It meets the GB27900-2011 standard; it is used for firefighters' distress alarms. It has the functions of waterproof, explosion-proof, anti-extrusion and high temperature resistance. The static alarm time is 30.12 seconds, the alarm sound is 106.3dB, and the power supply can be used continuously for >24 hours. With a position light function. The luminous brightness is 431.5 cd/m2, the continuous alarm time is >240 min, and the mass is 219.8 g.

Insulation performance: 550MΩ;

Explosion-proof mark: Exib I/IIBT4Gb;

Explosion-proof certificate number: GYB14.1095; product provides inspection report and 3C certification.