1,High density abs shell material, which is durable and solid. 2,Easy installation, wall-mounted type, convenient to use. Exquisite appearance, mounting screws on both sides. 3,Standard rail structure design: also can be install onto indoor wall and ceiling. 4,High precision and high quality probe, ensuring wide range of monitoring temperature and humidity. 5,Low-power consumpation, widely used in office, warehouse, workshop, museum, machine room and other indoor nonextreme environment. Features: High density abs shell material, which is durable and solid. Easy installation, wall-mounted type, convenient to use. Exquisite appearance, mounting screws on both sides. Standard rail structure design: also can be install onto indoor wall and ceiling. High precision and high quality probe, ensuring wide range of monitoring temperature and humidity. Low-power consumpation, widely used in office, warehouse, workshop, museum, machine room and other indoor nonextreme environment. Specification: Item Type: Humidity Temperature Sensor Material: ABS DC power supply: 12v-24v DC Maximum power consumption: 0.4w Output signal :RS485 output Response time: ≤15S(1m or s wind speed) Temperature stability for a long time: ≤ 0.1 ℃ or year Long-term stability of humidity: ≤1 percent y Temperature range: -40 ℃-80 ℃ Humidity range: 0-100 percent RH The temperature resolution: 0.1 ℃ Humidity resolution: 0.1 percent RH Power consumption: ≤ 0.15 W ( 12 v DC, 25 ℃) Working pressure range: 0.9- 1.1 ATM Size: approx.85x46mm or 3.4x 1.8in(LxW) Package list: 1 x Humidity Temperature Sensor Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.