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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Stainless Steel Rule (12 inch / 150mm)
Stainless steel rule, 12 inch / 150mm.
Out of stockAnti-Static Precision Tweezers Set (6 pc)
Stainless ESD-safe tweezers — straight, curved, blunt, sharp. SMD-ready.
Digital Multimeter Test Leads with Ultra Sharp Needle Probe & Banana Plug CAT III 1000V 10A for SMD
[Hook up wire] The Digital Multimeter Test Lead Kit is a high-quality replacement probe set designed for accurate electrical measurements and electronic troubleshooting. Featuring ultra-sharp stainless steel needle probes, these leads allow easy access to miniature IC pins, SMD components, PCB tracks, LEDs, and other small electronic devices without causing damage. The probes are fitted with standard 4mm banana plug connectors, making them compatible with most digital multimeters, clamp meters, bench meters, and testing equipment from brands such as Fluke, Extech, Mastech, Uni-T, Victor, Sanwa, and many more. Constructed using high-quality PVC insulated cables and durable metal probes, the leads provide excellent flexibility, low resistance, and long service life. The CAT III safety rating ensures safe operation up to 1000V with a maximum current rating of 10A, making them suitable for both electronics and electrical testing. The built-in protective finger guards improve operator safety, while the flexible cables remain tangle-free during continuous testing. These probes are ideal for laboratory work, electronics repair, field service, educational laboratories, industrial maintenance, and DIY electronics projects. 🔹 Key Features Ultra-sharp stainless steel needle probes Standard 4mm banana plug connectors CAT III 1000V safety rating Maximum current rating: 10A Flexible PVC insulated cables Accurate low-resistance measurements Comfortable insulated probe handles Durable construction for long service life Compatible with most digital multimeters Ideal for PCB, SMD, IC and electrical testing 🔹 Technical Specifications Product Type: Digital Multimeter Test Leads Probe Type: Ultra Sharp Needle Probe Probe Colors: Red & Black Connector Type: 4mm Banana Plug Cable Material: PVC Insulated Probe Material: Stainless Steel / Metal Cable Length: Approx. 83cm Total Length: Approx. 103cm Maximum Current: 10A Maximum Voltage: 1000V Safety Rating: CAT III 1000V Measurement Type: Voltage, Current, Resistance, Continuity Compatibility: Most Digital Multimeters 🔹 Compatible With Fluke Multimeters Extech Multimeters Mastech Multimeters UNI-T Multimeters Victor Multimeters Sanwa Multimeters DT830 Series DT9205 Series Most multimeters with 4mm banana sockets 🔹 Applications Suitable for: Digital multimeters PCB testing SMD component testing IC pin testing LED testing Continuity testing Voltage measurement Current measurement Electronics repair Laboratory testing Industrial maintenance DIY electronics projects 🔹 Package Includes 1 × Red Multimeter Test Lead 1 × Black Multimeter Test Lead
Digital Multimeter Test Leads with Ultra Sharp Needle Probe & Banana Plug CAT III 1000V 10A
[Hook up wire] The Digital Multimeter Test Lead Kit is a high-quality replacement probe set designed for accurate electrical measurements and electronic troubleshooting. Featuring ultra-sharp stainless steel needle probes, these leads allow easy access to miniature IC pins, SMD components, PCB tracks, LEDs, and other small electronic devices without causing damage. The probes are fitted with standard 4mm banana plug connectors, making them compatible with most digital multimeters, clamp meters, bench meters, and testing equipment from brands such as Fluke, Extech, Mastech, Uni-T, Victor, Sanwa, and many more. Constructed using high-quality PVC insulated cables and durable metal probes, the leads provide excellent flexibility, low resistance, and long service life. The CAT III safety rating ensures safe operation up to 1000V with a maximum current rating of 10A, making them suitable for both electronics and electrical testing. The built-in protective finger guards improve operator safety, while the flexible cables remain tangle-free during continuous testing. These probes are ideal for laboratory work, electronics repair, field service, educational laboratories, industrial maintenance, and DIY electronics projects. 🔹 Key Features Ultra-sharp stainless steel needle probes Standard 4mm banana plug connectors CAT III 1000V safety rating Maximum current rating: 10A Flexible PVC insulated cables Accurate low-resistance measurements Comfortable insulated probe handles Durable construction for long service life Compatible with most digital multimeters Ideal for PCB, SMD, IC and electrical testing 🔹 Technical Specifications Product Type: Digital Multimeter Test Leads Probe Type: Ultra Sharp Needle Probe Probe Colors: Red & Black Connector Type: 4mm Banana Plug Cable Material: PVC Insulated Probe Material: Stainless Steel / Metal Cable Length: Approx. 83cm Total Length: Approx. 103cm Maximum Current: 10A Maximum Voltage: 1000V Safety Rating: CAT III 1000V Measurement Type: Voltage, Current, Resistance, Continuity Compatibility: Most Digital Multimeters 🔹 Compatible With Fluke Multimeters Extech Multimeters Mastech Multimeters UNI-T Multimeters Victor Multimeters Sanwa Multimeters DT830 Series DT9205 Series Most multimeters with 4mm banana sockets 🔹 Applications Suitable for: Digital multimeters PCB testing SMD component testing IC pin testing LED testing Continuity testing Voltage measurement Current measurement Electronics repair Laboratory testing Industrial maintenance DIY electronics projects 🔹 Package Includes 1 × Red Multimeter Test Lead 1 × Black Multimeter Test Lead
Multitec Stainless Steel Wire Stripper & Cutter (150B-SS)
[Cutter] Multitech MT-150B-SS Wire Stripper and Cutter The Multitech MT-150B-SS Wire Stripper and Cutter is a high-quality tool designed for professionals and DIY enthusiasts. Made from durable stainless steel, this versatile tool efficiently strips and cuts various wire types, making it ideal for electrical work. This Multitec MT-150B-SS Stripper is a new heavy duty handles with finger holding ring. Multitec MT-150B-SS Stripper is a High-grade alloy steel stripper/cutter ideal for professionals. The tool is suitable for the cutting. This cutter is broadly used for cutting fiber cable perpendicular to the cable axis. Suitable for electrical work by electricians and other tradesmen primarily for gripping, twisting, bending and cutting wire and cable. Technical Specifications Brand: Multitech Model: MT-150B-SS Material: Stainless Steel Color: Steel Grey with Green Handles Finish: Satin finish, rust-resistant Weight: Approximately 82 grams Features Dual Functionality: Combines wire stripping and cutting capabilities in one tool Ergonomic Design: Comfortable grip handles for ease of use during prolonged tasks High Strength: Built with high tensile strength to withstand heavy-duty use Rust Resistance: Made from stainless steel to prevent rust and corrosion Precision Cutting: Designed for clean cuts and accurate wire stripping Applications Ideal for electricians, technicians, and hobbyists Suitable for various electrical tasks including wiring, looping, and installation Effective for cutting fiber cables and other types of wires Specification: Brand Multitec Color STEEL GREY, Green Material Stainless-Steel Weight 50g Package Includes: 1 x Stainless Steel Wire Stripper & Cutter 150B-SS
Crocodile Alligator Clip 50 mm Black and Red
Description: An alligator clip, also called a spring clip, creates a temporary electrical connection using a simple mechanical design.It gets its name because the jaws resemble an alligator or crocodile’s mouth, opening and closing to grip objects securely.The clip works like a spring-loaded clothespin that uses tapered, serrated jaws to hold wires or metal parts tightly.A spring pushes the jaws together, allowing the clip to grip objects and maintain a reliable electrical connection.Manufacturers design these clips for electronics testing, enabling quick connections without soldering or permanent joints.One jaw usually connects to a wire by crimping or soldering for efficient current transfer.Some clips use a bent jaw forming the inner contact of a 15 mm to 4 mm female banana jack.This design allows a fast, non-permanent connection between test circuits and laboratory instruments.A plastic cover or boot surrounds the clip to prevent short circuits and protect users from accidental shocks.Engineers and students use these clips widely in testing, prototyping, and educational experiments. Applications: Technicians use small clips (15 mm–40 mm) in electrical laboratories, schools, and college labs for quick test connections.Large clips, called automotive clips or battery clamps, use solid copper for low resistance and strong current flow.Users connect these large clips with thick insulated copper cables between automobile batteries or heavy electrical systems.Hobbyists and professionals rely on these clips for safe, reusable, and efficient electrical connections. Product Example: Check the Crocodile Alligator Clip 50 mm – Red and Black, made from durable stainless steel with a protective plastic shroud.Its spring-loaded jaws open wide to grip different wire sizes securely during testing or circuit connection.The serrated teeth ensure a strong, slip-free grip that maintains stable electrical contact during operation. Package Includes: 1 × Crocodile Alligator Clip 50 mm (Black and Red)
18650 SMD/SMT High-Quality Single Battery Holder
[Lithium Battery Holder] 18650 SMD/SMT High-Quality Single Battery Holder The 18650 SMD/SMT Single Battery Holder is a compact PCB-mount battery holder designed to securely hold a single 18650 Li-ion rechargeable cell. Its SMD mounting pins allow the holder to be directly soldered onto a PCB, eliminating the need for loose battery wires and making it suitable for compact electronic designs. Multiple electronics retailers list the same holder with ABS construction, gold-plated contacts, stainless-steel contact material and dimensions of approximately 77 × 21 × 15mm. ⭐ Key Features Designed for 1 × 18650 lithium-ion cell SMD/SMT PCB mounting design Lightweight and compact Directly mounts onto a PCB Eliminates loose battery wiring Gold-plated brass contact points Stainless-steel battery contact/shrapnel High-quality ABS body Secure battery holding mechanism Easy battery insertion and replacement Reusable design Good environmental and temperature resistance Suitable for compact PCB projects 📋 Technical Specifications Product Type: 18650 SMD/SMT Battery Holder Number of Cells: 1 Compatible Battery: 18650 Li-ion cylindrical cell Mounting Type: SMD / SMT Body Material: ABS Contact Material: Stainless Steel Contact Plating: Gold Contact Construction: Gold-plated brass contact points with stainless-steel battery retention contacts Color: Black Operating Temperature: -40°C to 180°C Dimensions: Approx. 77 × 21 × 15mm (L × W × H) Weight: Approx. 8g 🔋 Battery Compatibility This holder is designed specifically for a single 18650 cylindrical Li-ion cell. It provides mechanical support and electrical contacts between the battery and the PCB; the holder itself does not provide battery charging, overcharge protection or BMS functionality. 🔧 Applications PCB battery-powered projects DIY electronics Arduino projects ESP32 and microcontroller projects Robotics Portable electronic devices Battery-powered gadgets IoT devices Custom PCB designs Rechargeable battery projects Prototyping and development boards 🛠️ Installation Position the holder on the PCB according to the PCB footprint. Ensure the positive and negative contacts are correctly oriented. Solder the SMD terminals to the PCB. Allow the solder joints to cool and inspect them for proper connection. Insert a compatible 18650 battery with the correct polarity. Verify the battery voltage and circuit polarity before powering the project. 📦 Package Includes 1 × 18650 SMD/SMT High-Quality Single Battery Holder ⚠️ Precautions Use only a compatible 18650 cylindrical Li-ion cell. Check the positive and negative polarity before inserting the battery. The holder is only a mechanical/electrical battery holder; it does not include a charger or BMS. Do not short-circuit the contacts. Do not force an incorrectly sized battery into the holder. Ensure the PCB solder joints are secure before inserting the battery. Do not exceed the electrical limits of the holder or PCB. Remove the battery before soldering or servicing the PCB.
XH-W3001 AC 220V 1500W Digital Microcomputer Thermostat Switch
[Temperature Sensor] This is XH-W3001 AC 220V 1500W Digital Temperature Controller Microcomputer Thermostat Switch. A temperature measurement and Controller tool with high accuracy and precision at a very low cost. It offers a high-temperature control precision of 0.1℃. The temperature control range from -50℃ to 110℃. The LED display shows the results clearly. One can directly install or embed the XH-W3001 in industrial control equipment panel, convenient and quick. It features a 1M probe made up of stainless steel material which makes it waterproof and does not let it rust easily. Also, all the delicate and sensitive components are kept safe in ABS flame retardant housing which is avirulent and environmental protective. Button functions: Press UP to show the start temperature button. On Long press of the UP button, the display starts flashing, then press the UP or DOWN button Set the beginning of the temperature value Press Down the display button to stop temperature. On the Long press of the Down button, the display starts flashing, then press the Up or Down button Set to stop the temperature value. Features: Easy to install Output type: AC Output (AC 220V 1500W). Output capacity: MAX 10A temperature measurement, display; refrigeration, heating control Temperature setting upper and lower limits Simple operation, suitable for seafood machines. Upper key: The start temperature is displayed in one press, and long press to set start temperature. Lower key: The stop temperature is displayed in one press, and long press to set stop temperature. Package Includes: 1 x XH-W3001 AC 220V 1500W Digital Microcomputer Thermostat Switch.
Out of stock12 mm 12V-24V Momentary Plastic Switch
[Mechanical Switches] This Momentary Metal Pushbutton Switch is a perfect choice if you are in need of a heavy-duty push-button! These metal push buttons are a very tough, small, It is an SPDT with 12mm threading and 1mm pitch. It gives premium look to your dashboard or control panel with a Led Light ring around the push area of the switch. These switches are available in various LED light Colors, you can choose for your application purpose Note: Momentary means it turns off as soon as your pressure is released Non-momentary switches maintain the positions even if we release the pressure. Features: Stainless steel material for long-term use High-end appearance and good to touch Inbuilt Colorful Ring illumination LED Available in Various LED Color Independent LED terminals Bright daylight LEDs Single pole push to make and Push to break Function Front and rear panel seal to IP65 Integral supply resistors TVS protection Good electrical conductivity Non-Momentary type push-button switch Rubber ring and hexagon nut to fix, Waterproof and Dustproof Specifications: Operating Voltage (VDC): 12V – 24V Max. Operating Current (mA): 2000 On/Off Function: Push to ON and Push to OFF Switch Type: Momentary Mounting Hole Diameter (mm): 12 Contact Type: Solder Type Contact Material: Silver Alloy Contact Resistance: ≤50 MΩ Insulation Resistance (MΩ): ≥1000 Operating Temperature Range (°C): -20 to 55 Operation Force: About 3-5N Body Material: Stainless Steel and Plastic Mech. & Electrical Lifecycle: ≈ 100,000 Protection Standard: IP65 Package Includes: 1 x 12 mm 12V-24V Momentary Plastic Switch
Out of stockZP4510 P45 Water Level Sensor Float Control Switch
[Water Level Sensor] A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or another device. A float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or another device. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, pumps, ponds, basement alarms, boats, air condition drain pans, pressure washers, carpet cleaning machine, reef aquarium, fluid control, ice machines, coffee pots, marine, automotive, automobiles, tropical fish tanks, evaporator coils, condensation line, in relays, or whatever your project may be. It can be easily converted from normally open to normally close by inverting the float. Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay and contactor are not included here. Specifications:- Cable Length: 30.5(cm) Maximum Load: 50 W Max Switching Voltage: 100V DC Minimum Voltage: 250V DC Maximum Switching Current: 0.5 A Max Load Current: 1.0 A Max Contact Resistance: 0.4 ΩTemp Rating: -20~ 80 degree Applications:- Household Equipment such as overhead water tanks, Water purifiers. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or whatever your project may be. Up float switch Contains no mercury Product. How Magnetic Reed Liquid Level Sensors Work:- The purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls. Most float switches are "normally closed," meaning the two wires coming from the top of the switch complete a circuit when the float is at its low point, resting on its bottom clip or stop (for example, when a tank is dry). Most float switches utilize a magnetic reed switch to open or close the circuit. The reed is encased in a glass tube, which is cemented into a plastic or stainless steel stem with epoxy. The illustration to the left demonstrates how a magnet can be used to open or close a circuit by moving it closer to or farther away from a reed switch. When the magnet comes close to the two contacts, they draw together and touch, allowing the current to pass through. When the magnet is moved away, the contacts demagnetize and separate, breaking the circuit. In a float switch, the magnetic reed switch is hermetically sealed in a stem, most often made from plastic or stainless steel. The float encases a sealed magnet, which moves up and down the length of the stem as a fluid level rises and falls. As the magnet passes by the contacts in the encased reed switch, they draw together and complete a circuit between the two lead wires. The operation shown can usually be reversed by removing the bottom clip from the switch, inverting the float, and replacing the clip. When this change is made, the switch circuit will be open when the float is resting on the bottom clip and closed when the float rises. Properly used, float switches can deliver millions of on/off cycles, for years of dependable operation. Failures are normally due to overloading, frequently caused by spiking voltage. Before designing a circuit that uses a float switch, be sure to read our Technical Page on Spiking Voltage & Float Switches. * Product Images are shown for illustrative purposes only and may differ from the actual products.
Out of stockAnti Static ESD Wrist Strap Elastic Band with Clip for Sensitive Electronics Repair Work Tool
[Current Sensor] An Anti Static ESD Wrist Strap Elastic Band with Clip for Sensitive Electronics is an antistatic device used to safely ground a person working on very sensitive electronic equipment, to prevent the building up of static electricity on the operator’s body, which can result in the electrostatic discharge (ESD). Features : Simply wrap the strap around wrist and clip to a grounded source. Prevent Static shock in the dry environment. Keep static from damaging electronic parts and types of equipment. Adjustable wrist strap with alligator clip tip. Inner conducting layer made of stainless shell filaments. Durable Polyurethane-Coated Coil Cords. High-Quality Strain relief. The soft elastic band comfort. Rinsing Resisting. 22 CMS Conductive Fiber Woven elastic band with Velcro fasteners. Contact plate through 316-grade stainless steel, adjustable. Insulation: PVC. Note:- This is a Generic non-branded product. The product's brand and colour may be different. This device is very special care of sensitive electronic devices which can be damaged by electrostatic discharge. If an operator has a sudden build-up of Electrostatic Charge in his/her body and in this case if the corresponding operator touches the electronic device then certain components like IC’s make a way for the Electrostatic Charge. If this happens the IC will be damaged immediately, so this Anti Static ESD Wrist Strap will avoid such accidents and keep your sensitive electronic equipment safe.
3-Pin Micro Limit Switch with Lever Arm
[Mechanical Switches] 3-Pin Micro Limit Switch with Lever Arm – Miniature Snap Action Switch SPDT Micro Switch • 3 Terminal • Lever Actuator • Snap Action • Industrial & DIY Applications The 3-Pin Micro Limit Switch with Lever Arm is a compact and highly reliable SPDT (Single Pole Double Throw) snap-action switch designed for precise mechanical position detection and control applications. It features a spring-loaded metal lever actuator that provides fast and accurate switching with minimal operating force, making it ideal for automation, robotics, CNC machines, 3D printers, home appliances, vending machines, and industrial equipment. This miniature limit switch includes three terminals (COM, NO, and NC), allowing flexible wiring for normally open or normally closed circuit configurations. Its durable housing and high-quality internal contacts ensure long service life, excellent electrical performance, and reliable operation even in demanding environments. The compact size makes it easy to integrate into tight spaces while providing dependable switching performance for position sensing, safety interlocks, and motion control systems. ⭐ Key Features SPDT (Single Pole Double Throw) configuration 3 terminals: COM, NO, and NC Spring-loaded metal lever actuator Fast snap-action switching mechanism Compact and lightweight design High mechanical durability Reliable electrical contact performance Easy panel or PCB mounting Suitable for industrial and DIY applications Long operating life Precise position detection Low operating force 📋 Technical Specifications Product Type: Micro Limit Switch Switch Configuration: SPDT (1NO + 1NC) Number of Terminals: 3 Actuator Type: Lever Arm Contact Type: Snap Action Rated Voltage: Up to 250V AC Rated Current: Up to 5A Operating Force: Low Force Contact Material: Silver Alloy Body Material: High-Strength Plastic Lever Material: Stainless Steel Mechanical Life: Up to 1,000,000 Operations Electrical Life: Up to 100,000 Operations Mounting Type: Panel / Screw Mount Operating Temperature: -25°C to +85°C Color: Black with Silver Lever 🔧 Applications 3D Printers CNC Machines Robotics Projects Industrial Automation Limit Detection Systems Position Sensing Home Appliances Vending Machines Door and Lid Detection Safety Interlock Systems DIY Electronics Arduino and ESP32 Projects Motion Control Systems Electronic Equipment 📦 Package Includes 1 × 3-Pin Micro Limit Switch with Lever Arm ⚠️ Note Verify COM, NO, and NC terminal connections before wiring. Do not exceed the rated voltage or current. Mount securely to ensure accurate lever operation. Product appearance may vary slightly depending on the manufacturing batch.
Out of stock12v 40W Ceramic Cartridge Heater
[Heating Module] The 12v 40W Ceramic Cartridge Heater is a powerful little beast of a heater. Get rid of fragile and poor tolerance enamel resistors and switch to a purpose made high power ceramic heater cartridge. Increase the reliability of your extruder with this heater cartridge. Also, it heats up faster. It fits nicely in our extruder, so it’s an easy replacement. Get your hot end hot quickly and hit the highest of temperatures. Comes with a meter of silicone insulated high-temperature wire. Cartridge heaters consist of a cylindrical stainless steel tube and thus provide a high corrosion prevention. The heating wire inside which is wound onto a ceramic core. The choice of coils varies depending at the power, and provide an excellent uniform distribution of heat, which considerably increases the long life of the heater in addition to prevents the oxidation of the heater wire even at high temperatures. Features : Works on many 3D printers, including RepRap and Prusa models. It fits nicely in our extruder, so it’s an easy replacement. Small but powerful. Get your hotend hot quickly. This unit is a more powerful unit than the standard unit for many 3D printers. Package Includes : 1 x 12v 40W Ceramic Cartridge Heater.
Out of stockXH-W3001 DC 12V 120W Digital Microcomputer Thermostat Switch
[Temperature Sensor] XH W 3001 Thermostat DC 12 Volt 10 Amp Digital Temperature Controller Heating/Cooling Temperature Control Switch This is an XH-W3001 DC 12V 120W Digital Microcomputer Thermostat Switch. A temperature measurement and Controller tool with high accuracy and precision at the very low cost. It offers high-temperature control precision of 0.1℃. The temperature control range from -50℃ to 110℃. It features a 1M probe made up of stainless steel material which makes is waterproof and does not let it rust easily. Also, all the delicate and sensitive components are kept safe in ABS flame retardant housing which is avirulent and environmental protective. BUTTON FUNCTIONS : Press UP to show start temperature button. On Long press of the UP button, the display starts Flashing, then press the UP or DOWN button Set the beginning of the temperature value Press Down the display button to stop temperature. On Long press of the Down button, the display starts Flashing, then press the UP or Down button Set to stop the temperature value. Features: Easy to install Output type: Direct Output Output capacity: MAX 10Aemperature measurement, display; refrigeration, heating control Temperature setting upper and lower limits Simple operation, suitable for seafood machines. Upper key: The start temperature is displayed in one press, and long press to set start temperature. Lower key: The stop temperature is displayed in one press, and long press to set stop temperature.