Features：
-Measures various parameters: power (W), energy (kWh), volts, amps, hertz, power factor and maximum power (W), time, days - kWh is vital as this is what your electricity bills are based on!
-Large, clear LCD display for easy reading (screen dimension: 45mm x 70mm).
-Cumulative Kilowatt-Hour Monitor
-Calculates electricity expenses
-Electricity price setting by pressing COST, FUNCTION, UP and DOWN button according to the instructions
-Sets electricity price value which ranges 00.00COST/KWH ~99.99COST/KWH
-Displays volts, amps and wattage accurate to 3% 
-Low power consumption.
-Built-in Battery(3.6V rechargeable batteries ) backup - allows meter to be moved (and viewed) without losing readings.

Specifications：
-Power consumption of the Power Meter Monitor：0.5W
-Operating voltage: 120VAC
-Frequency display: 60HZ
-Operating current: max 15A
-Wide voltage range: 110V-130V
-The set Wattage display (Watts) is 0W~9999W; but the real Wattage display (Watts) is 0~1800W
-Timing display range: 0 second~9999 days
-Voltage display range: 0V~9999V
-Current display (amps): 0.000A~15.000A
-Frequency display: 0Hz~9999Hz
-Price display range: 0.00COST/KWH～99.99COST/KWH
-Total KWh and cost display:  0.000KWh-9999KWh,
0.00COST----9999COST
-3-pin US plug
-Dimensions: Length = 155mm; Width = 70mm; Height = 45mm (not inc. pins)
-Functioning indicator