1)The tester uses a stacked battery 9v power
2)The tester will shut off automaticakky if it dose not work for 15 minutes
3) LCD display low battry when tis battery with too low volatage and influence its operation, this series inspectors are developed for testiong different cable terminals, they cannot be misused, otherwise they will be damaged permanently.
Technical specification
1) Display
Dot 128*64 sequence LCD lattice(valid visual field 48*32mm)
2) Power Supply
A stacked Battery of 9v with power consumption 15mA
3)Low battery display
The 9v battery voltage is low 6.5v, LCD display low battery
4)Dimension
149*66*23mm