Environmental Sensors - Temp & Humidity

APC AP9520TH NetBotz Temperature & Humidity Sensor Display, 1.69 Inch Width, 3.90 Inch Height

APC NBWS100H Wireless Temperature & Humidity Sensor, 0.75 Inch Height, 1.50 Inch Depth & Width

APC NBWS100T Wireless Temperature Sensor, 1.50 Inch Depth, 1.50 Inch Width, 0.75 Inch Height