Feature:1. This power meter can provide data about connected home appliances including voltage, ampere, power, frequency, etc.2. Humanized design, as long as you press the button, you can easily and quickly see the measured value.3. The selection of high quality materials, the whole body is made of high quality ABS material, shock resistant, drop proof and durable.4. When the current exceeds 16A or the power exceeds 3680W, the icon flashes. When the detected power value is less than 1.0W, it is regarded as local power consumption and time is not accumulated.5. This device adopts dedicated electricity metering chip in combination with a high precise sensor, which makes it a superb tool both for households and electricians.Specification:Item Type: Power Meter Material: ABSColor: As shown in the pictureModel: PM01Power Supply: 2 x 1.5V LR44 160mAh (Built in battery)Application: Electric power measurementCurrent: 0.000A~65APower: 0.0W~9999WFrequency: 0~9999HzPower Factor: 000~1.00Electricity: 0.000KWH~9999KWHUnit Price: 0.00~99.99Electricity Fee Amount: 0.00~9999Working Current: 16AMeasurement Accuracy: 2%Overload Alarm: When the current exceeds 16A or the power exceeds 3680W, the "overload alarm" icon flashes. When the detected power value is less than 1.0W, it is regarded as local power consumption and time is not accumulated..Package List:1 x Power Meter (Battery Not Included)1 x Instruction ManualNote:1. The overload alarm value must be lower than the maximum load power.2. Do not install in a damp place.