Autonomous programmable detector designed for the detection of explosive gases with catalytic technology (pellistor), for a detection range of 0 to 100% L.I.E. and resistant to silicone vapors. Provided with a backlit 16 X 2-line display, three keys, programmable alarm relay output and internal acoustics. Especially suitable for use in laboratories or compartmentalized areas that, in addition to local use, need control and perform maneuvers and report their status remotely.