The battery can't be attached in transport.
FEITA030B Surface Resistivity Tester Static Electrical Impedance Meter with Hammer
2.applied to esd clothes , esd shoes, etc
3.high precision
Features:
Low battery indicator light on when battery is under 5V. Digital display. Multi-functional tester can measure environment Temperature / Humidity / Surface Resistance.
Specification:
Resistance Meter Validity of battery:40hours
Weight of instrument:350g
Input Voltage:DC-9V
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