Mini LCD Digital Thermometer with Probe The Mini LCD Digital Thermometer with Probe is designed with a black plastic shell, LCD screen display, measuring temperature by two temperature sensors , 38.2" length cable with an integrated probe. It can show centigrade and Fahrenheit. Come with a suction cup for easy fixing on some places which you want to put on the suction base, LCD display , clock function, and button cell powered (not included here). Widely used in air-conditioning, iceboxes, icehouse, cars, houses, etc. Explore the extensive collection for Sensor Kits . Applications: Fish Tank/Aquarium Temperature Monitor Kitchen Thermometer Temperature monitoring system Air Conditioner

MLX90614ESF Infrared IR Temperature Sensor Module The MLX90614ESF is an infrared thermometer for non-contact temperature measurements. Both the IR-sensitive thermopile detector chip and the signal conditioning ASIC are integrated into the same TO-39 can. Integrated MLX90614 GY-906 is a low noise amplifier, 17-bit ADC, and powerful DSP unit thus achieving high accuracy and resolution of the thermometer. The user can configure the digital output to be PWM. As a standard temperature sensor , the 10-bit PWM is configured to continuously transmit the measured temperature in the range of -20 to 120 °C, with an output resolution of 0.14 °C. Read our blog on infrared sensors working and explore how infrared sensors work. Features: Infrared temperature measurement, no contact is needed. 0.14°C accuracy with 17-bit ADC and DSP. PWM output for -20°C to 120°C range. Operates on 3.3V-5V with 2mA current. I2C communication, microcontroller compatible. Combines a signal-filtering ASIC with a thermopile detector. Incorporates the IR-sensitive thermopile detector chip and signal Conditioning ASIC into a single TO-39 container.

Peltier with Heatsink and Fan The DIY kit is a semiconductor cooling kit that uses a TEC1-12706 Thermoelectric Cooler Peltier Module. The kit comes with 1 heat sink and 1 fan. The fan acts as a radiator. This is attached to the heat sink. The TEC1-12706 thermoelectric Peltier module is attached to the other side of the heat sink . This kit is well suited for people who just want to get cold fast. Simply connect to a 12V 5A+ power supply and you will see frost appear on the aluminum plate within a minute FEATURES: Using the GL style of the refrigerator effectively releases the thermal deformation ability of the refrigerator produce at work. Small volume, does not occupy space, installation is simple. This semiconductor cooler is a form of solid-state cooling that incorporates both semiconductor technologies and electronic assembly techniques. It can be used as a Pet Air Conditioner (chicken, little dog, etc.) or a little fridge.

PT100 RTD 3-Wire Temperature Sensor Probe 1m Range -70 to 300°C - 7Semi The 7Semi PT100 RTD 3-Wire Temperature Sensor Probe is a precision-engineered solution for high-performance temperature sensing across demanding environments. Featuring a JUMO PCA 1.2003.1EG platinum-chip and adhering to IEC 60751:2008 standards (Class F0.15 / Class A), this sensor guarantees highly accurate and stable readings. With a wide measurement range of -70°C to +300°C, a durable stainless steel 2-inch probe, and a flexible 1-meter cable, it ensures reliable operation in industrial automation, chemical processing, laboratory, and HVAC applications. Its waterproof design and platinum-based RTD core make it an ideal choice for both indoor and harsh outdoor setups requiring long-term stability and precision. Features: High-Precision Sensor: JUMO PCA 1.2003.1EG platinum-chip ensures exceptional accuracy. Wide Temperature Range: Operates reliably from -70°C to +300°C. Class A Accuracy: Conforms to IEC 60751:2008 standards (F0.15 tolerance). Durable Build: 2-inch stainless steel probe resists corrosion and harsh environments. Flexible Integration: 1-meter insulated cable for easy installation. Stable Long-Term Performance: Platinum design ensures minimal drift over time. Cost-Effective Design: Built for consistent quality and scalability. Versatile Applications: Ideal for industrial, chemical, lab, HVAC, and food processing sectors.

Radiomaster Boxer Portable 2.4GHz ELRS Drone Transmitter The Radiomaster Boxer Portable 2.4GHz ELRS Drone Transmitter is a high-performance drone remote designed for pilots who need reliability, comfort, and precision. This compact yet powerful drone radio transmitter comes in ExpressLRS and 4-in-1/CC2500 versions, featuring an industry-first fabric handle, standardized button layout, and a built-in cooling fan (for ELRS version). With full-sized V4.0 Hall Effect gimbals—upgradeable to AG01—alongside a versatile 6-position switch and low-profile controls, it ensures smooth and accurate flight control. The redesigned SD card slot with a pre-loaded card, external module power slots, and QC3.0 fast charging support make it both modern and convenient. Complete with a carry case and gimbal protector, the Radiomaster Boxer is the ultimate drone controller for enthusiasts and professionals alike. Features: Preinstalled EdgeTX firmware QC3.0 supports quick charging at a maximum of 2.0A. RadioMaster standardized the button arrangement. Available with built-in ExpressLRS version. Versatile 6-position switch for accessing flight modes Adjustable and removable T-shaped antenna. Industry-first cloth handle for enhanced portability. Internal ELRS module capable of 1000Hz refresh rate. Redesigned SD card slot includes a pre-loaded SD card. Internal module cooling fan built-in (ELRS version). The battery cover contains external module power slots. EdgeTX Operating System

RS485 Industrial Grade Temperature & Humidity Sensor Probe -7Semi The RS485 Industrial Grade Temperature & Humidity Sensor Probe from 7Semi is a robust and high-precision solution designed for demanding industrial applications. Featuring the advanced SHT45 sensor, it delivers accurate and stable environmental data through a reliable RS485 Modbus RTU interface, making it ideal for integration into SCADA systems, PLCs, HVAC setups, and environmental monitoring platforms. Its durable aluminum alloy housing is waterproof, breathable, and dust-proof, ensuring consistent performance even in harsh conditions. With a wide temperature range of -40°C to 125°C and 0% to 100% RH humidity measurement, this sensor is built for extreme environments. The included 1-meter cable allows for convenient installation in remote or difficult-to-access locations. Features: High-Accuracy Sensing: Built on the sophisticated SHT45 sensor for precise temperature and humidity readings. RS485 Modbus RTU Output: Enables straightforward interaction with industrial control systems and data recorders. Wide Operating Range: Measures temperature from -40°C to 125°C, humidity from 0% to 100% RH. Durable Construction: Aluminum alloy casing with waterproof, dust-proof, and breathable design Long-Term Stability: Optimized for continuous usage in difficult conditions without losing accuracy. Flexible Power Supply: Supports 9-60V DC input, compatible with many industrial configurations. Configurable Communication: DIP switch for Modbus address and baud rate change. 2-Meter Cable Length: Allows for flexible mounting and installation in various locations.

SCD40 I2C CO? Temperature & Humidity Sensor Breakout Module - 7Semi The 7Semi SCD40 is a compact sensor breakout based on Sensirion’s advanced photoacoustic NDIR technology. It accurately measures CO? concentration from 400 ppm to 40,000 ppm, along with ambient temperature and humidity. Ideal for air quality monitoring, HVAC systems, and IoT applications. It communicates over the I²C interface and is compatible with most microcontrollers. With low power consumption, long-term stability, and minimal recalibration requirements, the SCD40 is well-suited for portable and embedded systems requiring reliable environmental data. Features Photoacoustic CO? Sensing: Uses advanced photoacoustic infrared technology for high-precision CO? measurement. 3-in-1 Environmental Monitoring: Simultaneously tracks CO? levels, temperature, and humidity for a complete atmospheric overview. Wide CO? Detection Range: Measures concentrations from 400 ppm to 40,000 ppm, with optimal accuracy in the 400–2000 ppm range. High Accuracy: Offers a precision of ±(40 ppm + 5%), making it ideal for critical monitoring applications. Low Power Consumption: Consumes only 17 mA at 5s intervals and 0.5 mA at 5-minute intervals, perfect for battery-powered projects. Plug-and-Play Ready: Factory-calibrated and ready for immediate use—no manual calibration required. I2C Interface: Compatible with Arduino, Raspberry Pi, ESP32, STM32, and other popular microcontrollers via I2C. Compact Design: Small, robust module fits easily into embedded systems and space-limited enclosures. SCD40 carbon dioxide sensor Breakout I2C Arduino Connections

SCD41 High Accuracy CO2 Temperature and Humidity Sensor Breakout I2C - 7Semi The 7Semi SCD41 is a compact, high-accuracy sensor module designed for real-time CO?, temperature, and humidity monitoring. Powered by Sensirion’s advanced photoacoustic sensing technology, it delivers precise air quality measurements across a wide range of conditions. Its built-in I2C interface ensures easy integration with Arduino, Raspberry Pi, ESP32, and other microcontrollers. Ideal for indoor air quality systems, HVAC, smart agriculture, and IoT applications, the SCD41 offers fully calibrated outputs and compensates CO? data with onboard temperature and humidity sensing. With low power consumption and a small footprint, this module is perfect for both fixed installations and portable, battery-powered devices.

Seeed Studio XIAO Nordic nRF52840 Sense Module The Seeed Studio XIAO Nordic nRF52840 Sense Module is a compact yet powerful development board designed for AIoT and sensor-rich applications. Powered by the advanced Nordic nRF52840 chipset, it offers Bluetooth 5.0 connectivity with low energy consumption, making it highly efficient for IoT, wearables, and smart devices. This versatile nRF52840 module integrates an onboard IMU and PDM microphone, enabling motion tracking and audio input for embedded Machine Learning projects. Its small form factor, rich features, and low-power performance make it an excellent choice for developers working on next-generation AI and IoT solutions. Features: Versatile Microcontroller: Incorporates the Nordic nRF52840 chip with FPU, working up to 64 MHz, mounted several development ports, supported by Arduino and CircuitPython. Wireless Capabilities: Support Bluetooth 5.0, BLE functionalities with integrated antenna, and NFC connectivity. Elaborate Power Design: Uses only 5 μA in deep sleep mode and supports lithium battery charge management. Advanced onboard functionality: Add a digital microphone and a 6-axis IMU to the compact board for embedded machine learning applications. Thumb-sized Design: 21 x 17.8mm, Seeed Studio XIAO series classic form-factor, appropriate for wearable devices. Applications: Small and flexible wearable gadget. Wi-Fi/Bluetooth wireless connection project Embedded Machine Learning Project IoT and TinyML AI applications. Perfect for mini-Arduino projects. XIAO Nordic nRF52840 Sense Module Pinout Diagram

SenseCAP S1000 V2 Weather Sensor – 10-in-1 Environmental Sensor with CO₂, PM2.5, PM10 Monitoring -Seeed Studio The SenseCAP S1000 V2 10-in-1 environmental sensor delivers precise, real-time monitoring of 10 key parameters in a single, integrated device. It measures air temperature, humidity, barometric pressure, light intensity, precipitation, wind speed, wind direction, CO₂, PM2.5, and PM10 (air quality), making it a complete solution for outdoor, agricultural, and smart city applications. With an industrial-grade design, IP66-rated enclosure, and an operating temperature range from -40°C to +85°C, it ensures durability and reliability even in the harshest environments. Its output interfaces (RS485 MODBUS-RTU / SDI-12) enable seamless integration into existing monitoring systems and IoT platforms. Engineered for high performance and low maintenance, the S1000 features a thermostatically controlled heating system for cold climates, ultrasonic wind sensors with no moving parts for long-lasting use, and radiation shields for accurate measurements. It comes with a 3m cable and pole-mount accessories for easy deployment. To guarantee consistent accuracy and performance, the sensor undergoes six rigorous reliability tests, including wind tunnel calibration, high/low temperature trials, vibration, waterproofing, and structural validation. Compact yet powerful, the SenseCAP S1000 stands as a trusted 10-in-1 environmental sensor that measures CO₂, PM2.5, and PM10 (air quality) with exceptional precision and reliability. Features: 10-in-1 Measurement: Monitors air temperature, relative humidity, barometric pressure, light intensity, precipitation intensity, wind speed, wind direction, CO₂, PM2.5, and PM10 in a single device. Industrial-Grade Design: Operating temperature from -40°C to +85°C, IP66-rated waterproof and dustproof housing, built for outdoor environments. Multiple Output Interfaces: Supports RS485 (MODBUS-RTU) and SDI-12 for seamless integration with monitoring and IoT systems. Heating System for Cold Climates: Thermostatically-controlled independent power supply ensures stable operation in extreme cold. Durable Components: Includes a 3m pole-mount cable, radiation shields for accurate measurements, and ultrasonic wind sensors with no moving parts. Applications: Smart Agriculture, Smart City, Power Transmission, Renewable Energy, Transportation, and Traffic Today, data on localized weather, known as microclimates, represents the next frontier in more precise and accurate weather forecasting. As a result, the collection of weather data is becoming smaller and more gridded. In light of this, weather sensors, which are the most convenient way to collect weather data, are becoming increasingly popular. This SenseCAP ONE S1000 10-in-1 Compact Weather Sensor allows you to gather and monitor environmental and weather data, which is important in a variety of application situations, such as smart city projects, among others. It is IP66 rated and has high durability to survive even the harshest outdoor conditions. In place of a standard mechanical 3-cup or vane anemometer, wind speed and direction sensors employ ultrasound. The advantage of employing ultrasonic sensors is that minimizing the number of movable elements makes the sensor less likely to break, making maintenance easier without sacrificing precision or labor. SenseCAP ONE is a series of all-in-one small weather sensors that measure up to ten weather parameters simultaneously: air temperature, air humidity, atmospheric pressure, light intensity, wind speed, wind direction, precipitation, PM 2.5, PM 10, and CO2. The SenseCAP ONE series employs the RS485 (MODBUS-RTU) / SDI-12 communication protocol. As a result, the SenseCAP ONE tiny weather sensor is compatible with any data logger that supports RS485 (MODBUS-RTU) or SDI-12. Hardware Overview