APC UPS Environmental Monitoring SmartSlot Card, Humidity & Temperature, APC environmental management system, 0 - 95%, 0 - 40 °C, 4.75 x 4.25 x 1.5" (120.7 x 108 x 38.1 mm), 4.94 oz (140 g) APC UPS Environmental Monitoring SmartSlot Card. Sensor type: Humidity & Temperature, Compatibility: APC environmental management system. Dimensions (WxDxH): 4.75 x 4.25 x 1.5" (120.7 x 108 x 38.1 mm), Weight: 4.94 oz (140 g)