... ) Main technical parameters Transmitter: Power supply DC 24V DC source 300mA Safeguard 250V, 0.5A fuse Output current 180mAJP1240mA Center frequency 8 ... guard status 380mAin alarm status 380mAsensitivity 5μASafeguard 250V, 0.5A, fuseradio-frequency bandwidth 7.5MHZ 8.5MHZ