AUTOOL BT210 · NON-CONTACT WIRE TRACKER & SHORT FINDER
AUTOOL BT210 Automotive Circuit Tester & Short/Open Cable Tracker
Pinpoint broken wires, short circuits, and harness paths behind dashboards, door boots, and carpets in minutes without tearing apart trim.
- Transmitter + Receiver
- 9V-30V (12V/24V)
- Flexible Probe

Engineered for Professional Workshop Demands
The AUTOOL BT210 is built to deliver speed, accuracy, and durability in busy service bays.

Non-Contact Tracing Without Stripping Wires
Follow the modulated tone signal along the outside of wire bundles, under carpets, and behind trim panels without damaging insulation.
Pinpoint Open Circuits (Broken Wires)
Sweep the inductive receiver along the wire path—the exact spot where the audio tone stops reveals the internal break.
Short Circuit & Continuity Checking
Switch the transmitter between TONE and CONT modes to verify circuit continuity, identify blown-fuse shorts, and check DC polarity.
Adjustable Sensitivity & Bendable Probe
Dial in the receiver sensitivity wheel to isolate a single wire inside a thick harness and bend the probe tip into cramped corners.

NO MORE TEARING DOWN HARNESSES
Locate Broken Wires and Shorts Without Piercing Insulation
Traditional troubleshooting requires unwrapping meters of electrical tape. With AUTOOL BT210, simply clip the transmitter to the fuse terminal or connector and trace the acoustic signal effortlessly.
- Eliminates insulation piercing that causes future wire corrosion
- Instantly reveals the exact coordinate of an internal wire break
- Detects intermittent connection faults by wiggling the harness

BUILT FOR BUSY WORKSHOPS
Flexible Gooseneck Probe & Noise-Isolating Earphone Port
Behind relay panels and steering columns, rigid probes cannot reach. The BT210's shape-retaining gooseneck bends around obstacles, while the 3.5mm headphone jack blocks out shop noise.
- Rotary sensitivity knob filters out adjacent wire crosstalk
- One-switch toggle between TONE and CONT (Continuity) modes
- Reverse polarity and overload protection

12V & 24V VERSATILITY
From Passenger Cars to Long-Wheelbase Trucks & Trailers
Supporting 9V to 30V DC systems, BT210 allows a single technician to trace long trailer lighting harnesses and commercial truck chassis wiring.
- Ideal for trailer tail-light, ABS, and auxiliary wiring diagnostics
- Includes heavy-duty alligator clips and piercing-optional test lead
- Comes with a zippered padded carrying pouch
Technical Specifications & Hardware Parameters
Complete manufacturer-verified technical data and operating ranges.
| Brand / Model | AUTOOL BT210 |
|---|---|
| Product Type | Automotive Wire Tracker & Short/Open Circuit Tester |
| System Voltage | 9V – 30V DC (12V & 24V Vehicles) |
| Operating Modes | TONE (Signal Tracing) / CONT (Continuity & Short) |
| Receiver Probe | Flexible Shape-Retaining Inductive Probe |
| Sensitivity Control | Stepless Rotary Potentiometer |
| Indicators | Speaker + 3.5mm Headphone Jack + Bi-Color LED |
|---|---|
| Power Source | 2 × 9V Batteries (Transmitter & Receiver) |
| Protections | Reverse Polarity & Overload Protection |
| Operating Temp | -10°C to +60°C |
| Storage Case | Zippered Protective Carrying Pouch |
| Warranty | 1-Year Official Otoeko Warranty |
Workshop Application & Operating Guide
Recommended 4-step standard operating procedure for accurate results.
Connect the Transmitter
Clip the black lead to vehicle ground (-) and the red lead/probe to the target wire or fuse socket.
Select TONE Mode
Flip the transmitter switch to TONE; the LED lights up to confirm signal transmission.
Sweep with the Flexible Receiver
Hold the TEST button on the receiver and trace along the harness while listening to the pitch.
Pinpoint the Fault
Where the audio tone abruptly drops off marks the exact location of the open circuit or short to ground.
Conventional Methods vs. Professional Diagnostics
How precision engineering eliminates guesswork and comebacks.
Conventional / Basic Methods
- Unwrapping entire wire looms just to find a single break
- Piercing wire insulation with sharp probes causes corrosion
- Requires two technicians on long trucks and trailers
- Hours wasted removing seats and carpets unnecessarily
With AUTOOL BT210
- Traces signals through trim, carpet, and tape non-invasively
- Zero damage to factory wire insulation
- Single-technician operation from bumper to bumper
- Flexible probe and sensitivity dial isolate the exact fault spot

Package Contents — Ready for the Workshop
Complete factory kit inspected prior to dispatch.
- 1 × AUTOOL BT210 Signal Transmitter Unit with Clips & Test Probe
- 1 × AUTOOL BT210 Inductive Receiver Unit with Flexible Probe
- 1 × Zippered Carrying Pouch & User Manual
1 Year Official Otoeko Warranty
The AUTOOL BT210 is backed by a 1 Year official Otoeko warranty against manufacturing defects, with full technical support.
Frequently Asked Questions
Key technical questions from technicians and workshops about the AUTOOL BT210.
How does AUTOOL BT210 find a broken wire?
The transmitter injects a safe high-frequency tone into the wire. As you sweep the inductive receiver along the wire, the tone plays until you pass the break point, where the sound stops.
Do I need to strip the wire or remove electrical tape?
No, the receiver detects the electromagnetic signal right through insulation, loom tape, and carpet.
Does it work on 24V trucks and trailers?
Yes, it is rated for 9V to 30V DC electrical systems.
What is the sensitivity knob used for?
Lowering sensitivity narrows the detection radius so you can pick out the exact wire inside a tightly packed bundle.
Can it test continuity when the battery is disconnected?
Yes, in CONT mode the transmitter uses its internal battery to check continuity and short circuits.
What warranty is provided?
1-year official Otoeko distributor warranty.
