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Environment

Environment sensors include light sensor, temperature sensor and humidity sensor etc. They are able to measure relevant environmental information precisely.

  1. $6.98
    This temperature & Humidity sensor is a wired version of the DHT21, 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).