Usage Tips:Adaptor: AC 110V-250VSensor power supply: ≤100mA 5V DCNetwork mode: Zigbee 3.0Level Range: 0.1m~4mAccuracy: ± 0.02mOperation Temperature: -20℃-50℃Protection: IP65Measuring Range:water levelDisplay Type: Analog OnlySupply Voltage: DC 5VProduct Name: WIFI Remote Ultrasonic Liquid Level Water Tank Monitor SensorBattery: DC 5VApplication: water tankAPP:Tuya/Smart Liferange: 0.1m-4malarm: 80dbAlarm mode:message to appNote:This product does not include a ZIGBEE gateway,This is a ZIGBEE product, it must work under a ZIGBEE gateway, please make sure you have a Zigbee gateway that supports Tuya Smart.Voltage: AC100-240VPlug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so onPlug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.Color: As ShownMaterial: plastic Package Contents:1 x Tuya Zigbee Ultrasonic Liquid Sensor1 x Power AdapterOnly 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.