1. Zigbee Intelligent Temperature And Humidity Sensor, An Intelligent Assistant That Accurately And Conveniently Monitors And Controls Indoor Climate Conditions 2. Need To Cooperate With Zigbee Gateway To Connect To Wifi, Electronic Ink Screen, Wide Viewing Angle, Low Power Consumption, Long Battery Life; Healthy Eye Protection 3. Minimalist Design, Simple, Clean And Smart Home Decoration Gadget 4. Real-Time Display, Accurate And Reliable, Can Provide Real-Time Data, Allowing You To Make Informed Decisions To Optimize The Comfort And Energy Efficiency Of Your Home Or Office. 5. Ultra-Long Battery Life, Ultra-Long Battery Life Ensures Uninterrupted Monitoring Of The Comfort And Energy Efficiency Of Your Home Or Office. Screen: E-Ink Screen Product Model: ZWSH16 Working Voltage: DC 3V Wireless Technology: Zigbee 3.0 Temperature Measurement Range: -9.9℃-60.0℃ Sensor: Thermostor Humidity Measurement Range: 0% Rh-99.9% RH Temperature Accuracy: ±1℃ Battery: CR2430 (Not Included) Humidity Accuracy: ±5% RH Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use. Colour:As Shown Material:PC+ABS Package Contents: 1 * Temperature And Humidity Sensor 1 * Bracket 1 * English Instruction Manual 1 * Sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.