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.
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.