Hal-Hen ® Hearing Aid Battery Tester with universal storage compartment.
- Especially designed for hearing Aid Battery testing
- Press the button for an immediate power level reading
- Works with all types of hearing Aid Batteries: #’s 10, 13, 312, 675
- Stores up to 6 small tab batteries or 4 large tab batteries of all sizes
- Large easy to read meter provides indication to use or replace battery
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