Usage Tips:Real-time monitoring of voltage, current and power generated and consumed by each channel in kilowatt-hours Power statistics - display of power usage percentage to avoid abnormal power consumption Monitor the working status of equipment Rich functions: automatic setting of valve values and push notifications Simple and safe installation Product name: Smart Bidireciona Meter Monitor APP: Smart Life/Tuya Smart Operating temperature: -10-55 Power input: AC 110-240V 50/60Hz Measurement current range: 0.2A - 80A Compatible: All compatible Meter function: Real-time monitoring of bidirectional power energy consumed and generated Colour:As Shown Material:plastic Package Contents: 1 x Controller 2 x CT Transformer 1 x Back Sticker 1 x English instruction manual 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.