HR202L Humidity sensor
HR202L Humidity sensor is a low cost hygrosensitive module made of moisture sensitive components of organic polymer materials. The resistance of the module changes relative to temperature and humidity.
Soil Moisture Sensor Module
This is a simple water content sensor which can be used to detect soil moisture. It can provide both analog and digital outputs. Analog output can be used to measure the exact moisture content in the soil. While digital output is useful when we want to detect if the soil moisture level crosses a particular level. This level can be easily adjusted using the preset in the panel PCB. This module can be used in Automatic Garden Watering Systems and can be easily interfaced with Arduino Boards, Raspberry Pi, Microcontrollers etc.
Temperature and Humidity Sensor
DHT11 is one of the commonly used sensor module for Temperature and Humidity measurement. It is lab calibrated and provides digital output. DHT11 consist of a NTC temperature measurement component, a resistive type humidity measurement component and a high performance 8-bit microcontroller inside. It outputs data every 2 seconds. It is highly reliable and robust.
Temperature Humidity Sensor – AM2301
AM2301 is a digital temperature and humidity sensor module made using a capacitive humidity sensor, a high precision temperature sensor and an 8 bit microcontroller. Former name of this sensor was DHT21. This module provides extremely accurate outputs as it is digitally calibrated using the coefficients stored in the microcontroller. It has a wide operating voltage range, 3.3V ~ 5.2V makes its interface easy with a wide variety of devices. AM2301 sensor module can be easily interfaced with Arduino Boards, Raspberry Pi and other microcontroller units with its single bus interface.