The TIF 8900 combustible gas leak detector pinpoints the location of combustible gas leaks as low as 5 ppm. The TIF 8900 can be used to leak check refrigeration systems that use hydrocarbon combustible gases. This battery-powered unit features a flexible 16-inch probe and a Geiger counter-style ticking signal that increases in frequency as the source of the combustible gas is detected. The TIF 8900 is supplied with a carrying case, owner’s manual, rechargeable batteries and charger.