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Handheld automotive circuit probe with 2.4 inch color LCD screen and six navigation buttons

P100Pro Power Circuit Probe Tester 9-30V 2.4" LCD electrical system tool

SKU CH-51J4-BG4HY

All-in-one 9-30V circuit probe integrates multimeter, oscilloscope, adjustable power supply and component activation with a 2.4" 320×240 LCD, 1-18A overload protection and 0-60°C operation

  • Team affiliation1 Piece
  • Key featuresAutomotive Circuit Tester, Battery Powered, false
  • All-in-one tester covers multimeter, oscilloscope, power supply and activation in one device
  • 4-inch 320×240 TFT LCD with six buttons and front LED for clear low-light operation
  • Adjustable overload protection trips instantly from 1A to 18A to prevent circuit damage
  • Tests continuity, signals, grounds, shorts, trailer lights and activates bulbs or motors
  • Operates 0-60°C, stores to -40°C, supports USB firmware updates and multi-language interface

All-In-One Automotive Circuit Tester

The P100Pro integrates a multimeter, oscilloscope, adjustable power supply, and component activation into a single probe for 9V-30V vehicle electrical systems. It covers continuity, signal circuit, and bad ground contact checks in one handheld device. Technicians can also use it for short circuit locating and trailer light connection testing.

Thermal Tolerance and Safety Protection

The unit operates reliably across a 0-60°C range and survives storage temperatures down to -40°C and up to 70°C. An internal circuit breaker provides automatic short-circuit protection that trips instantly on current overload. The adjustable overload current setting ranges from 1A to 18A for customized component protection.

2.4" LCD Interface and Connectivity

A 2.4-inch TFT LCD with 320×240 resolution and six physical navigation buttons delivers clear readings in varied lighting. A built-in front LED illuminates dark work areas during testing. USB online firmware upgrades and a multi-language interface ensure the tool stays current for global automotive diagnostic use.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $99.99
Pricier than about 90% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameWEDPATA
More details
Team affiliation1 Piece

Questions about this item

How do I connect the P100Pro probe to a 9 V to 30 V vehicle system and set the 1 A to 18 A breaker before testing?

Power the tool from the vehicle battery within the 9 V to 30 V range, then use the six navigation buttons to adjust the overload current setting between 1 A and 18 A to match the circuit you are testing; the internal breaker will trip instantly if that limit is exceeded.

What part of the P100Pro will need replacement after extended use in a workshop?

The probe tip and its connecting leads are the primary wear items; repeated contact with corroded terminals and vibration can degrade the tip, so keep a spare tip kit on hand for quick swaps.

Which limit appears first when the P100Pro runs continuous component activation tests in a hot engine bay?

The 0 °C to 60 °C operating temperature ceiling is reached before the 18 A current limiter during sustained loads, so allow the unit to cool if the enclosure becomes hot.

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