When this detector senses high levels of combustible and toxic gases, it alerts you with an audible alarm, warning light, and vibrating alarm. You can adjust the alarm trigger points to suit your environment. There is also a motion sensor that sounds an alarm if the user becomes disabled.

A calibration check must be performed on the detector before each use to verify that it is working properly. The check requires a regulator and cylinder (sold separately).

Note: LEL is lower explosive limit.