Model KTH18 Max input DC voltage DC60V Max input circuit Current 34mA Max input bell stream voltage 60V(25 ±3)HZ Max input bell stream circuit current 38mA Weight (kg) 3.3 Communication Distance �10km,model: MHYV1*2*7/0.37 Anti noise level �75dB Bell ringing level �90dB(A) Material ABS Protection Level IP54 Installation Wall Mounting/Table Linker KTA17 safe coupler Dial model Tone and Pulse Function Explosion proof /waterproof/ anti corrosion/anti dust -
