APC Environmental Monitoring Unit, monitoring of environmental conditions, 0 - 95%, 0 - 40 °C, Wired, 140.5 x 43.9 x 171.5 mm, 820 g APC Environmental Monitoring Unit. Sensor type: monitoring of environmental conditions. Connectivity technology: Wired. Dimensions (WxDxH): 140.5 x 43.9 x 171.5 mm, Weight: 820 g