... (2)Junction box's panel:Front: sensor socket, power socket, fuse, indicator light, power switch. Back: output 1(analog), output ... ) Anti-corrosion class: 35(7) Materials: Metal; good sealing,.proof splash; Shaft RPM indicator 300-0-300RPM /600-0-600RPM built ... -40 ~ 60°c;3. Metal Materials; 4. withstand voltage,splash proof,good sealing;resistant to mechanical shock& impact (10kg), friction resistance ...