Explosion-proof Firefighters Rescue Caller

(1) This product complies with the GB 27900-2011 "Firefighter Screaming Device" standard.

(2) Explosion-proof mark: Exib ll B T4 Gb.

(3) It has functions such as pre-alarm, automatic alarm, manual alarm, low-voltage alarm, and communication.

(4) Allow static time: 30±2s.

(5) Pre-alarm time: 15±2s.

(6) Pre-alarm sound level intensity ≥80dB.

(7) The alarm sound level intensity is ≥100dB.

(8) Continuous working time: continuous power-on time> 24h; continuous alarm time ≥ 240min.

(9) Mass: ≤300g.

(10) It has the following properties: explosion-proof performance, insulation performance, waterproof performance, weather resistance and mechanical environment resistance.

(11) Waterproof performance: The rescuer is placed in a container with a water depth of 1.5m for 2h, no water seeps into the rescuer, and the rescuer can work normally.

(12) Luminous brightness: >300cd/㎡.

(13) In a dense smoke environment, it can indicate the location of the rescuer.