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Testo TL-5903 Replacement AA Cell Battery for the 176-1 is available at EquipTestPro.com with fast shipping and great prices.
| Operating Temperature Range | -67 to 185°F (-55 to 85°C) |
| Type | AA |
| Nominal Capacity | 2.4 Ah |
| Rated Voltage | 3.6 V |
| Weight | 64 oz (18 g) |