[. . . ] [. . . ] Designed for a wide range of residential and commercial applications, this easily installed smoke detector has a streamlined design and an extended battery Two-way Wireless Smoke Detector Features & Benefits: · PowerG® two-way Frequency Hopping Spread Spectrum FHSS-TDMA technology provides robustness and reliability closer than ever to wired typical use, according to battery type) (for smoke, tamper, low battery) life for easy and low-cost maintenance. Specifications: Battery type: Weight (including battery): Operating temperature: Operating environment: Dimensions: 3V, CR123A / CR17450 Lithium battery 165g (5. 8oz) -10°C to 50°C (14°F to 122°F) Indoor 120 X 58mm (4. 7 X 2. 3in) · Longer battery life for 5-8 years (with · Provides sound and transmitted alerts · Loud (85db) alarm sound at 3m (10ft) · Large transmission range enabling repeater-free installations on the device bracket · Visible signal quality indication shown · Simple wall or ceiling installation, with · Back tamper · Fullycertifiedbythemoststrictand Certifications: demanding international standards such as EN 14604 for safety products in Europe, and designed to comply with UL 268 in the USA. , PowerG and PowerMaster are registered trademarks of Visonic Ltd. Visonic reserves the right to change information or specifications without notice. [. . . ] [. . . ]