







JDiag P50 Car Electrical Circuit Tester Probe 5V-30V Digital Display Circuit Test Pen Car Circuit Tester Lamp Voltage Test Pen
16.2$
15.59$
Quantity:
1
Availability:
Color
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JDiag P50 Car Electrical Circuit Tester Power Probe 5V-30V Digital Display Auto Car Circuit Tester Lamp Voltage Test Pen
DO YOU HAVESUCH TROUBLES ?
On the way to work/ during the trip, your car suddenly broke down,around 4s shop with time, effort, and money?around 4s shop with time, effort, and money?
Frequent failures
Broken down halfway
4s maintenance is too expensive

The new multifunctional electric tester makes up for the various shortcomings of the existing car repair electric tester
1.Voltage measurement
2.Bulb measurement
3.Load voltage measurement with bulb
4.Pulse signals such as Hall sensor, ignition pulse, fuel injector pulse, fuel carbon canister solenoid valve, etc.
Features:
1. Voltage measurement
2. Positive and negative direction detection
3. Frequency prediction
AUTOMOTIVE CIRCUITINSPECTION P50:
Check the fuse
Check battery performance
Detection of positive and negative power
Detect LAN local area network circuit
Test Hall sensor performance
Detection of short circuit faults
Distinguish between real electricity,and poor grounding and poor grounding
Fault code reading function
Torch lighting function
Detect vehicle speed sensor
Detection of ABS circuit
Detect the idling circuit, ignition circuit,Circuits such as fuel injection circuit

REAL-TIME VOLTAGE DISPLAY:
clear at a glance. With lamp beads, it is more convenient to use at night.convenient to use at night.

POSITIVE AND NEGATIVE IDENTIFICATION:
LED lights prompt,quickly identify the positive and negative poles
Red light:Positive voltage
Green light: Negative voltage

FAST CIRCUIT DETECTION:
Accurately identify circuit faults and quickly locate car problems
Fuse detectionITIR
Circuit inspection
ldle motor detection

3 MODES SWITCH:
There are 3 modes in total. The mode switch is operated by the physical buttons of the electric pen body. Press and release the button to cycle through the three working modes.
MDDE 1 : LED digitall display and bulb work at the same time.
MDDE 2 : LED digital display works.tbulb does not work
MDDE 3 : LED digital display does not wark,bulb works normally

FREQUENCY PREDICTION:
When the electric pen is connected to an AC signal (5~30V), thefrequency range can be estimated through the display of thedigital tube.Can be used to measure fuel injector signals,spark plugs, crankshaft sensor signals, etc.

WIDELY APPLICATION:
Tractors Battery / Dry Battery / Truck Battery / Car Battery / Motocycle / Industrial Vehicles / Industrial Vehicles / Boat

PRECAUTIONS:
1) The probe lamp can be replaced, choose 12V5W.
2) The working voltage range of the equipment is
5V~30V. If it exceeds 30V, the electric pen may be
burnt out.

AUTOMOTIVE CIRCUITINSPECTION:
Red Display:Positive Polarity
Green Display:Negative Polarity

The main body and composition of the electric pen:
1) Common end clip line with extension cord
2) Voltage display digital tube
3) Red and green two-color forward and reverse indicator lights
4) A physical button is used to change the working mode
5) One detachable luminous lamp bead

Package:

Customer Reviews
83 ratings
functions as described (4)
accurate voltage indicator (3)
satisfactory (2)
fast delivery (2)
attractive design (2)
highly recommended (2)
Customer photos (12)
g***r
August 25, 2026
Variant: Color:P50
All Goods working properly im happy for this❤️
Buyer from Lithuania
August 5, 2026
Variant: Color:P50
Thanks
S***v
July 12, 2026
Variant: Color:P50
This is the best test probe there is. It's super handy for finding bad wiring or even quickly checking voltages if you are too lazy to pull the multimeter out and untangle the leads.
Buyer from Netherlands
June 18, 2026
Variant: Color:P50
It works but not very rugged., it was cheap and it feels cheap, but good to have one around in boat ,RV or car for when problems occur
H***i
June 16, 2026
Variant: Color:P50
Narazie się sprawdza, dobry produkt, można wyłączyć żarówkę
Buyer from United Kingdom
June 15, 2026
Variant: Color:P50
good
JDiag P50 Car Electrical Circuit Tester Probe 5V-30V Digital Display Circuit Test Pen Car Circuit Tester Lamp Voltage Test Pen
16.2$
15.59$
Quantity:
1
Availability:
Color







