Temperature / Humidity

$14.90  
5 pc(s)
This product measures soil mositure levels by capacitive sensing, rather than resistive sensing like other types of moisture sensor. It is made of a corrosion resistant materal giving it a long service life. Insert it into soil and impress your friends with the real-time soil moisture data!...

$9.90  
17 pc(s)
The DHT11 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). Its fairly simple to use, but requires...

$9.50  
3 pc(s)
The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily incorporate the digital temperature sensor into your project. While some temperature sensors use an analog voltage to represent the temperature, the TMP102 uses the I2C bus...

$14.90  
42 pc(s)
The AM2302 (also known by DHT-22) 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). Its fairly simple to use, but...

$6.95  
56 pc(s)
The DHT11 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). Its fairly simple to use, but requires careful...

$45.50  
2 pc(s)
The HIH6130 is a digital output-type relative humidity (RH) and temperature sensor combined in the same package. This allows the RH measurement to be temperature compensated and provides a second, standalone temperature sensor output. This breakout board gives you standard 0.1" spaced...

$26.60  
2 pc(s)
This is a breakout board for Honeywell's HIH-4030 humidity sensor. The HIH-4030 measures relative humidity (%RH) and delivers it as an analog output voltage. You can connect the output of the sensor directly to an ADC on a microcontroller; and, thanks to the sensor's near linear voltage output,...

$11.90  
8 pc(s)
M5Stack is a robust, Arduino compatible, open source development kit with stackable modules, enabling rapid and high-quality IoT prototyping. This M5Stack Environmental Module is designed for sensing temperature, humidity and barometric pressure. It features two sensors - BMP280 for...

$14.50  
34 pc(s)
Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. This MAX6675 breakout board does everything for you, and can be easily interfaced with Arduino, micro:bit, Raspberry Pi and any other microcontroller via 12-bit resolution SPI bus. A...

$8.50  
3 pc(s)
Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. This MAX6675 breakout board does everything for you, and can be easily interfaced with Arduino, micro:bit, Raspberry Pi and any other microcontroller via 12-bit resolution SPI bus. A...

$59.95  
1 pc(s)
Take your gardening project to the next level with a SHT-10 based soil sensor. The sensor includes a temperature/humidity sensor module from Sensiron in a sinter metal mesh encasing. The casing is weatherproof and will keep water from seeping into the body of the sensor and damaging it, but...

$9.90  
11 pc(s)
This soil moisture sensor can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden! This sensor uses the two probes to pass...

$15.90  
11 pc(s)
This Soil Moisture Sensor is used to measure the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two long exposed metal rods function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil...

$2.20  
Out-of-stock
The LM335A is a very easy-to-use analog temperature sensor. The LM335A works like a Zener diode with a breakdown voltage proportional to absolute temperature at 10mV/°K. Hook up a resistor from 5V and GND, and the LM335A will output an analog voltage of 2.98V (298 Kelvin is 25C or room...
Out-of-stock

$2.90  
524 pc(s)
The TMP36 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (centigrade) temperature. The TMP36 do not require any external calibration to provide typical accuracies of ±1°C at +25°C and...

$18.90  
14 pc(s)
This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a...

$21.90  
4 pc(s)
This sealed digital temperature probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a...

$1.60  
11 pc(s)
10K thermistor with a negative temperature coefficient.  Good choice for temp-sensing aplications. Vishay part #: NTCLE100E3103JB0 Note:  You get only one thermistor. Document: Datasheet

$9.00  
11 pc(s)
This is a stainless steel Type-K Thermocouple probe for measuring temperature from 0 to 400°C. The thermocouple junction of the probe is grounded, providing faster respond to temperature change. The probe itself is 100mm long, 5mm diameter and with M8 thread. Total length of the sensor,...

$10.00  
11 pc(s)
This is a stainless steel Type-K Thermocouple probe for measuring temperature from 0 to 400°C. The thermocouple junction of the probe is grounded, providing faster respond to temperature change. The probe itself is 150mm long, 5mm diameter and with M8 thread. Total length of the sensor,...

$11.00  
10 pc(s)
This is a stainless steel Type-K Thermocouple probe for measuring temperature from 0 to 400°C. The thermocouple junction of the probe is grounded, providing faster respond to temperature change. The probe itself is 200mm long, 5mm diameter and with M8 thread. Total length of the sensor,...

$7.50  
10 pc(s)
This is a stainless steel Type-K Thermocouple probe for measuring temperature from 0 to 400°C. The thermocouple junction of the probe is grounded, providing faster respond to temperature change. The probe itself is 50mm long, 5mm diameter and with M8 thread. Total length of the sensor,...

$175.00  
2 pc(s)
Got weather? This board can handle it. The USB Weather Board includes onboard sensors for barometric pressure, humidity, temperature, and light level. We've also added headers in the new version so you can connect the board to our  weather meters  (not included), adding sensors for...