Automobile Repairing Circuit Tester P50 TopDiag Digital Led Bulb Automotive Circuit Tester For 5V-12V-30V Tester Pen

The TopDiag P50 Digital LED Bulb Automotive Circuit Tester is a multifunctional diagnostic tool designed for testing electrical systems in vehicles such as cars, motorcycles, and trucks within a voltage range of 5V to 30V. It combines the functions of a traditional test light with a digital voltmeter to help identify common electrical faults like short circuits, bad grounds, and broken wires.
Key Features and Functions
Three Working Modes: A physical button allows you to cycle through different testing setups:
Mode 1 (Quick Test): Both the LED digital display and the 5W test bulb work simultaneously for comprehensive diagnostics.
Mode 2 (Computer-Safe): Only the LED display works. This draws much less current to protect sensitive vehicle computers and electronics.
Mode 3 (Light Bulb Mode): Only the test bulb works, functioning like a standard test light.
Bulb Load Measurement: Uses a replaceable 5W car bulb as a load. The brightness of the bulb can reveal “hidden” faults—like poor contacts or excessive resistance—that a standard diode tester might miss.
Real-Time Voltage Display: An LCD/LED screen provides accurate, real-time voltage readings (5V–30V).
Polarity Identification: Built-in red and green LEDs immediately distinguish between positive and negative poles.
Signal & Frequency Prediction: When connected to AC signals, it can estimate the frequency of components like fuel injectors, spark plugs, and crankshaft sensors.
Hardware Design
Dual Probes: Features two sharp stainless steel probes, ideal for piercing wire insulation and reaching tight spaces like relay sockets or sensors.
Build Material: Constructed from durable ABS material with a 45-inch heat-resistant silicone wire.
Ease of Use: Designed for one-handed operation with a large alligator clip for grounding.
This tool is widely used for checking car batteries, fuses, and various circuits in trailers, RVs, and boats.
Would you like to know more about how to use the TopDiag P50 to specifically test fuel injector signals or fuses?

You can buy the TopDiag P50 Automotive Circuit Tester in Dubai directly from Jabedul Dewan Trading Co, LLC, who is an authorized dealer for TopDiag.
Local Purchase (Dubai, UAE)
Jabedul Dewan Trading Co, LLC is located in Bur Dubai and specializes in automotive diagnostic tools.
Location: Nesto Hypermarket, Meena Bazaar – Shop F98 – 3 64 St – Bur Dubai – Al Fahidi – Dubai.
Phone / WhatsApp: +971 50 997 0171.
Opening Hours: Monday to Sunday, 9:00 AM – 11:00 PM.
Merchant Details: They are an authorized seller for brands like TopDiag, Thinkcar, and Jdiag, and have a high customer rating for technical support.
Key Specifications
The TopDiag P50 is designed for 5V, 12V, and 30V systems and includes:
Digital LED Display: For accurate real-time voltage readings.
Three Modes: Supports voltage measurement, bulb load measurement, and polarity detection.
Dual Probes: Features sharp stainless steel probes for piercing wires and reaching narrow areas.
These product listings provide details on the TopDiag P50 automotive circuit tester’s features and where to buy it: