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Key chain hearing aid battery tester Hearing aid battery selecting function for: 10, 312, 13 and 675 Powered by 3V Lithium Battery: eliminates power consumption while testing hearing aid battery Larger Digital LCD display Programmed circuit provides higher accuracy within ±2.5% with Bar-graph indicator for power status Storage compartment for 2 extra batteries
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🇺🇸 Ship from USA · On Agora since 2025
$7.63