Wattmeter Power supply AC220V or AC110V
Display digit
Model
Measuring scope
Frequency scope
Accuracy
4-digit
XL50W
9999W/kW
45Hz---65Hz
±0.1%+3 character
XL400W
350Hz---450Hz
±1.0%+3 character
XL1000W
900Hz---1100Hz
±1.5%+3 character
XL50WLCD
50Hz