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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Corsair RM750e (750W, 80+ Gold, Modular)
750W fully modular, 80+ Gold, ATX 3.0 with native 12V-2x6 (12VHPWR) for RTX 40 cards. 7-year warranty.
Corsair RM850e ATX 3.1 Gold Fully Modular Power Supply (850W)
[Power Supply] Corsair RM850e Fully Modular Low-Noise ATX 3.1 Power Supply Corsair RMe Series fully modular power supplies deliver quiet, reliable 80 PLUS Gold and Cybenetics Gold rated power to your PC. ATX 3.1 and PCIe 5.1 compliant with native 12V-2x6 cable for modern RTX 40/50 series GPUs. ⭐ Key Features - ATX 3.1 & PCIe 5.1 Certified with native 12V-2x6 GPU connector - 80 PLUS Gold & Cybenetics Gold certified energy efficiency - 105°C-rated industrial-grade capacitors for steady power and long-term reliability - Zero RPM Fan Mode for near-silent operation at low to medium loads - 120mm rifle bearing fan with specially calculated fan curve - 7-Year Corsair Manufacturer Warranty 📋 Technical Specifications - Continuous Power: 850 Watts - Efficiency: 80 PLUS Gold - Fan Size: 120mm Rifle Bearing - Dimensions: 140 x 150 x 86 mm (Compact 140mm length) - Connectors: 1x ATX 24-pin, 2x EPS 8-pin, 1x PCIe 12V-2x6 (16-pin), 3x PCIe 8-pin, 7x SATA 📦 Package Includes - 1 x Corsair RM850e 850W Modular Power Supply - 1 x Complete Modular Black Cable Set & AC Power Cord
SanDisk Extreme E61 1TB USB 3.2 Gen 2 Type-C Rugged Portable SSD
[Storage] SanDisk Extreme E61 1TB USB 3.2 Gen 2 Type-C Portable Solid State Drive Rugged, high-speed NVMe storage on the go. Delivers blazing read speeds up to 1050 MB/s and write speeds up to 1000 MB/s in a pocket-sized, drop-resistant, IP65 water-and-dust resistant silicone shell with carabiner loop. ⭐ Key Features - Up to 1050 MB/s read and 1000 MB/s write speeds - IP65 water and dust resistance, up to 3-meter drop protection - Handy carabiner loop secures the drive to your belt loop or backpack - 256-bit AES hardware encryption with password protection - Compatible with Windows, Mac, Android, and USB-C iPhones/iPads 📋 Technical Specifications - Capacity: 1TB - Interface: USB 3.2 Gen 2 (Type-C) - Durability: IP65 Rated - Dimensions: 100.54 x 52.42 x 8.95 mm - 5-Year SanDisk Official Warranty 📦 Package Includes - 1 x SanDisk Extreme Portable SSD 1TB - 1 x USB-C to USB-C Cable with USB-A Adapter
WD Blue 1 TB 7200 RPM HDD
Bulk storage. SATA 6 Gb/s, 64 MB cache, 5-year design life. Cheap mass storage for game libraries you don't replay often.
Crucial MX500 500 GB SATA SSD
Reliable 2.5" SATA SSD. 560/510 MB/s read/write, 5-year warranty. Fine OS drive on older systems without M.2.
Samsung 870 EVO 1 TB SATA SSD
Top-tier SATA SSD. 560/530 MB/s, V-NAND, 5-year warranty. Use as game storage drive.
Corsair CV450 450W (80+ Bronze)
Entry PSU for budget builds (i3 + GTX class). 80+ Bronze, 3-year warranty. No 12VHPWR — pair with mainstream GPUs only.
Corsair RM850x 850W (80+ Gold)
Premium 850W Gold. 10-year warranty, zero-RPM mode. Sized right for 4080 SUPER and high-core CPUs.
Seasonic Focus PX-1000 (1000W, 80+ Platinum)
1000W fully modular, 80+ Platinum, hybrid silent fan. Bulletproof choice for 4090 + 14900K builds. 10-year warranty.
Only 2 leftCorsair HX1200i (1200W, 80+ Platinum, Digital)
1200W fully modular, 80+ Platinum, software-monitored rails. Halo PSU for dual-GPU / extreme overclocking. 10-year warranty.
Noctua NH-D15 chromax.black (Dual-tower air)
Reference dual-tower air cooler in stealth black. 6 heatpipes, twin NF-A15 fans, near-AIO performance. 6-year warranty.
Lian Li Galahad II Trinity 360 (360 mm AIO)
360 mm AIO with rotatable pump cap, magnetic ARGB fans. Tames 14900K / 7950X3D effortlessly. 6-year warranty.
Out of stockArctic MX-6 Thermal Paste 4 g
Premium thermal paste, 4 g tube. Easy spreadability, 8-year durability.
Thermaltake Toughpower GF1 850W 80 Plus Gold Fully Modular SMPS
[Power Supply] Thermaltake Toughpower GF1 850W 80 PLUS Gold Fully Modular Power Supply Features 100% high quality Japanese 105°C capacitors, 140mm hydraulic bearing fan with Smart Zero Fan technology, and ultra-strict voltage regulation (< ±2%). ⭐ Key Features - 80 PLUS Gold certified up to 90% efficiency - 100% Japanese 105°C capacitors - Ultra Quiet 140mm Hydraulic Bearing Fan with Smart Zero Fan switch - Ripple noise < 30mV across all rails - 10-Year Thermaltake Warranty 📋 Technical Specifications - Model: PS-TPD-0850FNFAGD-H - Max Output Capacity: 850W - Modular: Fully Modular flat black cables 📦 Package Includes - 1 x Thermaltake Toughpower GF1 850W Power Supply - 1 x Cable Bag with full modular cabling
UPS Rocker Switch Red 6 Pin ON-OFF-ON with Indicator
[Mechanical Switches] UPS Rocker Switch Red 6 Pin ON-OFF-ON with Indicator – BR34 The UPS Rocker Switch Red 6 Pin ON-OFF-ON with Indicator (BR34) is a durable rocker switch designed for reliable switching applications. It features a 6-pin DPDT configuration, copper contacts and a large rocker design with an indicator light for convenient operation and status indication. With a rated voltage of up to 250V and a rated current of 6A, it is suitable for UPS systems, power strips, stabilizers, water dispensers, coffee machines, automobiles, USB hubs, machinery and other electrical equipment. ⭐ Key Features 6-pin rocker switch ON-OFF-ON switching function DPDT switch configuration Red color Built-in indicator Copper contact construction Illuminated design Large rocker size Rated current up to 6A Rated voltage up to 250V Durable construction Suitable for panel-mount applications Indicator helps provide visual switching/status indication 📋 Technical Specifications Model: BR34 Switch Type: Rocker Switch Switch Function: ON-OFF-ON Number of Pins: 6 Switch Throw Type: DPDT Rated Voltage: 250V Rated Current: 6A Illuminated: Yes / With Indicator Indicator: Built-in indicator Contact Plating: Copper Material: Copper and Iron Color: Red Size: Big Rocker Mechanical Life: Up to 5 years Mounting: Panel Mount Application: Electrical and electronic equipment 🔧 Applications UPS systems Power strips Voltage stabilizers Water dispensers Coffee machines Automobiles USB hubs Electrical machinery DIY electrical projects Control panels Power switching applications 🛠️ Installation Ensure the power supply is switched OFF before installation. Identify the correct terminals according to the required DPDT switching configuration. Connect the wires securely to the appropriate terminals. Ensure the connected load does not exceed the 6A rated current. Mount the switch firmly into the appropriate panel cutout. Verify the indicator wiring and rating before connection. 📦 Package Includes 1 × UPS Rocker Switch Red 6 Pin ON-OFF-ON with Indicator Model: BR34 ⚠️ Precautions Do not exceed the rated 250V / 6A specification. Switch OFF the power supply before installation or wiring. Ensure proper insulation of all electrical connections. Use suitable wiring according to the connected load. Verify the indicator voltage specification before connecting it to the circuit. Verify the pin configuration before connecting the switch. Do not directly connect the indicator to a voltage for which it is not rated.
UPS Rocker Switch Black 6 Pin ON-OFF-ON
[Mechanical Switches] UPS Rocker Switch Black 6 Pin ON-OFF-ON – BR34 The UPS Rocker Switch Black 6 Pin ON-OFF-ON (BR34) is a durable rocker switch designed for reliable switching applications. It features a 6-pin DPDT configuration, copper contacts and a large rocker design for convenient operation. With a rated voltage of up to 250V and a rated current of 6A, it can be used in power strips, stabilizers, water dispensers, coffee machines, automobiles, USB hubs, machinery and other electrical equipment. ⭐ Key Features 6-pin rocker switch ON-OFF-ON switching function DPDT switch configuration Black color Copper contact construction Non-illuminated design Large rocker size Rated current up to 6A Rated voltage up to 250V Durable construction Suitable for panel-mount applications 📋 Technical Specifications Model: BR34 Switch Type: Rocker Switch Switch Function: ON-OFF-ON Number of Pins: 6 Switch Throw Type: DPDT Rated Voltage: 250V Rated Current: 6A Illuminated: No / Non-Illuminated Contact Plating: Copper Material: Copper and Iron Color: Black Size: Big Rocker Mechanical Life: Up to 5 years Mounting: Panel Mount Application: Electrical and electronic equipment 🔧 Applications UPS systems Power strips Voltage stabilizers Water dispensers Coffee machines Automobiles USB hubs Electrical machinery DIY electrical projects Control panels Power switching applications 🛠️ Installation Ensure the power supply is switched OFF before installation. Identify the correct terminals according to the required DPDT switching configuration. Connect the wires securely to the appropriate terminals. Ensure the connected load does not exceed the 6A rated current. Mount the switch firmly into the appropriate panel cutout. 📦 Package Includes 1 × UPS Rocker Switch Black 6 Pin ON-OFF-ON ⚠️ Precautions Do not exceed the rated 250V / 6A specification. Switch OFF the power supply before installation or wiring. Ensure proper insulation of all electrical connections. Use suitable wiring according to the connected load. This is a non-illuminated switch. Verify the pin configuration before connecting the switch to your circuit.
DHT11 Digital Temperature and Humidity Sensor Module 3.3V-5V for Arduino & Raspberry Pi
[Temperature Sensor] The DHT11 Digital Temperature and Humidity Sensor Module is a reliable and cost-effective sensor designed to measure ambient temperature and relative humidity. It combines a capacitive humidity sensing element and a thermistor with a built-in digital signal processing unit, providing calibrated digital output directly to microcontrollers. In addition, the DHT11 offers stable performance and excellent long-term reliability, making it suitable for environmental monitoring and automation applications. As a result, it is widely used in weather stations, smart home systems, greenhouse monitoring, HVAC systems, and educational electronics projects. Because the module includes the required pull-up resistor, interfacing with microcontrollers becomes simple and straightforward. Furthermore, only three connections are required: VCC, GND, and Data Output. The sensor operates from a wide voltage range of 3.3V to 5.5V DC, ensuring compatibility with Arduino, Raspberry Pi, ESP32, STM32, NodeMCU, and other development boards. Moreover, readily available libraries and example codes allow quick integration into projects. The DHT11 utilizes advanced digital signal acquisition technology and dedicated temperature-humidity sensing techniques to ensure accurate and dependable measurements. 🔹 Key Features Measures temperature and humidity simultaneously Calibrated digital signal output Low power consumption High reliability and long-term stability Capacitive humidity sensing technology Built-in pull-up resistor on module Compatible with Arduino, ESP32, Raspberry Pi, and STM32 Simple 3-wire interface Easy integration into IoT projects Compact and lightweight design 🔹 Technical Specifications Sensor Model: DHT11 Operating Voltage: 3.3V – 5.5V DC Output Type: Digital Serial Output Humidity Measurement Range: 20%RH – 90%RH Humidity Accuracy: ±5%RH Humidity Resolution: 1%RH Temperature Measurement Range: 0°C – 50°C Temperature Accuracy: ±2°C Temperature Resolution: 1°C Sampling Rate: 1Hz (One Reading Per Second) Long-Term Stability: < ±1%RH/Year Interchangeability: Fully Interchangeable Sensor Technology: Capacitive Humidity Sensor + Thermistor 🔹 Pin Configuration Pin 1 (VCC): 3.3V – 5.5V DC Power Supply Pin 2 (DATA): Digital Serial Data Output Pin 3 (GND): Ground 🔹 Applications This sensor module is suitable for: Arduino projects Raspberry Pi projects ESP32 projects IoT systems Weather monitoring stations Smart home automation Greenhouse monitoring HVAC control systems Environmental monitoring Educational electronics projects 🔹 Package Includes 1 × DHT11 Digital Temperature and Humidity Sensor Module
5V 1A DC Power Supply Adapter – High-Quality Regulated Charger with 1-Year Warranty
[Adaptor Power Supply] The 5V 1A DC Power Supply Adapter is a high-quality, reliable, and efficient adapter designed to deliver stable 5-volt output for a wide range of low-power electronic devices. Built with superior components and advanced protection circuitry, this adapter ensures smooth and consistent power delivery, making it ideal for LED projects, small routers, USB-powered devices, DIY electronics, speakers, and more. Featuring overload, short-circuit, and over-voltage protection, this adapter guarantees safe operation and long-term durability. Its compact and lightweight design makes it perfect for both home and office use. Backed by a 1-year warranty, this 5V 1A adapter is your trusted choice for replacing or upgrading your power supply. ✅ Features High-quality 5V 1A DC power adapter for low-power electronic devices Provides stable and regulated 5V output Ideal for LED strips, routers, audio devices, DIY projects, and small gadgets Built-in overload, short-circuit, and over-voltage protection Durable build quality ensures long-lasting performance Compact, lightweight, and energy efficient Perfect replacement adapter for various 5V electronic appliances Comes with a 1-year warranty for hassle-free use Specifications:- Input – 100-240 VAC 50/60Hz Category – Switch Mode Power Adaptor (SMPS) Output Type – DC Output – 5Volts 1Amp * Product Images are shown for illustrative purposes only and may differ from actual product.
Foxen 12V 3A BIS Approved Power Adapter – High-Quality DC Power Supply with 1-Year Warranty
[Adaptor Power Supply] The Foxen 12V 3A BIS Approved Power Adapter is a premium-quality DC power supply designed to deliver safe, stable, and efficient performance for a wide range of electronic devices. Certified by BIS (Bureau of Indian Standards), this adapter meets all safety and quality benchmarks, making it a trusted choice for LED strips, CCTV cameras, WiFi routers, speakers, set-top boxes, and DIY electronics projects. With advanced protection features including overload, short-circuit, and over-voltage protection, the Foxen adapter ensures long-lasting reliability for your devices. It comes with a 1-year warranty, giving you complete peace of mind. Built using high-grade components, this adapter offers consistent 12V 3A regulated output, strong durability, and efficient power delivery suitable for home, office, and industrial use. ✅ Features BIS Approved 12V 3A DC power adapter for superior safety Suitable for LED strips, CCTV cameras, routers, speakers, and DIY electronics Delivers stable 12V regulated output for smooth and reliable performance Built-in overload, short-circuit, and over-voltage protection High-quality components ensure long life and safe operation Comes with 1-year warranty for worry-free use Strong build quality with long cable for convenient installation Ideal as a replacement adapter for home, office, and industrial devices Specifications:- Input – 100-240 VAC 50/60Hz Category – Switch Mode Power Adaptor (SMPS) Output Type – DC Output – 12Volts 3 Amp Package Includes: 1 x Foxen 12V 3A BIS Approved Power Adapter – High-Quality DC Power Supply * Product Images are shown for illustrative purposes only and may differ from actual product.
19V 2.1A DC Power Supply Adapter Good Quality with 1 Year Warranty
[Adaptor Power Supply] The 19V 2.1A DC Power Supply Adapter is a premium-quality regulated charger designed to deliver stable, efficient, and reliable power for a wide range of electronic devices. With a precise output of 19 volts and 2.1 amps, this adapter is perfect for laptops, LCD/LED monitors, routers, CCTV systems, mini PCs, and other 19V-powered equipment. Built with high-grade components and advanced SMPS technology, this power adapter ensures consistent voltage output with low ripple and excellent load regulation. It protects your devices with built-in over-voltage, over-current, short-circuit, and over-temperature protection, enhancing safety and extending device lifespan. The adapter features a durable enclosure, strong output cable, and standard DC connector, making it an ideal replacement or spare charger for home, office, and professional use. Backed by a 1-year warranty, this charger guarantees dependable performance and long-term reliability. ⭐ KEY FEATURES ✔ Output Voltage: 19V DC✔ Output Current: 2.1A (Stable Regulated Output)✔ High-Quality SMPS Design – Efficient & low heat✔ Built-in Over-Voltage, Over-Current & Short-Circuit Protection✔ Suitable for laptops, monitors, routers, CCTV & electronic devices✔ Compact, lightweight & portable design✔ 1-Year Manufacturer Warranty 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 19V Output Current: 2.1A Power Output: ~40W Connector Type: Standard DC Plug (as per variant) Technology: Switching Mode Power Supply (SMPS) Protection: Over-voltage, over-current, short-circuit, thermal Warranty: 1 Year 📦 PACKAGE INCLUDES 1 × 19V 2.1A DC Power Supply Adapter
Out of stock24V 1.5A DC Power Supply Adapter Good Quality with 1 Year Warranty
[Adaptor Power Supply] The 24V 1.5A DC Power Adapter is a premium-quality SMPS-based regulated power supply designed to deliver a stable and reliable 24V DC output at 1.5 amps. Supporting a wide AC input range of 100–240V, this adapter works seamlessly with Indian power sockets without requiring any plug converter. Built with advanced switch-mode power supply (SMPS) technology, this adapter offers high efficiency, low ripple, low interference, and excellent voltage regulation. It ensures smooth and safe operation for sensitive electronic devices. Equipped with short-circuit, over-voltage, and over-current protection, the adapter protects both your equipment and the power supply from electrical damage. Its compact, lightweight, and center-positive design makes it perfect for continuous indoor use. Ideal for powering CCTV cameras, routers, networking equipment, LED lighting systems, access control systems, industrial electronics, and DIY projects, this adapter delivers high reliability and long-term performance, backed by a 1-year warranty. ⭐ KEY FEATURES ✔ Output: 24V DC, 1.5A stable regulated supply✔ Wide Input Range: AC 100–240V, 50/60Hz✔ SMPS Technology – High efficiency & low heat✔ Built-in Short Circuit, Over-Voltage & Over-Current Protection✔ Center Positive Output✔ Indian Plug Design – No converter required✔ Compact, lightweight & portable✔ Low ripple, low noise & high reliability✔ 1-Year Warranty 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 24V Output Current: 1.5A Output Power: 36W (Approx.) Output Type: DC, Single Output Polarity: Center Positive Category: Switch Mode Power Adapter (SMPS) Efficiency: High, low energy consumption Warranty: 1 Year 🎯 APPLICATIONS CCTV cameras & DVR systems Routers & networking equipment LED strips & lighting systems Access control systems Industrial control panels DIY electronics & embedded projects 📦 PACKAGE INCLUDES 1 × 24V 1.5A DC Power Supply Adapter * Product Images are shown for illustrative purposes only and may differ from actual product.
12V 1.5A DC Power Supply Adapter With One Year Warranty
[Adaptor Power Supply] The 12V 1.5A DC Power Supply Adapter is a premium-quality SMPS-based regulated charger designed to deliver a stable and reliable 12V DC output at 1.5 amps for a wide range of electronic devices. Supporting a wide AC input range of 100–240V, this adapter works perfectly with Indian power sockets without the need for any plug converter. Built using advanced switch-mode power supply (SMPS) technology, it provides high efficiency, low ripple, low interference, and consistent voltage regulation. The adapter includes built-in short-circuit, over-voltage, and over-current protection, ensuring maximum safety for both the connected equipment and the power supply. Its compact, lightweight, and center-positive design makes it ideal as a replacement or spare power adapter for continuous indoor use. Perfect for CCTV cameras, routers, networking devices, LED lighting systems, access control units, and DIY electronics projects, this adapter offers high reliability, low fault rate, and energy-efficient performance. ⭐ KEY FEATURES ✔ Output: 12V DC, 1.5A stable regulated supply✔ Wide Input Range: AC 100–240V, 50/60Hz✔ SMPS Technology – High efficiency & low heat✔ Built-in Short Circuit, Over-Voltage & Over-Current Protection✔ Center Positive Output✔ Indian Plug Design – No converter required✔ Compact, lightweight & portable✔ Low ripple, low noise & high reliability✔ Energy efficient with low power consumption 🔧 TECHNICAL SPECIFICATIONS Input Voltage: AC 100–240V, 50/60Hz Output Voltage: DC 12V Output Current: 1.5A Output Power: 18W (Approx.) Output Type: DC, Single Output Polarity: Center Positive Category: Switch Mode Power Adapter (SMPS) Efficiency: High, low energy consumption 🎯 APPLICATIONS CCTV cameras & DVR systems Routers & networking equipment LED strips & lighting systems Access control systems Audio / video devices DIY electronics & embedded projects 📦 PACKAGE INCLUDES 1 × 12V 1.5A DC Power Supply Adapter (SMPS, Indian Plug) * Product Images are shown for illustrative purposes only and may differ from actual product.
DS3231 RTC Memory Module Precise Real Time Clock I2C-AT24C32
[Clock Module] The DS3231 RTC Real Time Clock Module is a precision timing module designed to provide accurate date and time information even when the main system power is unavailable. It features the highly accurate DS3231 RTC IC along with an onboard AT24C32 EEPROM memory chip for storing user data. In addition, the module includes a built-in temperature-compensated crystal oscillator (TCXO), which significantly improves timekeeping accuracy compared to conventional RTC modules. As a result, it offers excellent long-term stability with minimal drift. Because of its battery backup capability, the RTC continues to maintain accurate time and calendar information during power outages. Furthermore, the module automatically manages switching between the main power source and backup battery. The onboard AT24C32 EEPROM provides non-volatile storage for user settings, calibration values, and project data. Moreover, the module communicates through the standard I2C interface, making integration simple with Arduino, Raspberry Pi, ESP32, STM32, NodeMCU, and other microcontroller platforms. The DS3231 keeps track of seconds, minutes, hours, day, date, month, and year while automatically compensating for leap years up to the year 2100. ⚠️ Note: CR2032 backup battery is not included. 🔹 Key Features High-accuracy DS3231 RTC IC Built-in temperature-compensated crystal oscillator (TCXO) Integrated AT24C32 EEPROM memory Battery backup support Automatic leap-year compensation Two programmable alarms Programmable square-wave output Digital temperature sensor output I2C communication interface Low power consumption Excellent long-term timekeeping stability Compatible with Arduino, ESP32, Raspberry Pi, and STM32 🔹 Technical Specifications RTC IC: DS3231 EEPROM IC: AT24C32 Communication Protocol: I2C Operating Voltage: 3.3V – 5V DC Time Format: 12-Hour / 24-Hour Calendar Support: Day, Date, Month, Year Leap Year Compensation: Valid Up To 2100 Alarm Functions: 2 Programmable Alarms Square Wave Output: Programmable Temperature Sensor Accuracy: ±3°C Backup Battery: CR2032 (Not Included) Data Storage: 32Kb EEPROM (AT24C32) Low Power Operation: Yes 🔹 Pin Configuration VCC – Power Supply (3.3V – 5V) GND – Ground SDA – I2C Data Line SCL – I2C Clock Line Arduino UNO Connection SDA → A4 SCL → A5 VCC → 5V GND → GND 🔹 Applications This RTC module is suitable for: Arduino projects Raspberry Pi projects ESP32 projects Data loggers Digital clocks IoT systems Automation systems Time-stamped monitoring systems Industrial controllers Embedded electronics projects 🔹 Package Includes 1 × DS3231 RTC Real Time Clock Module with AT24C32 EEPROM
RTC Real Time Clock DS1307 I2C IIC Module for Arduino
[Clock Module, Sensors] This is Tiny RTC Real Time Clock DS1307 I2C IIC Module for Arduino. It contains a DS1307 real-time clock IC with a backup battery. It’s one of the easiest to use RTCs out there, with Arduino and other libraries or simply use I2C commands to set and retrieve the time and date. Includes a lithium coin cell battery which should be good for four years at least. Along with the DS1307 real-time clock, the module also has an Atmel 24C32 EEPROM chip which is handy for storing data without worrying about power loss. There is also space on the board to solder your own DS18B20 temperature sensor. This battery-powered clock allows you to keep a reasonably accurate time even when your Arduino is powered off. It is very useful in data logging and other time-sensitive applications. The device uses I2C to communicate with your Arduino. Features : Two-wire I2C interface Hour: Minutes: Seconds AM/PM Leap year compensation Accurate calendar up to the year 2100 Consumes Less than 500nA in Battery-Backup 1Hz output pin 56 Bytes of Non-volatile memory available to the user 4KB of serial electrically erasable and programmable read-only memory (EEPROM) Embed DS18B20 temperature sensor interface with the pull-up resistor.