Make Sound And Light,Tamper Alarm,Solar Powered 3 Alarm Ringtone, 1-60min Alarm Time Tamper Alarm, More Secure, Built-In Tamper-Proof Device On The Back Ipx5 Waterproof, Installed Outdoors And Used In High-Efficiency Photoelectric Conversion Support alarm duration setting Support tamper alarm Low power consumption, 20+ days of standby time Can be with solar energy Power supply: USB power supply (5V / 1A) Power interface: Type-C Wi-Fi type: 2.4GHz Wi-Fi standard: IEEE 802.11b/g Wireless range: 45m Standby current: 2.5mA Type of alarm sound: 3 Maximum alarm sound: 95dB@1m; 90dB@ Waterproof grade: IPX5 Working temp: -10°C - 60°C (14℉ -140℉) Working humidity: 0% - 90%RH (no condensation) Storage temp: -25°C - 70°C (32°F-122°F) Storage humidity: 0% - 90%RH (no condensation) Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:As Shown Material:ABS Package Contents: 2x Alarm(Without 18650 rechargeable Battery) 2Set x Screw Installation Tools 2x Data Cable 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.