Advanced Monitoring & Protection: The Power Meter is an essential device for safeguarding your electrical appliances. It features an over and under voltage protector switch that ensures your devices operate within safe voltage limits. Remote Monitoring: Set and adjust relay values remotely to maintain optimal performance. Voltmeter: Accurately measures voltage levels in your electrical system. Ammeter: Monitors current flow to help prevent overloads. Easy Installation & Use: Designed for hassle-free setup, this smart power meter integrates seamlessly into your home or office electrical system without the need for professional help. Voltage range: AC 85-290V Current range: 0-80A Power range: 0-23KW Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: As shown Material: ABS Package Contents: 1 x KWS-306 Power Meter 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.