Grove's capacitive humidity sensor (corrosion resistant) is a soil moisture sensor based on changes in capacitance. Compared to resistive sensors, capacitive sensors do not require direct exposure of metal electrodes, which can significantly reduce electrode erosion.

Sensor Temperatura PT-100

Thermocouple Type-K - Stainless Steel

Temperature Sensor - Grove

SparkFun humidity sensor - HIH-4030

SHT21 Sensor Humidity And Temperature

Sparkfun Temperature and Humidity Sensor- SHT15

PT100 Probe Temperature Sensor

DS18B20 is a single-bus digital temperature sensor with features of ultra-small size, wide range of applicable voltage and measurable temperature and high resolution.

The Atlas Scientific pH circuit designs currently available on the Internet are outdated and use a significant number of overly complex analog components. Atlas Scientific has reinvented and refined the pH circuit of the past to a more modern and simple to use model.

Electronic Brick - Soil moisture sensor is mainly used to detect soil moisture content . The module can obtain the soil moisture value or limit through analog or digital pins.

Grove - Water Atomization is a perfect module to easily develop an atomizer or atomizer module in your applications. With just a few simple steps, you can create a prototype for an atomizer.

It has a Grove interface that makes it easy to integrate with various applications. A humidifier is a basic device with which it can be built, it can develop more advanced and interesting designs with digital aroma technology and any other situations where atomization is necessary.

Uses the NTC Thermistor Sensor, Good Sensitivity. The Clean Waveform of the Comparator Output Signal is Good, Driving Capacity.

This package includes a Sensor of Level of Water and a Sensor of Humidity from Solo. If the plates have water covering the sensor components, an analog value will be available on the "SIG" connection. The Sensor of Level of Water can detect up to 4cm of water. This way, you can check if your aquarium, or your pet's water bowl, still has enough water. You can use the Sensor of Moisture of the Soil to check your plant's soil or growing environment, for example.

DHT22 is a digital capacitive humidity sensor and humidity module is one that contains the compound has been calibrated with digital signal output from the temperature and humidity sensors . < / p>

The Earth Unit is a Sensor for measuring Humidity in Soil or Similar Materials. The Soil Moisture Sensor is quite simple to use. The two large stake-type sensors act as probes for the sensor, acting together as a variable resistance. The higher the moisture in the soil, the better the conductivity between the two, so that the sensor results in less resistance and higher GIS output.

You can read the moisture in the soil through ADC. Within this unit, there is an extra potentiometer to change the measurement range.

Want a robot to hunt for hot objects or sail with fire? This is a small form factor IR Camera capable of tracking up to four heat/infrared sources. Applications are plentiful and can range from tracking robots with IR transmitters to navigating up to light barriers, determining the direction to where the object is going and working as a flame sensor or tracing heat sources. It is fully Arduino compatible with only four wires: two for the power supply and two for the I2C.

Kit Thermostat with LED Indicator - Velleman.