Steelman Pro Wireless ChassisEAR 2 Auto Diagnostic Kit — 4-Transmitter Stethoscope with 4.3" Touchscreen Receiver

The STEELMAN PRO Wireless ChassisEAR 2 is a four-transmitter wireless stethoscope kit designed to quickly locate squeaks, rattles and mechanical noises across an automobile’s engine, chassis and drivetrain.

Built for professional technicians and knowledgeable DIYers, this upgraded ChassisEAR 2 packages a color touchscreen receiver with four independent wireless transmitters and piezoelectric microphone clamps so you can monitor multiple points simultaneously. The receiver’s 4.3-inch color LCD touchscreen displays channel selection, allows muting or soloing of transmitters, and names each sensor location for fast identification. Rechargeable batteries in both receiver and transmitters keep you working through road tests, and supplied accessories—jumpers, straps, zip ties, and color-coded boots—simplify mounting in tight or moving areas.

How does the ChassisEAR 2 help find noises during road tests?

The system lets you mount up to four microphone clamps around the vehicle and listen wirelessly at the receiver while driving. Each transmitter operates on one of six selectable channels so you can isolate or compare signals in real time and mute irrelevant sources.

• Four independent transmitters monitor separate locations during a single run
• Selectable channels let you solo or mute transmitters for focused listening
• Hook-and-loop straps, zip ties and jumpers secure clamps during motion
• Color-coded boots and on-screen labels reduce setup confusion

What features make the receiver easy to use in a busy garage?

The 4.3-inch color touchscreen provides a straightforward interface for naming channels, switching inputs, and adjusting settings without fumbling with small buttons. A rechargeable internal battery offers several hours of continuous operation so technicians can complete diagnostics away from power sources.

• 4.3-inch color LCD touchscreen for quick control and channel labeling
• Up to 3.5 hours continuous runtime per charge on the receiver
• Individual transmitter mute controls via the screen for clarity
• Over-ear headphones included for clear monitoring in noisy environments

How do transmitters and clamps adapt to tight or hard-to-reach spots?

Each transmitter connects to a piezoelectric microphone clamp and includes a jumper extension so the clamp can be placed where sound is best while the transmitter sits in a safer, accessible position. This arrangement keeps electronics protected and ensures reliable signal pickup from confined spaces like underhood assemblies or suspension mounts.

• Piezoelectric microphone clamps pick up mechanical vibrations precisely
• Jumper extensions separate clamp and transmitter for cramped locations
• Color-coded boots and labels help keep track of each mounting point
• Transmitter charging station and USB/AC adapters simplify power management

Who is this for? The STEELMAN PRO Wireless ChassisEAR 2 is aimed at professional mechanics, shop technicians, and experienced DIYers who need to diagnose elusive noises in cars and light trucks. If you troubleshoot transmissions, differentials, wheel bearings, suspensions, injectors or drivetrain complaints, this kit reduces guesswork by letting you compare and isolate sounds from multiple locations simultaneously.