Abnormal power alarm Real-time detection, real-time alarm, and timely linkage. Set the power above or below on the APP. After triggering, the APP will automatically push information to the mobile phone. Download the Smart Life/Tuya Smart APP Register an account and enter the interface to monitor the total power, voltage, current, active power, etc. in real time. Multiple monitoring data APP display charge / voltage / current / power. Linkage of smart devices Keep your home / devices safe in a timely manner. [Wide Applications]: This can be particularly useful for managing energy consumption and cost, as well as for ensuring the and efficiency of the electrical system. Suitable for home appliance management, remote management, housing rental use, industrial control equipment use, intelligent upgrade of power distribution equipment, etc. Name:Energy Meter Current measuring ranges:0.2A-80A Input voltage:110-240 V, 50/60Hz Note:This product needs to be used with zigbee gateways. Type:1CT Colour:White Material:PC Package Contents: 1 * WiFi Smart Meter 1 * CT Transformer(The color of the wire is random, not accepting specifications) 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.