Leak Surveyor (LS512) type gas detector comprehensive accurate and facile combustible gas detector advantages and limited space monitor (including alarm function) is safety and reliability. The machine has good vibration resistance, anti-throw property and antistatic ability; LCD display use special toughened glass cover plate, can be in all kinds of extreme conditions use; Has the backlighting hd display, appropriate in the light of the poor under the environment of use; Digital and analog double display function; PPM - LEL - VOL automatic switching range can accurately measuring combustible gas leakage density; To all the detection range of gas sound and light alarm and has self and failure alarm function; Built-in two gears speed sampling pump (high speed and low speed); Shell durable