Mounting hole size: 19mm
The front shape: Flat round hole
Switch rating: DC12V/ DC24V/ AC110V/ AC220V
Protection degree: IP50 ,IK04
Illuminated type: Buzzer/ Flash buzzer
Voice: >=80dB(1M)
Lamp color: Red / Green / Yellow / Orange / Blue / White
Lamp voltage: DC12V/ DC24V
Contact configuration: 1NO 1NC / 2NO 2NC