Replacement battery fits 6 Verisure compatible models. Specifications: 1350mAh, 3V, Li-MnO2. Compatible with: Roykvarsler, Voice, Sirene, Nattsikringspanel, Voiceq, Night Contro. Replaces: Verisure CR-2/3AZ. Verisure replacement battery designed for Security System devices. Provides reliable power for your device.