CNBJ-823 Automotive Multi-Function Circuit Tester 4.5M Power Probe Voltage Tester LED Display
Product Overview:
CNBJ-823 is a professional automotive electrical diagnostic tool for vehicle circuit testing and maintenance. This multi-function power probe combines voltage detection, polarity testing, continuity checking, and fault tracing in one device. Perfect for mechanics and DIY enthusiasts.
Key Features:
Digital Voltage Display: Blue LED shows battery voltage value when red/black clips connected to battery terminals
Instant Polarity Test: Touch probe to any contact, Red LED = Positive (+), Green LED = Negative (-), no button press needed
Power Output Mode: Press UP arrow for positive voltage or DOWN arrow for negative voltage output to test components offline
Built-In LED Light: Front illumination for dark engine bays, works as emergency flashlight
Overload Protection: Auto power cut-off with buzzer alarm when current exceeds safe limit
4.5 Meter Cable: Extra-long cable reaches any part of vehicle electrical system
Multi-Function: Test battery voltage, polarity, conductivity, lamps, motors, trace short circuits, find ground faults
How to Use:
Voltage Reading: Connect red clip to battery positive, black clip to negative, read blue digital display
Polarity Test: Touch probe tip to unknown wire or contact, check Red or Green LED
Power Output: Press button to send positive or negative voltage to test components
Circuit Tracing: Follow LED indicators to locate shorts and poor ground connections
Specifications:
Model: CNBJ-823
Cable Length: 4.5 meters / 14.7 feet
Voltage Display: Blue digital LED
Polarity Indicators: Red LED (+) / Green LED (-)
Overload Protection: Auto cut-off with buzzer warning
Built-In Light: Front LED work light
Applications: Battery test, polarity check, continuity, lamp and motor testing, short circuit tracing, ground fault detection
Package Includes:
1 x CNBJ-823 Automotive Multi-Function Circuit Tester with 4.5M cable and battery clips
Compatible With:
All 12V and 24V automotive electrical systems including cars, trucks, SUVs, motorcycles, RVs, boats
