Wrist Straper Tester :
1. Easy to use for testing corded or cordless wrist straps.
2. A yellow or red light indicates when the wrist band or cords need to be replaced.
3. Test range: High(fail, yellow signal): 900k~35M ohm, Low(fail,red signal): 750k~10M ohm,
Pass(green signal): High>R>Low
4. Resistivity:900K~35M ohm
6. Power supply:9V battery, Battery sold separately.