Automotive Test Light, 3-48V DC Digital LED Voltmeter with Dual Polarity Indicator, Heavy Duty Circuit Tester Pen with Stainless Steel Probe & Anti-Lost Protection for Car Truck RV Fuse Battery

Automotive Test Light, 3-48V DC Digital LED Voltmeter with Dual Polarity Indicator, Heavy Duty Circuit Tester Pen with Stainless Steel Probe & Anti-Lost Protection for Car Truck RV Fuse Battery

• PRECISE 3-48V DIGITAL READOUTS: Stop guessing with dim incandescent bulbs; this circuit tester features a clear LED digital display that provides accurate voltage readings with 0.1V resolution; covers wide 3-48V DC range to accurately diagnose battery health, bad alternators, and fuse status on cars, trucks, and hybrids
• INSTANT DUAL-COLOR POLARITY CHECK: Quickly identify positive and negative poles without checking the number screen; the bidirectional LED indicator lights up red for positive and green for negative; simplifies the installation of stereos and dash cams by preventing reverse wiring and short circuits
• INTEGRATED ANTI-LOST PROBE PROTECTION: Designed with an integrated probe guard that slides or attaches to the wire to prevent loss; protects users from accidental stabs when reaching into toolboxes; ensures the stainless steel needle is always safe and ready for piercing wire insulation
• COMPUTER SAFE & DURABLE CONSTRUCTION: Engineered with low-current draw to safeguard delicate ECUs and vehicle sensors; constructed with a rugged ABS body and shatter-resistant acetate material to withstand drops, grease, and daily wear in busy garage environments
• FLEXIBLE 96 INCH REACH FOR ANY VEHICLE: The premium extended spring wire stretches up to 8 feet to easily test tail lights from the battery ground; keeps your workspace clean without tangled wires; the backlit screen ensures clear visibility in dark footwells or under the chassis