NEW GAS MONITORING SOLUTION:
1.gas alarm*1pc
2.wireless receiver with sound and flash light*1pc
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GAS ALARM:
1.TYPE:ANY TYPE OF GABEL;
    ---POWER:220VAC OR OTHERS
    ---WIRELESS FREQUENCY:433M/315M..

2.WIRELESS RECEIVER:
   ----SOUND LEVER:>100db
   ----PLUG IN SPEAKER
   ----RED FLASH LIGHT;
   ----WIRELESS RECEIVER:315M.433M
   -----AVAILABLE DISTANCE:50---100M IN DOOR.