ALLOSUN EM410 Auto Electrical Stethoscope Tester
Quickly and accurately pinpoints and location of engine bad bearings, bushings dirty fuel injectors, wind and air lewaks, noisy valves and filters. Long and short shaft reaches tight areas ultra-sensitive Mike and amplifier gives full range of sounds needed by the professional. LED light indicate the strength of signal of the active channel. Comes with high sensitive long short Probe and an adjustable headset. Power supplied by 1 pieces 9V(6F22) battery.