Wireless, Test button, 9V Alkaline battery
m-e FRM 500, Photoelectrical reflection detector, Wireless, White, Battery, 9 V, Alkaline
m-e FRM 500. Detector type: Photoelectrical reflection detector, Connectivity technology: Wireless, Product color: White. Power source: Battery, Battery voltage: 9 V, Battery technology: Alkaline. Diameter: 3.94" (10 cm), Height: 1.06" (27 mm)