GP lithium batteries are known for their high energy density, providing long-lasting power and excellent performance. The CR123A is the perfect battery for wireless alarm sensors, smoke detectors, analog and LED flashlights, as well as AED devices. A CR123A lithium battery delivers three volts and is suitable for many cameras and flash devices. It is extremely versatile, reliable, and cost-effective. The best choice for remote controls, alarm systems, clocks, and radios, to name just a few. Comfort and safety are important for your home. Thanks to GP's lithium battery series, all your smart home and home security devices perform excellently. It can also be used without issues in extreme temperatures. Its flawless operation is tested and guaranteed at temperatures ranging from -40°C to +60°C. The battery measures 17 mm x 34.5 mm (diameter and height). When stored in its closed packaging, it lasts up to 10 years. This battery can be replaced with types labeled DL123A, CR-123A, EL123AP, or CR17345.