SenseCAP S2120 8-in-1 LoRaWAN Weather Sensor Delivers 8 Key Weather Metrics - Seeed Studio The SenseCAP LoRaWAN S2120 Weather Station is a high-precision LoRaWAN 8-in-1 weather sensor designed to capture and transmit key environmental parameters, including air temperature, humidity, wind speed and direction, rainfall intensity, light intensity, UV index, and barometric pressure. Supported by global LoRaWAN networks, it ensures reliable long-range data transmission with minimal power consumption. Engineered for durability and versatility, this hyperlocal outdoor weather station is ideal for gardens, agriculture, meteorology, and urban environmental monitoring. With built-in Bluetooth for fast OTA configuration and remote management, it offers both convenience and low maintenance costs, making it an efficient and long-lasting solution for professional and personal environmental monitoring needs. Features: Scan-and-Play Simplicity, Easy Configuration Over Bluetooth in About One Minute Built-in Bluetooth eliminates the need for time-consuming setting tasks, allowing those with little or no technical expertise to easily get started with weather detection. Powerful SenseCAP Mate App Data Visualization and Remote Device Management Compatibility with Many Networks and Platforms Easily interacts with existing global LoRaWAN networks. Other Features: 8-in-1 Weather Monitoring – Measures air temperature, humidity, wind speed, wind direction, rainfall intensity, light intensity, UV index, and barometric pressure in one device. LoRaWAN Connectivity – Uploads real-time data reliably over worldwide LoRaWAN networks. Quick Bluetooth Configuration – Set up in just 1 minute with the SenseCAP Mate App; supports remote management of real-time and historical data. Ultra-Low Power Consumption – Powered by a 0.5W solar panel with 3 × standard 1.5V AA dry batteries, lasting up to 2 years. Expandable Battery Capacity – Option to add an external compartment for 6 batteries, doubling service life. Durable Outdoor Performance – Resistant to high UV exposure, heavy rainfall, dust, and other harsh conditions. Built-In Remote Management – OTA configuration and device management through SenseCAP Mate App and SenseCAP Portal. Easy Installation & Flexible Layout – Includes poles, mounting stand, and accessories for fast deployment in diverse environments. How to Select a Gateway: LoRaWAN network coverage is essential when employing sensors, and there are two LoRaWAN network possibilities. Option 1: Sensors operate in areas covered by the Helium Network. Option 2: Sensors operate in a typical LoRaWAN network, such as The Things Network, Loriot, Chirpstack, etc. Applications: Backyard & Gardens: To safeguard your family, measure the air temperature and humidity in the backyard and garden, as well as the rainfall intensity and UV index. Smart Agriculture: Allow farmers to acquire climate data and information in real time, implement scientific management techniques in production, and increase agricultural output capacity and levels. Meteorology: Support applications in the professional meteorological sector, such as immediately reflecting the changes of various abnormal meteorological conditions in the field of traffic and transportation to give real-time scientific basis data for traffic management departments. Urban Weather: Provide real-time data for city squares, parks, scenic regions, golf courses, and other urban locations. Field Deployment SenseCAP S2120 8-in-1 LoRaWAN Weather Sensor Diagram How to Deploy

Sensirion SHT30-DIS I2C humidity & temperature sensor SHT3x-DIS is the next generation of Sensirion’s temperature and humidity sensors. It builds on a new CMO sensor chip that is at the heart of Sensirion’s new humidity and temperature platform. The SHT3x-DIS has increased intelligence, reliability and improved accuracy specifications compared to its predecessor. Its functionality includes enhanced signal processing, two distinctive and user selectable I2C addresses and communication speeds of up to 1 MHz. The DFN package has a footprint of 2.5 x 2.5 mm2 while keeping a height of 0.9 mm. This allows for integration of the SHT3x-DIS into a great variety of applications. Additionally, the wide supply voltage range of 2.4 V to 5.5 V guarantees compatibility with diverse assembly situations. All in all, the SHT3x-DIS incorporates 15 years of knowledge of Sensirion, the leader in the humidity sensor industry. Pin description: 1 Vin this is the power pin 2 GND common ground for power and logic I2C Logic pins 3 SCL I2C clock pin, connect to your microcontrollers I2C clock line 4 SDA I2C data pin, connect to your microcontrollers I2C data line 5 ADR This is the I2C address selection pin 6 RST Hardware reset pin 7 ALR Alert/Interrupt output

SHT20 I2C Humidity and Temperature Sensor Probe (Plastic) -7Semi The 7Semi SHT20 I2C Humidity and Temperature Sensor Probe (Plastic) is a robust and precise sensor designed for reliable ambient condition monitoring. Featuring Sensirion’s cutting-edge CMOSens SHT20 chip, it combines a capacitive humidity sensor, a high-precision band-gap temperature sensor, and integrated analog/digital signal processing in one compact module. Housed in a durable plastic and metal probe, it ensures consistent performance and long-term stability. Its I2C digital output simplifies integration with microcontrollers like Arduino, supported further by onboard pull-up resistors and a filter capacitor. The included 1-meter cable offers flexibility in installation, making it perfect for a wide range of applications such as environmental monitoring systems, industrial automation, agricultural greenhouses, and home automation projects. Features: Accurate and dependable: Environmental control, with a typical temperature precision of ±0.3°C and relative humidity accuracy of ±3% RH. Advanced CMOSens Technology: Combines sensors and signal processing on a single chip to improve performance and save power. I2C Digital Output Interface: Facilitates communication with popular microcontrollers such as Arduino, Raspberry Pi, and ESP32. Durable Probe Design: Made with high-quality plastic and metal materials to survive tough or varied circumstances. Broad Operating Range: It can withstand temperatures ranging from -40°C to 125°C and humidity ranging from 0% to 100% RH, making it appropriate for a wide range of applications. Built-in Pull-up Resistor and Filter Capacitor: Enables clear signal transmission and reliable performance in noisy electrical settings. Plug-and-Play Wiring: A clearly designated 4-wire interface (red: VCC, black: GND, yellow: SDA, green: SCL) allows for simple setup. Versatile applications: Include data recorders, HVAC systems, weather stations, greenhouses, laboratories, and smart farming solutions.

SHT20 MRS Type I2C Humidity and Temperature Sensor Probe -7Semi The SHT20 MRS Type I2C Humidity and Temperature Sensor Probe by 7Semi is a robust and precise sensing solution tailored for demanding environments. Utilizing advanced CMOSens technology, this sensor delivers highly accurate humidity and temperature measurements over a broad temperature range of -40°C to 125°C. It features a digital I2C interface, enabling seamless integration with microcontrollers and low-power operation. Housed in a stainless-steel breathable shell, the sensor is built to resist high pressure (up to 150 bar), extreme temperatures, and harsh chemical exposure. It comes factory-calibrated at multiple points for reliable readings and offers superior protection against dust and contaminants. With a 1-meter cable and Mini Round Shell connector, it ensures flexible and secure installation in tight or rugged spaces such as industrial pipelines, environmental test chambers, and hazardous locations. Features: Accurate and Stable Measurements: The CMOSens technology offers digital, linearized readings with little drift over time, and it supports temperatures ranging from -40°C to 125°C. Robust Metal Probe Construction: Stainless steel porous housing is resistant to high pressure, corrosion, and dust, making it perfect for long-term industrial applications. Advanced Breathable Shell Design: Provides high air permeability and a rapid humidity exchange rate while shielding inside electronics from dust and chemical contamination. Pre-calibrated and Digital Output: Fully factory-calibrated for humidity and temperature, with an I2C interface for seamless integration and low-power data transfer. High filtration efficiency: Precision pore diameters (5–120 microns) provide superior filtration, interception, and uniform dispersion performance. Exceptional Environmental Resistance: Reliable in difficult situations such as high humidity, heated drying operations, restricted spaces, vacuum chambers, and explosive conditions. Long-Term Durability: The anti-shedding design and superior material quality provide extended service life and consistent readings over time.

SHT40 I2C Humidity and Temperature Sensor Probe (Plastic) -7Semi The 7Semi SHT40 I2C Humidity and Temperature Sensor Probe (Plastic) is a high-precision, industrial-grade sensor designed for demanding environmental monitoring applications. Powered by the advanced Sensirion SHT40 CMOSens chip, this sensor delivers accurate temperature and humidity measurements with exceptional reliability—even in extreme conditions. Its robust hybrid housing, combining plastic and metal, ensures durability without compromising sensitivity. With a wide measurement range from -40°C to 125°C and 0–100% RH, it's perfectly suited for IoT systems, HVAC, agriculture, industrial automation, and more. The sensor's I2C interface supports multiple addresses, allowing effortless integration with platforms like Arduino. Pre-integrated components, including a 10k pull-up resistor and a 0.1 µF capacitor, simplify circuit design, while an internal heater with three configurable levels enhances performance in high-humidity settings by preventing condensation. Operating with a minimal power consumption of just 0.4 ?W, the 7Semi SHT40 probe is a dependable and efficient solution for accurate environmental sensing. Features: High-Precision Sensing: The newest CMOSens SHT40 chip provides precise temperature and humidity readings. Wide Measurement Range: Operates from -40°C to 125°C and 0% to 100% relative humidity, making it suited for a variety of environments. I2C Communication: Allows for the use of numerous preconfigured addresses, making embedded system integration simple and flexible. Power consumption: Low at only 0.4 ?W, making it excellent for battery-powered and energy-sensitive applications. Built-in Heater Function: Three heating levels help avoid moisture buildup and improve sensor reliability in damp environments. Robust Construction: The durable plastic and aluminum probe housing ensures mechanical stability and long-lasting performance. Integrated Components: Includes 10k pull-up resistor and 0.1 ?F filter capacitor to simplify circuit design. Microcontroller Compatibility: Easily connects to Arduino and other development boards for rapid prototyping and deployment.

SHT40 Temperature and Humidity Probe Sensor - 7Semi The 7Semi SHT40 Temperature and Humidity Probe Sensor is a high-precision environmental sensing solution, ideal for industrial and professional applications. Encased in a compact stainless-steel porous housing, it offers robust durability in harsh and high-pressure environments such as pipelines, HVAC systems, and test chambers. Featuring ultra-low power consumption, 16-bit resolution, and a digital I2C output (default address 0x44), the SHT40 provides reliable, responsive measurements suitable for continuous operation. Each unit is individually calibrated, tested, and traceable via a unique serial number, ensuring exceptional quality and consistency. An integrated breathable membrane protects against dust, moisture, and corrosive agents without compromising airflow, making it suitable even for condensing and explosive environments. With a variable power heater and proven long-term stability, the SHT40 excels in critical fields like medical equipment, automation, and industrial monitoring. Digital Humidity and Temperature Sensor Probe I2C Interfacing with MCU Circuit Diagram Features: High Accuracy & Resolution: 16-bit digital output for precise humidity (0–100% RH) and temperature (-40°C to 125°C) measurements Ultra-Low Power Consumption: Consumes as little as 80 nA in idle mode, ideal for battery-powered applications Robust Environmental Resistance: Operates reliably in corrosive, acidic, high-pressure (up to 150 bar), and condensing environments Breathable Protective Shell: Stainless-steel porous housing enables fast air exchange while shielding internal components Reliable I2C Interface: Preconfigured at address 0x44 for seamless integration into existing systems Internal Variable Heater: Adjustable heater enhances measurement accuracy in fluctuating humidity conditions NIST Traceable Calibration: Guarantees industry-standard accuracy and long-term stability Versatile Connectivity: Equipped with Mini Round Shell (MRS) connector and a 1-meter cable for flexible deployment Anti-Dust and Anti-Corrosion Properties: Ensures long operational life even in polluted or chemically active environments Ideal for Extreme Conditions: Flawless operation in vacuum chambers, explosive zones, drying processes, and extreme humidity/temperature areas

SHT41 16bit I2C Digital Humidity and Temperature Sensor Probe -7Semi The SHT41 16bit I2C Digital Humidity and Temperature Sensor Probe by 7Semi is a cutting-edge solution for high-accuracy environmental monitoring. Engineered for precision, it offers outstanding temperature and humidity readings with an accuracy of ±0.2°C and ±1.8% RH respectively. Designed for durability, it features a stainless-steel porous housing and a waterproof yet breathable membrane that achieves an IP65 rating—ensuring protection without sacrificing measurement integrity. The sensor communicates via a low-power I2C interface (default address 0x44), making it suitable for embedded and battery-operated applications. With built-in NIST traceability, full calibration, and variable power heating, the SHT41 excels even in harsh environments like condensing, high-pressure, or corrosive conditions. It’s the ideal choice for HVAC systems, weather stations, industrial automation, and sensitive medical-grade equipment. Features: Exceptional measurement Accuracy: ±0.2°C temperature and ±1.8% RH humidity provides consistent results in diverse situations. Wide Operating Range: Supports 0-100% relative humidity and temperatures ranging from -40°C to +125°C, making it appropriate for tough environmental applications. Advanced Protective Housing: The stainless-steel porous shell has pore diameters ranging from 5 to 120 microns, ensuring great filtering efficiency and durability. Integrated Heater with Variable Power Levels: Improves reliability in high humidity or condensation-prone environments. Waterproof and Breathable Membrane: Allows air and humidity to move through while preventing liquid ingress—ideal for high-moisture conditions. Digital I2C Interface (Address: 0x44): Provides rapid and stable communication with microcontrollers and embedded devices. Low power consumption: Suitable for portable and battery-powered solutions, with a typical 3.3V (1.7-3.6V range). NIST Traceable and Fully Calibrated: Each sensor is individually factory calibrated and tested, with a unique serial number tracing. Corrosion and High-Temperature Resistance: Works well in acidic, alkaline, dusty, and high-pressure conditions (up to 150 bar). Long-Term Stability and Durability: Performs consistently over time in severe and demanding situations. Seamless Integration: The Mini Round Shell (MRS) connector, combined with a 1-meter cable, allows for simple and dependable installation across multiple platforms.

SHT45 Digital Humidity and Temperature Sensor Probe - 7Semi The 7Semi SHT45 Digital Humidity and Temperature Sensor Probe is a high-precision sensor designed for accurate environmental monitoring in demanding conditions. It offers a temperature accuracy of ±0.1°C and a humidity accuracy of ±1% RH, making it ideal for applications in HVAC systems, weather stations, automation, medical instrumentation, and industrial processes. The sensor operates with a 16-bit digital output via I²C interface (address 0x44) and features a corrosion-resistant stainless-steel housing with a breathable membrane to protect against dust and moisture. Additionally, it includes a power-trimmed internal heater with three adjustable levels to ensure reliable performance in high humidity and condensing environments. Digital Humidity and Temperature Sensor Probe I2C Interfacing with MCU Circuit Diagram Features: High Accuracy: ±0.1°C temperature and ±1% RH humidity Wide Operating Range: Temperature: -40°C to +125°C; Humidity: 0–100% RH Low Power Consumption: Ideal for battery-powered applications I²C Interface: Pre-configured address 0x44 for easy integration Durable Design: Corrosion-resistant stainless-steel housing with breathable membrane Internal Heater: Three adjustable levels for operation in high humidity and condensing conditions Calibration: Factory calibrated with individual serial numbers for traceability

STC-3028 Digital Temperature Humidity Controller 110-220V The STC-3028 Digital Temperature Humidity Controller 110-220V is a digital temperature and humidity controller that can be used for various applications. It has a dual display and can be used with an AM2120 waterproof sensor. The device has a temperature range of -50?~110? and a refreshing frequency of 0.5s. It can switch between cool and heat modes and has a temperature calibration feature. The device is powered by AC 220V and has a 10A relay. It comes with a sensor probe and can control temperature and humidity at the same time. The device is suitable for use in various sensor control boxes, water heaters, freezers, fans, and refrigerators. Features Dual display for temperature and humidity readings Can be used with an AM2120 waterproof sensor Temperature range of -50?~110? Refreshing frequency of 0.5s Can switch between cool and heat modes Has a temperature calibration feature Powered by AC 110-220V Has a 10A relay Comes with a sensor probe Suitable for use in various applications such as sensor control boxes, water heaters, freezers, fans, and refrigerators Applications: Home fridges Water heaters Freezers Fans Sensor control boxes Refrigerators Dehumidifiers Electronic hobby kits

TEC1 12706 Peltier Module The TEC1-12706 6A Thermoelectric Cooler Peltier Module is the simple application of the Peltier Thermoelectric Effect. The Peltier module features 127 semiconductor couples in the area of 40 x 40mm which very effectively cools and heats up to 90°C. The thermoelectric cooler or TEC or Peltier module creates a temperature differential on each side. One side gets hot and the other side gets cool. They use to either warm something up or cool something down; above all, you can use either side. You can also take advantage of a temperature differential to generate electricity. A thermoelectric cooler (TEC) module is a semiconductor-based electronic component that functions as a small heat pump. By applying the DC power source to a TEC, heat will be transferred from one side of the module to the other. It creates a cold and hot side. They are widely useful in industrial areas, for example, computer CPUs, CCDs, portable refrigerators, medical instruments, and so on. Tips: Operating Temperature: 138 Degree C. Do not exceed Imax or Vmax when operating a module. Please carry out moisture protection options (sealing) in final application use. Life expectancy: 200,000 hours. Failure rate based on long-time testing: 0.2%. Read our blog Peltier module working principle. Applications: Computer CPUs CCDs Portable refrigerators Medical instruments Also check DIY semiconductor cooling kit that includes a TEC1-12706 Thermoelectric Cooler Peltier Module.