The meter is durable, convenient and accurate (but cannot be calibrated), it has a very nice LCD color display where it clearly displays electrical values, can simultaneously measure and display AC voltage, AC current, active power and electrical energy. Features :Large color LCD screen: The values of voltage, current, active power and electricity quantity can be displayed in bright colors meanwhile. All data is clear at a glance.Automatic data storage: When the power is cut off, the meter automatically saves the active power value, then reads this value and continues to accumulate it when the meter is powered again.Power transformer : Supplied with a 0 to 100 A current transformer, the meter allows easy and correct measurement of current consumption, apart from the electronic device itself. Just pass the wire through the transformer hole.Reset function: Press the reset button on the front panel of the meter for 5 seconds, and the canceled value of the meter will be cleared. Convenient to use!Practical multimeter: The meter with 2 times/s fast measurement speed, 80-300V AC voltage measurement range, 0-100A current measurement range, 0-30000W active power range, electrical energy from 0-9999999kWh. Easy to install in your home, it helps you monitor voltage and current for electrical safety. Features :Matter : ABS color: Black Accuracy: 1% 2 words AC voltage measurement range: AC 80.0-300.0V AC current measurement range: AC 0-99.99A, and the current display resolution is 0.01A (it displays 100.0A when it is over 100A).Active power measurement range: 0-30000W, and 0-9999.9W display resolution between 0.1W; the rest is 1W.Power: measurement range 0-9999999kwh 0-9999.999kwh; display resolution is 0.001kwh 10,000.00-99,999.99 kWh Display resolution is 0.01 kWh.100,000.0-999,999.9kwh display resolution is 0.1kwh Measurement speed: 2 times / second Dimension: 7.9*4.3*4.8cm / 3.1*1.7*1.9in Installation size: 7.6*3.9cm / 3*1.5in Item Weight: 94.4g / 3.32oz Package weight: 103.6g / 3.65oz Package Size: 9*4.5*5cm / 3.54*1.77*1.96in Note:Meter only, other accessories are not included.Due to manual measurement, there may be deviation.Due to the lighting, the color of the picture and the material object may be slightly different, please refrain.Packing list:1 * Meter 1 * Current Transformer 1 * User Manual