7Semi Analog LM35 Temperature Sensor Probe with 1M Waterproof Cable The 7Semi Analog LM35 Temperature Sensor Probe with 1M Waterproof Cable is a dependable temperature sensor probe designed for accurate and real-time temperature monitoring in electronics and automation projects. Based on the trusted LM35 temperature sensor, it delivers a precise analog output directly proportional to temperature at 10mV per degree Celsius, eliminating the need for complex calibration. The waterproof metal probe and 1-meter insulated cable make it perfect for harsh, humid, or submerged environments such as water tanks, weather stations, incubators, and industrial control systems. Unlike thermistors that require calibration or digital sensors that depend on protocols, this analog temperature sensor offers simple integration, stable performance, and consistent accuracy for Arduino, Raspberry Pi, IoT, and embedded applications. Features: Direct Kelvin Calibration: Produces 10mV per Kelvin, facilitating conversion to Celsius or Fahrenheit. High initial accuracy (±1°C at 25°C) without external calibration. Operates reliably from 450µA to 5mA, allowing for design flexibility. Low dynamic impedance (less than 1 Ohm) ensures little voltage change under changing load circumstances. Extended Temperature Sensing Range: Measures temperatures ranging from -40°C to +100°C, making it appropriate for low and moderate heat applications. No calibration required: provides an accurate and linear response right out of the box. Interface-Free Design: Unlike thermocouples, no signal conditioning or amplifiers are required. Simple to Implement: The two-terminal topology simplifies circuit design and PCB layout. LM35 Temperature Sensor Probe Pinout Diagram: LM335 Wiring with Arduino Connection Diagram: LM335 Temperature Sensor with Arduino Components Required An LM335 sensor A breadboard An arduino board Some jumper wires A 2k resistor Pin Connections Pin 1 is the Adjustable Pin (Adj). This allows us to calibrate the temperature sensor if more precise temperature is required. It is not needed for testing. Pin 2 is the output pin. Attach this pin to analog pin A0 of the arduino board and connect the 2KOhm resistor to the 5V pin of the arduino. Pin 3 is the ground pin and it connects to the ground (GND) terminal of the arduino.

7Semi MCP9808 I2C Temperature Sensor Breakout The 7Semi MCP9808 I2C Temperature Sensor Breakout is a precision I2C temperature sensor module designed to deliver accurate and reliable temperature measurements with minimal effort. Built around the high-accuracy MCP9808 temperature sensor IC, this breakout board provides easy digital temperature sensing through a standard I2C interface, making it ideal for projects where precise environmental monitoring is essential. It solves the challenge of interfacing analog temperature sensors with microcontrollers by offering a simple digital communication method that eliminates the need for complex calibration. This compact sensor module is highly compatible with popular development platforms like Arduino, Raspberry Pi, and other microcontrollers, offering stable performance and low power consumption. With its high accuracy and straightforward interface, it’s perfect for students, hobbyists, and professionals working on weather stations, HVAC systems, data loggers, thermal control systems, and indoor environmental monitoring projects. Its robust design ensures dependable readings across a wide range of applications, reducing development time and improving overall system reliability. Features: High-accuracy MCP9808 sensor IC with ±0.25 °C typical precision Wide operating temperature range from –40 °C to +125 °C High-resolution temperature readings with 0.0625 °C resolution Supports 2.7V to 5.5V power and logic levels for flexible compatibility I²C interface allows connection of up to 8 sensors on a single bus Compact breakout board for easy integration in embedded projects

7Semi PT100 RTD 3-Wire Temperature Sensor Probe The 7Semi PT100 RTD Temperature Sensor Probe is built for engineers and industrial users who need dependable, high-accuracy temperature monitoring across a wide operating range. Using a premium JUMO PCA 1.2003.1EG platinum-chip element, this probe follows the IEC 60751:2008 Class F0.15 (Class A) standard, ensuring precise and stable readings from -70°C to +300°C. Its platinum resistance design offers exceptional repeatability with minimal drift, making it a reliable choice for long-term process monitoring and industrial automation systems. Designed with a durable 2-inch stainless steel probe and a 3-metre insulated 3-wire cable, this PT100 sensor is ideal for harsh, wet, or corrosive environments. Whether used in chemical plants, HVAC systems, laboratory setups, industrial machinery, or temperature-controlled processing units, it delivers consistently accurate performance. This combination of precision, durability, and affordability makes it a smart upgrade for anyone looking for a high-accuracy industrial temperature sensor. Features: Designed with a wide operating range from -70°C to +300°C, making it suitable for demanding industrial and laboratory applications. Built with a JUMO PCA platinum-chip element that meets IEC 60751:2008 Class F0.15 (Class A) standards for high accuracy and stability. Equipped with a 2-inch stainless steel probe, offering long-lasting durability even in harsh or corrosive conditions. Comes with a 3-metre insulated 3-wire cable, allowing easy installation in remote or hard-to-reach areas. Utilises platinum resistance technology for excellent repeatability, low drift, and consistent output over time. Features a waterproof design, enabling reliable operation in moisture-rich environments. Offers a cost-effective, high-reliability solution suitable for automation systems, industrial processes, and precision monitoring tasks.

7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1m -70~300C The 7SEMI PT100 RTD Temperature Sensor Probe 2-wire 1 m (-70 ~ 300°C) (ES-13519) is a reliable temperature sensor designed to deliver accurate and stable readings across a wide temperature range. It uses a platinum PT100 RTD element, which is well known for precision and long-term consistency, making it suitable for both learning and professional applications. The sensor comes with a 1-meter cable and a sturdy stainless-steel probe that can handle demanding environments. Its simple 2-wire design makes it easy to connect with temperature controllers, data loggers, and microcontroller-based systems. Whether you’re working on industrial monitoring, laboratory experiments, or electronics projects, this PT100 probe offers a good balance of accuracy, durability, and ease of use. Features: Uses a PT100 platinum RTD element for accurate and stable temperature measurement Wide operating temperature range from -70°C to 300°C 2-wire configuration for simple and reliable connectivity Stainless steel probe for durability and long service life Comes with a 1-meter insulated cable for flexible installation Suitable for industrial, laboratory, and electronics projects Provides consistent readings over time with minimal drift

7Semi TMP117 Accurate Digital Temperature Sensor Breakout I2C (ES-12132) The 7Semi TMP117 Accurate Digital Temperature Sensor Breakout is a high-precision temperature sensing module that gives you very accurate digital temperature readings. It uses the advanced TMP117 sensor, known for its excellent accuracy and fine resolution, so you can trust the temperature data you collect. This makes it great for projects where precise temperature tracking matters. This breakout board communicates over a standard I2C interface, so you can easily connect it to popular controllers like Arduino, Raspberry Pi, or ESP32. It works over a wide temperature range and consumes very low power, helping keep your circuits efficient and stable. Whether you’re building environmental monitors, weather stations, or smart home systems, this sensor makes temperature measurement simple and reliable. Features: High-precision TMP117 digital temperature sensor Delivers very accurate and stable temperature readings I2C interface for easy communication with microcontrollers Low-power operation, suitable for battery-powered projects Wide operating temperature range for versatile applications Compatible with Arduino, ESP32, Raspberry Pi, and other boards Compact breakout board for quick prototyping and integration Board Dimensions TMP117 Temperature Sensor Breakout to Arduino I2C Connection

ASAIR Temperature and Humidity Sensor AM2302 (Original) The AM2302 is a wired version of the DTH22, in a large plastic body. It is a basic, low-cost digital temperature and humidity sensor . It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old. Connect the red 3-5V power, the yellow wire to your data input pin, and the black wire to the ground. Although it uses a single wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin. Compared to DTH11, this sensor is more precise, more accurate, and works in a bigger range of temperature/humidity, but it's larger and more expensive. There is a 5.1K resistor inside the sensor connecting Vcc and DATA so you do not need additional pullup resistors. Also check the AM2302 Temperature & Humidity Sensor available on Iotcart. The sensor is suitable for 0-100 percent humidity readings with 2-5 percent accuracy and -40 to 80 degrees Celsius temperature readings with ± 0.5-degree Celsius accuracy. It has a sampling rate of no more than 0.5 Hz (once every 2 seconds) and comes in a 4-pin single-row pin package for easy connection.

BMP280 Sensor Module The BMP280 sensor module is an absolute barometric pressure sensor specially designed for mobile applications. Its small dimensions and low power consumption allow for the implementation of compact battery-run devices like mobile phones and watches. This BMP280 is a tiny Atmospheric Sensor Breakout to measure barometric pressure, and temperature readings all without taking up too much space. Basically, anything you need to know about atmospheric conditions you can find out from this tiny breakout. The BMP280 Breakout has been design to be used in indoor/outdoor navigation, weather forecasting, home automation, and even personal health and wellness monitoring. This module uses an environmental sensor manufactured by Bosch with a temperature, and barometric pressure sensor that is the next generation upgrade to the popular BMP085/BMP180/BMP183 Sensor. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI! This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy. The BMP280 is the next generation of sensors and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI. Applications: Enhancement of GPS navigation (e.g. time-to first-fix improvement, dead-reckoning, slope detection) Indoor navigation (floor detection, elevator detection) Outdoor navigation, leisure, and sports applications Weather forecast Health care applications (e.g. spirometry)

DFRobot -70°C to 380°C TS01 Infrared Temperature Sensor Module Non-Contact Analog The TS01 Non-Contact IR Sensor is a really smart tool for checking the temperature of things from a distance, without any physical contact. It can measure a very broad range of temperatures, from super cold -70°C all the way up to a very hot 380°C. This is very useful for checking machines that are moving, things that are hard to reach, or surfaces that you just shouldn't touch. It uses infrared technology to sense the heat given off by an object and is built to be very reliable. Because it's an IP65 Temperature Sensor, it's well protected from dust and water splashes, making it great for factories, workshops, or even some outdoor uses. This Infrared Temperature Sensor 4-20mA sends out a standard 4-20mA current signal, which is what many industrial machines and PLCs use. This makes it easy to connect to existing systems. For students and hobbyists, you can use a simple converter module to read the signal with boards like Arduino. The Wide Range Temperature Sensor (-70 to 380C) has a strong metal body and special wiring to avoid outside electrical noise, ensuring you get stable and accurate temperature readings. Features Measures Temperature: From -70 degrees Celsius up to 380 degrees Celsius. How it Works: Non-contact, uses Infrared (IR) light. Output Signal: Standard 4 to 20 milliAmp (mA) current. Protection Level: IP65 (dust-tight and protected from water jets). Power Needed: 7.5 Volts to 36 Volts DC. Field of View (FOV): Narrow 5 degrees for precise targeting. Body Material: Strong all-metal casing for durability.

DHT11 Humidity and Temperature Sensor The DHT-11 Digital Temperature And Humidity Sensor is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so in your code please use sensor reading interval at 2 seconds or more. Compared to the DHT22, this sensor is less precise, less accurate, and works in a smaller range of temperature/humidity. But despite its disadvantages over DHT22, it is a smaller and less expensive sensor for temperature and humidity measurement. APPLICATIONS: Measure temperature and humidity Local Weather station Automatic climate control Environment monitoring Also check the DHT11 Humidity and Temperature Sensor Module pack of 25, The module operates in the voltage range of 3.3VDC to 5.5VDC and is described as a basic, ultra-low-cost digital temperature and humidity sensor.

DHT11 Humidity and Temperature Sensor Module The DHT11 Humidity and Temperature Sensor Module is capable of sensing both temperatures as well as humidity. This makes it ideal for projects as well as automation. The board is also equipped with a high-performance 8-Bit microcontroller connected to the DHT11 sensor module. The output of the DHT11 Temperature Sensor Module is in the form of a digital signal on a single data pin. The sensing update frequency is to be measured every 2sec (0.5Hz). The DHT11 Sensor Module can be interfaced with any microcontroller like Arduino , Raspberry Pi , etc. This Sensor module integrates the DHT11 sensor and other required components on a small PCB. The DHT11 sensor includes a resistive-type humidity measurement component, an NTC temperature measurement component, and a high-performance 8-bit microcontroller inside, and it provides calibrated digital signal output. The Module has high reliability and excellent long-term stability, thanks to the exclusive digital signal acquisition technique and temperature & humidity sensing technology. DHT11 sensor module pins Pinouts Diagram Of DHT11 Humidity and Temperature Sensor Module DHT11 sensor module pin description 1 Vcc Power +Ve (3.3VDC to 5.5VDC Max wrt. GND) 2 Out/Data Outputs both Temperature and Humidity through serial Data 3 Ground Power Ground or Power –Ve Applications: Measure temperature and humidity Local Weather station Automatic climate control Environment monitoring Home Automation