leak detector in a sentence

Examples

1. Safety gadgets failed the explosion could have been prevented had the gas leak detector and automatic shutoff valve of the gas range, and the separate LPG leak detector gadget of the building functioned properly .  But the gas leak detector and the automatic shutoff valve are connected to the main electrical line of the gas range, which was unplugged at the time of the incident, 
2. Safety gadgets failed the explosion could have been prevented had the gas leak detector and automatic shutoff valve of the gas range, and the separate LPG leak detector gadget of the building functioned properly .  But the gas leak detector and the automatic shutoff valve are connected to the main electrical line of the gas range, which was unplugged at the time of the incident, 
3. Safety gadgets failed the explosion could have been prevented had the gas leak detector and automatic shutoff valve of the gas range, and the separate LPG leak detector gadget of the building functioned properly .  But the gas leak detector and the automatic shutoff valve are connected to the main electrical line of the gas range, which was unplugged at the time of the incident,