ITEM NAME:Ts-838 Lcd Energy Meter Power Supply Voltage and Current Test Energy Meteri C8Z7 Ts-838 Lcd Energy Meter Power Supply Voltage and Current Test Energy Meteri C8Z7 Key Description: 1."OK" button:Switch between 12 hours and 24 hours 2."H/+" key:Set overload warning. 3."M/-" key:time unit setting. 4."SET" key:function set(to be used in conjunction with other keys) It is an energy meter with digital LCD display for appliances with basic functions:Clock,Voltage,Current Power factor,Operate time Power consumption display Overload alarm setting, Price setting Automatic calculation of electricity. Working voltage:AC230C 50HZ(Voltage range:190V-276V) Maximum operating current:16A, Minimum current:0.005A With replaceable 1.5V button batteries 2PCS; Use: 1 Time Setting:Press"SET"key and"H/+"."M/-"key to set the current time. 2.Overload Setting:Press "SET"key and "H/+"key to set the overload power.After setting,if electrical power higher than this setting,it will automatically alarm 3.Price Setting:Press "SET"key and "M/-"key to set the price(the price per kWh). After setting, energy meter will automatically calculate the total used charges. 4.Check Setting:Overload power, time and price setting and completed. Should be press"H/+" and "M/-" key to check the settings in line with the actual situation, if different, please reset and redo the above steps. Plug Type: UK plug,it applies to Malaysia, the United Kingdom and so on. colour:White + green Material:ABS plastic size:13.50 * 6.50 * 7.00cm Package Contents: 1* power metering socket 1* British standard plug 1* instruction manual