First, the function: 

 1, the time switch, time switch can be set to 10 groups, and the loop can be set to the number of days per week; 

 2, real-time displays the current socket voltage, current, power (active power); 

 3, beyond the limit (voltage, power, etc.) after a certain time (to prevent interference caused by false alarms), alarm (voice), and automatically protect the power stage circuit security; 

 4, shows the total electricity consumption, and an hour with automatic statistics how much power, how much power the day before, how much electricity used last month; 

 5, according to the setting of electricity price (user available), Calculation of electricity; 

 6, you can automatically record the work of electrical equipment (operating frequency), when abnormal electrical equipment (such as air conditioners, refrigerators, which do not have refrigeration or cooling, etc.) will automatically send alarm; 

 7, power storage function, for a long time off, the record time, electricity and other data will not be lost; 

 8, with backlight LED; 

 9, Perpetual Calendar (temperature display); 



 Second, the main performance indicators: 

 1, the display range: 

 Voltage: 160 ~ 280 V; 

 Current; 0-20 Safety 

 Power: 1 ~ 3000 W; 

 Power: 0.01 ~ 9999.99 degrees; 

 Electricity: 0.01 ~ 9999.99 yuan; 

 Regular time: 1 minute to 7 days; 

 Total hours worked: 1 minute to 10,000 days; 

 Operating Frequency: 0 ~ 100%; 

 (Measurement temperature: -9 ~ 99 ℃) 

 2, accuracy: Ⅰ level, the error is 1%; 

 3, the refresh frequency: 2 times / sec. 

 4, the use of the environment: Temperature: -10 ~ 60 ℃ Humidity: 10 ~ 95% RH