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2pcs DHT11 Temperature Humidity Sensor Module Digital Temperature Humidity Sensor 3.3V-5V with Wires for Arduino Raspberry Pi 2 3 (2pcs DHT11) - Walmart.com
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DHT20 - AHT20 Pin Module - I2C Temperature and Humidity Sensor : ID 5183 : $4.50 : Adafruit Industries, Unique & fun DIY electronics and kits
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