Radio connector receiver for the FV2 system with potential-free 10A changeover contact. In conjunction with the battery-operated radio connector transmitter FV2 SM, for example, supply air monitoring, which is often required for closed rooms when operating extractor fans, can be implemented without laying cables. With the FV2 EL, the additional switching logic functions (OR, NOR, AND, NAND) enable simultaneous evaluation of up to four FV2 transmitters., Dimensions: 43x43x18.5mm, 230V AC - 1 changeover contact (potential-free) 10A