Against the toxic, flammable and hazardous gases, Gas leak detectors are being used in laboratory /work place on a high percentage in order to detect LEL Level for safe handling. These detectors ensures a sense of high security among the labs and industries of the employees and also of the infrastructures. The signal for presence of those gases which are present in the higher amount than the pre determined limit are caution through visual and audio (Hooter) system. To cut off the supply, solenoid valves are brought in use. One may come across separate detectors for a wide range of various gases which are configured on the basis of detection level as per the required. Gas leak detectors are rust proof and durable.