Interrupteur à étage programmable VESTA-043N

Programmable step switch VESTA-043N (WSS-4E-F1). Allows 4 pre-programmed step conditions. RF frequency. 868MHz. Quick and easy installation - no wiring required. The LED indicator makes it easier to locate in the dark. Low battery detection. Regular monitoring signals ensure proper operation of the device. Over-the-air (OTA) firmware update function. Suitable for residential and commercial use. Works with 2 AA 1.5V alkaline batteries. Battery life of 3.5 years. -10°C ~ +45°C operating temperature. Relative humidity up to 85% (non-condensing). Dimensions: 84 (L) x 84 (H) x 18 mm. CE/FCC Compliance