Replacement battery fits 12 Actaris compatible models. Specifications: 5400mAh, 3.6V, Li-SOCl2. Compatible with: CF560, Echo 2, Actaris Counter 2 CF560, KH210-RF, KP110-RF, KT110-RF and 6 more compatible models. Replaces: Actaris WILPA2119, Actaris KTT310RF, Actaris OSA465, Actaris OSA464. Actaris replacement battery designed for Equipment/Survey/Test Charger devices.