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: ABS Color: As shown in the picture Model: PM01 Power Supply: 2 x 1.5V LR44 160mAh (Built in battery) Application: Electric power measurement Current: 0.000A~65A Power: 0.0W~9999W Frequency: 0~9999Hz Power Factor: 000~1.00 Electricity: 0.000KWH~9999KWH Unit Price: 0.00~99.99 Electricity Fee Amount: 0.00~9999 Working Current: ≤16A Measurement 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 Manual Note: 1. The overload alarm value must be lower than the maximum load power.2. Do not install in a damp place.