Technical Parameters：
1. Operating Volt： DC24V， voltage range： 12～28V
2. Operating Current： Monitoring status, ≤ 35mA @DC24V； Alarm status, ≤ 40mA @DC24V.
3. Two Bus system： Non-polarity two-wire system, current ＜ 400µA
4. Operating environment: Temperature: 0℃～ 55℃; relative humidity: ≤95% (40℃±2℃, without condensation)
5. Alarm Level: Natural gas 10%LEL（±30％, LPG 4% LEL (±3% LEL)
6. Response timing： ≤30 Seconds, reset automatically
7. Working life：＞5 years（clear air condition）
8. Power on（or reset）： The indicator blinks twice quickly when power on or reset, then it blinks in the turn of green, red, and yellow along with the warning sound of the buzzer.
9. The indicator: Warming up status, green indicator blink quickly ( about twice per second);
Monitoring status, green indicator blink once per around 12 seconds (once per minute without signal of two bus system); Alarm status, the red indicator blinks quickly (twice per second); Fault status of the sensor, yellow indicator blink once per 3 seconds.
10. Buzzer: Alarm status, sounds twice per second, Fault status, sounds once per 3 seconds.
11. Self-inspection key: Press the key, and the indicator blinks in the turns green, red, and yellow in circles along with the warning sound of a buzzer.12.Dimensions: Ø104mm x 48 mm. Material of enclosure: ABS ( antifoaming VO)
13. Installation: Surface mount or ceiling mount
14. Standards followed: EN54
2. Operating Current： Monitoring status, ≤ 35mA @DC24V； Alarm status, ≤ 40mA @DC24V.
3. Two Bus system： Non-polarity two-wire system, current ＜ 400µA
4. Operating environment: Temperature: 0℃～ 55℃; relative humidity: ≤95% (40℃±2℃, without condensation)
5. Alarm Level: Natural gas 10%LEL（±30％, LPG 4% LEL (±3% LEL)
6. Response timing： ≤30 Seconds, reset automatically
7. Working life：＞5 years（clear air condition）
8. Power on（or reset）： The indicator blinks twice quickly when power on or reset, then it blinks in the turn of green, red, and yellow along with the warning sound of the buzzer.
9. The indicator: Warming up status, green indicator blink quickly ( about twice per second);
Monitoring status, green indicator blink once per around 12 seconds (once per minute without signal of two bus system); Alarm status, the red indicator blinks quickly (twice per second); Fault status of the sensor, yellow indicator blink once per 3 seconds.
10. Buzzer: Alarm status, sounds twice per second, Fault status, sounds once per 3 seconds.
11. Self-inspection key: Press the key, and the indicator blinks in the turns green, red, and yellow in circles along with the warning sound of a buzzer.12.Dimensions: Ø104mm x 48 mm. Material of enclosure: ABS ( antifoaming VO)
13. Installation: Surface mount or ceiling mount
14. Standards followed: EN54
