The Steelman 97202 Wireless ChassisEAR detects squeaks and rattles throughout a car or truck’s chassis. This tool detects noises that cannot be duplicated in the stall. Noises can be transmitted up to 50' from transmitter to receiver. No messy wires to string, this kit includes four clamp-on inductive sensors, allowing technician to perform multiple point tests. Technicians can listen to gears, bearings and suspension while under load so problems can be more accurately pinpointed.