Description: 

Range: DC 2.5-32V two-wire access
Display: Three 0.36 "LED digital tube
Display color: Red
Refresh rate: about 500mS / times
Maximum input: <1.2 times the range
Accuracy: 1 %(+/- 1 digit)
Power Supply: DC 2.5-32V (with the input common-line)
Operating temperature: -10°c~ 65°c