Our best-selling portable leak detector is the GasCheck G3 leak detector, a handheld, battery operated leak detector for sniffing. The unit is calibrated for Helium and has multiple gas selection including Ammonia, Argon, Butane, Hydrogen, SF6 and some refrigerants. Fitted with a large back lit LCD, the display shows unit setting and numerical readout, even in dark, confined spaces. INCLUDES FREE SHIPPING.

"The device worked great and gave us a thorough understanding of using helium leak tracing in our application."