Ei Electronics Ei650i, Optical detector, Wired, White, 85 dB, IP20, Surface-mounted
Ei Electronics Ei650i. Detector type: Optical detector, Connectivity technology: Wired, Product color: White. Power source: Battery, Battery technology: Lithium, Battery life: 10 year(s). Diameter: 4.53" (11.5 cm), Height: 1.77" (45 mm). Quantity per pack: 1 pc(s)