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2026 Auto Power Circuit Probe Tester 4IN1 CP40 12V 24V BMS Short Diagnosis Tool:
$149.00
Ultimate Auto Power Circuit Tester – OBDRESOURCE CP40CP40 Super Automotive Circuit Prob 4-in-1 All-in-One Diagnostic Tool for 6–32V Automotive Electrical Systems Trusted by pros and DIYers alike, the CP40 handles everything from fuel injector testing and battery analysis to component activation, circuit diagnostics, and real-time waveform display—all in one compact tool. Vehicle CompatibilityWorks on: Gasoline and diesel vehicles, motorcycles, boats, RVs, tractors, and SUVs with 6–32V electrical systemsWhy Choose the CP40? This all-in-one tool combines a digital multimeter, battery tester, oscilloscope, fuel injector tester, and component activator—saving you the cost and clutter of multiple devices. - Fully automatic operation with smart diagnostics
- 180° rotatable 2.4-inch screen for hard-to-reach areas
- Built-in 8A self-resetting circuit breaker and ultra-fast short-circuit protection (0.01ms)
- Ideal for professional mechanics and DIY enthusiasts alike
Product Functions - Circuit Testing: Locate shorts, opens, continuity faults, bad grounds, polarity issues; test fuses, relays, diodes, and trailer lights
- Battery Health: Perform cranking, charging, and load tests on 12V/24V batteries (AGM, GEL, EFB, conventional); displays SOH/SOC status
- Fuel Injector Test: Use 5 pulse modes to check for stuck, blocked, leaking, or damaged injectors; view real-time waveforms via built-in oscilloscope
- Oscilloscope: Capture camshaft, crankshaft, injector, EGR, throttle, and CAN signal waveforms; output test signals up to 2MHz
- Component Activation: Send Momentary, Latching, or Pulse signals to fans, motors, lights, wipers, defrosters, and more
- Sim Voltage Mode: Supplies 0–5V to test sensors and signal circuits
- Digital Multimeter: Auto-ranging across DC/AC voltage, resistance, continuity (<100Ω), diode, polarity, frequency, duty cycle, and capacitance
Technical SpecificationsOperating Voltage8–32V DCVoltage Test Range0–80V DC (±0.1V accuracy)Resistance RangeUp to 200kΩ (accuracy may vary above this value)Frequency Range5Hz – 20kHzOscilloscope Sampling Rate1MHz real-timeMax Output Frequency2MHzProbe Tip Impedance4.7MΩ to groundCircuit Protection8A thermal self-resetting breakerShort-Circuit Response Time0.01msScreen2.4-inch, 180° rotatableExtension Cable Length10 meters Note: Injector cleaning adapters and cleaner fluid are not included.
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