The standard detector is 2-wire or 3-wire. For 4-wire type just add one
relay output module on 3-wire base. Simple and easy module placement
enables wider application and flexible stock control.
Detector is made of high endurance, solid and colorfast Fire-proof plastic.
Non-loosening screws on base terminal for easy installation.
Detector has passed strict EMC test, which greatly eliminates false alarms
caused by interference from nearby sources.