Features Multi-functional Measurement: Measure voltage, current, and active power with precision, providing accurate readings for a variety of electrical parameters. Overload Alarm Function: Receive immediate visual alerts with flashing alarm when exceeding the power threshold, ensuring safety and preventing damage to devices. Customizable Power Alarm Threshold: Set your preferred power alarm threshold to suit your specific needs, giving you control over monitoring power consumption. Data Preservation and Clearing: Safeguard accumulated power data with the power-down data save function, and clear energy usage at your convenience. Clear Digital Display: Bright red digital tube display showcases voltage, current, active power, and energy, providing clear visibility of essential measurements. Specification: Condition: 100% Brand New Item Type: Multifunctional Tester Model: PZEM-004 Power Test Range: 0~22kW 0~10kW, the display format is 0.000~9.999 10~22kW, the display format is 10.00~22.00 Energy Test Range: 0~9999kWh 0~10kWh, the display format is 0.000~9.999 10~100kWh, the display format is 10.00~99.99 100~1000kWh, the display format is 100.0~999.9 1000~9999kWh and above, the display format is 1000~9999 Voltage Test Range: 80~260VAC, Display Format is 110.0~220.0 Current Test Range: 0~100A, Display Format is 00.00~99.99 Working Voltage: 80-260VAC Test Voltage: 80-260VAC Rated Power: 100A/22000W Working Frequency: 45-65Hz Measurement Accuracy: 1.0 Product Size: Approx. 12 x 6 x 2.8 cm / 4.7 x 2.4 x 1.1 in Weight: Approx. 198g / 7oz Package List: 1 x Tester 1 x Split-core Transformer 1 x USB Adapter 1 x Chinese English User Manual Note: betweendiv>1. This module is suitable for indoor use and cannot be used in outdoor.between/div>betweendiv>2. The applied load cannot exceed the rated power.between/div>betweendiv>3. Wiring can't be wrong.between/div> Package List 1 x Tester 1 x Split-core Transformer 1 x USB Adapter 1 x Chinese English User Manual