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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Only 2 leftOtto
Biped robot kit. Servos: 4 micro servos (legs/feet). MCU: Arduino Nano compatible. Sensors: ultrasonic + buzzer. Power: 5V (battery pack). Programming: Arduino IDE / block coding. Functions: walk/dance/avoid.
Only 2 leftRC Car Kit
Chassis: 2WD/4WD. Motors: TT DC geared motors (3–6V) or higher. Driver: L298N/L293D. Controller: Arduino/ESP32 optional. Remote: IR/2.4GHz/Bluetooth. Power: 2×18650 or 4×AA. Optional ultrasonic/line sensor.
16mm Ultrasonic Humidifier Atomizer Disc Piezoelectric Mist Maker Transducer Module 108KHz
[Ultrasonic Sensor] The 16mm Ultrasonic Humidifier Atomization Module is a high-efficiency piezoelectric transducer designed for mist generation and humidification applications. It operates using ultrasonic vibration technology to convert water into ultra-fine mist particles quickly and efficiently. In addition, the module works on the principle of ultrasonic cavitation, where high-frequency sound waves generate rapid compression and rarefaction inside the water. As a result, microscopic water droplets are released into the air as cool mist. Because of its 108KHz resonant frequency, the atomizer produces fine and uniform fog particles while maintaining low noise operation. Furthermore, the compact 16mm design allows easy integration into humidifiers, aroma diffusers, medical atomizers, and DIY mist generation systems. The atomization disc is built using durable piezoelectric material for long operational life and stable performance. Moreover, the module consumes very little power while providing efficient mist output. ⚠️ Note: This atomizer module requires a compatible ultrasonic driver board for operation. The driver circuit is not included in the package and must be purchased separately. This ultrasonic humidifier module is widely used in humidifiers, beauty care devices, medical atomization equipment, aroma diffusers, and DIY electronics projects. 🔹 Key Features 16mm ultrasonic atomizer disc High-frequency 108KHz operation Fine and uniform mist generation Low noise operation Small fog particle output Long operational life High stability performance Low power consumption Suitable for humidifier and mist maker projects 🔹 Technical Specifications Product Type: Ultrasonic Atomizer Transducer Module Atomizer Diameter: 16mm Operating Voltage: DC 3.7V –5V Resonant Frequency: 108KHz Resonant Impedance: < 2 Ohms Coupling Factor: > 52% Electrostatic Capacity: 3000pF Spray Quantity: > 110mL/h Operation Type: Ultrasonic Piezoelectric Atomization Fog Particle Type: Ultra-Fine Mist Noise Level: Low Noise Operation Material: Piezoelectric Ceramic + Metal 🔹 Working Principle The ultrasonic atomizer uses a piezoelectric transducer immersed in water. When driven at high frequency, the transducer creates rapid mechanical oscillations that generate cavitation bubbles and surface waves. Consequently, microscopic water droplets are released into the air as cool mist with minimal energy consumption. 🔹 Applications This ultrasonic atomizer module is suitable for many applications, including: Humidifiers Mist makers Aroma diffusers Medical atomizers Facial beauty equipment DIY humidification projects Decorative fog systems 🔹 Package Includes 1 × 16mm Ultrasonic Humidifier Atomization Sensor Module
Type-C USB Mini Humidifier DIY Kit 4 in 1 | 4-Fogger Mist Maker Module | Ultrasonic Atomizer Film Sheet with Driver Board
[Ultrasonic Sensor] The Type-C USB Mini Humidifier DIY Atomizer Kit is a compact ultrasonic mist generation module designed for building or repairing USB-powered humidifiers, aroma diffusers, and fogging systems. Powered directly from a 5V USB Type-C source, the kit features a high-performance driver board and four ultrasonic ceramic atomizer discs that generate a dense, cool mist with low power consumption. Using advanced 108KHz ultrasonic atomization technology, the module converts water into ultra-fine mist particles without producing heat or mechanical noise. The stable driver circuit ensures reliable oscillation, efficient mist production, and long service life, making it an excellent choice for DIY enthusiasts, students, makers, repair technicians, and electronics hobbyists. Simply connect the module to a 5V USB Type-C power source, place the atomizer discs in water, and enjoy instant cool mist generation. It is compatible with custom humidifier enclosures, bottles, containers, 3D-printed projects, hydroponic systems, and decorative fog applications. ⭐ Features USB Type-C powered (5V DC) Four ultrasonic ceramic atomizer discs High-density cool mist output Advanced ultrasonic atomization technology Stable driver circuit for reliable operation Low power consumption Silent operation with no moving parts Compact and lightweight design Easy plug-and-play installation Ideal for DIY humidifiers and aroma diffusers 📋 Technical Specifications Product Type: USB Ultrasonic Humidifier Driver Kit Power Input: USB Type-C Female Operating Voltage: DC 4.5V–5V Input Voltage: 5V USB Operating Current: 300mA (Typical) Power Consumption: 2.5W–3W Rated Power: 2W Operating Frequency: 108KHz ±2KHz Atomizer Quantity: 4 Ceramic Atomizer Discs Atomization Technology: Ultrasonic Mist Output: High Density Fine Mist Driver Board: Ultrasonic Oscillation Control Module Cooling Method: Natural Cooling Power Connector: USB Type-C Female Socket Material: Ceramic Atomizer Discs + PCB Driver Board 🔧 Applications Suitable for: DIY USB Humidifiers Aroma Diffusers Replacement Humidifier Modules Decorative Fog Makers Hydroponic Systems Smart Garden Projects Terrariums & Vivariums Indoor Plant Humidification Science & Educational Projects Prototype Development DIY Electronics Projects 📦 Package Includes 1 × Ultrasonic Driver Circuit Board 4 × Ceramic Ultrasonic Atomizer Discs ⚠️ Note Use only clean water for optimal performance and longer atomizer life. Do not operate the module without water. Product images are for illustrative purposes only. The actual product may vary slightly depending on the manufacturing batch.
Type-C USB Ultrasonic Mist Maker Humidifier – 5V Atomizer Module with 108KHz Disc & PCB
[Ultrasonic Sensor] The Type-C USB Ultrasonic Mist Maker Humidifier Module is a compact and efficient atomization device designed for humidification and mist generation applications. It uses advanced ultrasonic technology to produce a fine and continuous mist, helping improve air moisture and indoor comfort. In addition, the module operates using a 108KHz high-frequency ceramic atomizer disc, which ensures stable mist generation with low noise and efficient performance. As a result, it is suitable for personal humidifiers, aroma diffusers, facial beauty equipment, and DIY mist projects. Because of its convenient Type-C USB power interface, the module can be powered easily using USB adapters, power banks, laptops, and other 5V USB power sources. Furthermore, the compact PCB design allows easy integration into portable and custom-built humidifier systems. The module also features low power consumption and reliable operation for continuous use. Moreover, the built-in safety protection helps automatically stop operation when the water level becomes too low. This ultrasonic mist maker is widely used in humidifiers, mist generators, aromatherapy devices, beauty care equipment, and medical atomization systems. 🔹 Key Features Ultrasonic mist generation technology 108KHz ceramic atomizer disc Convenient Type-C USB power input Fine and continuous mist output Compact and lightweight design Low power consumption Quiet operation Automatic low water protection Suitable for DIY humidifier projects 🔹 Technical Specifications Product Type: Ultrasonic Mist Maker Module Input Voltage: 5V DC Power Interface: Type-C USB Operating Frequency: 108KHz Atomization Mode: Continuous Power Consumption: Less than 3W Mist Output: Adjustable Operating Temperature: 5°C to 45°C Storage Temperature: -10°C to 60°C Material: PCB + Ceramic Atomization Film Humidity Range: Non-Condensing Application Type: Humidifier / Mist Generator 🔹 Applications This ultrasonic mist maker module is suitable for many applications, including: Portable humidifiers DIY mist generators Aroma diffusers Facial beauty equipment Medical liquid atomizers Air moisture control systems Decorative mist projects 🔹 Package Includes 1 × Humidifier Driver Board 1 × 16mm Atomizer Plate 1 × Cotton Stick Stand 1 × Cotton Stick
DC5V Humidifier USB Spray Module DIY Incubation Experiment Equipm 108KHz(mist maker)
[Ultrasonic Sensor] Description This DC Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip Moisture Film Humidification atomization machine consists of an atomization plate tablet with a diameter of 20mm. This Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the DC 3V to 5V power supply it will turn into a mini ultrasonic atomizer. As sound waves contain compression and rarefaction. Due to extremely rapid movement, water droplets can no longer sustain their liquid state and get converted into vapor immediately. This vibration is produced by a piezoelectric filament. Tags, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, Tags, OEM/ODM Available Mini Humidifier USB spray module humidifier pcb circuit board for DIY kit Incubation Experiment Equipment, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, 5V DIY Ultrasonic Piezoelectric Humidifier Moisture Atomizing Chip Mist maker circuit board. Features Come with a driver Power-ON trigger work 108KHz high-frequency oscillator Micron level aperture The glazed surface of the atomized sheet Features/Specs: Product Name: 108KHz 20mm USB Humidifier Work Voltage: DC 4.5V~5.0V Work Power:2W Work Frequency:108KHz(+/-3KHz) Power Type: Female USB Socket Diameter without rubber ring:16mm Diameter with rubber ring:20mm Spray Diameter:5um Spray Hole:740 holes Spray speed:50ml/h Work Temperature:0℃ ~ 85℃ Work Humidity:10%~90%RH Driver Size:35*19*15mm Length: 35 mm Width: 19 mm Height: 15 mm Weight: 10 gm Application: Humidifier | mist maker Beauty care for facial massager Medical liquid atomizing Equipment Package Includes: 1pc x Humidifier Driver Bord 1pc x 16mm Atomizer Plate 1pc x Cotton Stick Stand 1pc x Cotton Stick
Out of stockBlack Plastic DC24V 20MM 12LED Air Humidifier Mist Maker Nebulizer
[Ultrasonic Sensor] This is a DC24V 20MM 12LED Alloy Air Humidifier Mist Maker Nebulizer. Buy this powerful DC 24V Ultrasonic Humidifier device suitable for atomization with a plate diameter of 10 mm. It is mostly in demand for fish pot and decoration purposes in households. It’s a simple plug-and-play module in which you just have to deep down the module in water and Supply 24 volt DC supply directly from the battery or power supply Adapter and it will start working. Additionally, this 24v 12 Colourful LED Ultrasonic Humidifier 12 LED Mist Maker Fogger comes with 12 Waterproof LED with 3 different colours glowing alternately which adds the colourful mist to your decoration The fully waterproof module has a 5mm DC female jack to connect the 24V input power supply with a 1-meter long cable. Instruction to use: Deep the module in the water keeping 4 to 5 cm water level above the device Connect the power supply of 24V DC 1AMP and enjoy the fog. Use power supply at least with 1AMP output for best performance Do not deep it in water more than 5cm for maximum fog output. How does it work? Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the power supply it will turn into an ultimate ultrasonic atomizer. Features: Huge amount of humidification High-frequency vibration produces 350ml of mist per minute, humidifying all-day Wide Application Supporting use bonsai crafts, fish tank water tanks, DIY crafts and ect. Self-contained water level sensor Automatically power off with water shortage to prevent burning of the atomizer Package Includes: 1 x DC24V 20MM 12LED Ultrasonic Humidifier Mist Maker
DC 24V 16mm Super Ultrasonic Mist Maker Humidifier Atomizer 12LED Alloy
[Ultrasonic Sensor] 24V Color Changing Humidifier Ultrasonic Mist Maker Water Pond Atomizer Air Humidifiers 12 LED Buy this powerful DC 24V Ultrasonic Humidifier device suitable for atomization with a plate diameter of 20 mm. It is mostly in demand for fish pot and decoration purposes in households. It’s a simple plug-and-play module in which you just have to deep down the module in water and Supply 24 volt DC supply directly from the battery or power supply Adapter and it will start working. Additionally, this 24v 12 Colourful LED Ultrasonic Humidifier 12 LED Mist Maker Fogger comes with 12 Waterproof LED with 3 different colours glowing alternately which adds the colourful mist to your decoration The fully waterproof module has a 5mm DC female jack to connect the 24V input power supply with a 1-meter long cable. Instruction to use: Deep the module in the water keeping 4 to 5 cm water level above the device Connect the power supply of 24V DC 1AMP and enjoy the fog. Use power supply at least with 1AMP output for best performance Do not deep it in water more than 5cm for maximum fog output. How does it work? Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the power supply it will turn into an ultimate ultrasonic atomizer. Features: Huge amount of humidification High-frequency vibration produces 350ml of mist per minute, humidifying all-day Wide Application Supporting use bonsai crafts, fish tank water tanks, DIY crafts and ect. Self-contained water level sensor Automatically power off with water shortage to prevent burning of the atomizer Package Includes: 1 x DC24V 16MM 12LED Alloy Air Humidifier Mist Maker Nebulizer
Out of stockDC 24V 36mm Super Ultrasonic Mist Maker Humidifier Atomizer
[Ultrasonic Sensor] if you are wandering to make a device that is automatically used to increase room humidity levels by adding water vapor to the air. then this sensor is needed for you. This sensor works by transposing high-frequency sound waves into mechanical energy that is transferred into a liquid, creating standing waves. Buy this powerful DC 24V Ultrasonic Humidifier device suitable for atomization with a plate diameter of 10 mm. It is mostly in demand for fish pot and decoration purposes in households. It’s a simple plug-and-play module in which you just have to deep down the module in water and Supply 24 volt DC supply directly from the battery or power supply Adapter and it will start working. The fully waterproof module has a 5mm DC female jack to connect the input power source with a 1-meter long cable. Instruction to use: Deep the module in the water keeping 4 to 5 cm water level above the device Connect the power supply of 24V DC 1AMP and enjoy the fog. Use power supply at least with 1AMP output for best performance Do not deep it in water more than 5cm for maximum fog output. How does it work? Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the power supply it will turn into a mini ultrasonic atomizer. Features: Plug and Play Device Fully waterproof and Shockproof 1-meter long cable provides ease for connections Universal 5 mm DC Female jack Low noise operation. Small fog particles. Long operation life. High stability. High Conversion Efficiency. Low Impedance Stable Waveform. Low Dielectric Loss. Strong Corrosion Resistance. Package Includes: 1 x DC 24V 36mm Super Ultrasonic Mist Maker Humidifier Atomizer
HC-SR04-Ultrasonic Range Finder
[Ultrasonic Sensor] This HC-SR04-Ultrasonic Range Finder is a very popular sensor that is found in many applications where it requires measuring distance and detecting objects. The module has two eyes like projects in the front which forms the Ultrasonic transmitter and Receiver. The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do. This Ultrasonic Sensor module is a transmitter, a receiver, and a control circuit in one single pack!! It has very handy and compact construction. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). The Trigger and the Echo pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects the return wave the Echo pin goes high for a particular amount of time which will be equal to the time taken for the wave to return back to the sensor. Ultrasonic Ranging Module HC-SR04 provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm. Wiring +5V(positive) Trig(control) Echo(receive) GND(negative) Features : Measures the distance within a wide range of 2cm to 400cm Stable performance Accurate distance measurement High-density Small blind distance Package Includes: 1 x HC-SR04-Ultrasonic Range Finder