12/24/48 Volt Circuit Tester - S & G Tool Aid

The S & G Tool Aid 28200 Circuit Tester is a professional electrical diagnostic tool designed for accurate voltage verification across a wide array of automotive and industrial electrical systems. Engineered for professional technicians and mechanics, it efficiently covers 12V, 24V, and 48V circuits, including 42V hybrid systems, to facilitate essential fault identification in diverse electrical setups.

Key Features

• Multi-Voltage Compatibility: Diagnose electrical systems on passenger vehicles (12V), heavy-duty trucks and commercial fleets (24V), and industrial equipment or specialty circuits (48V), including 42V hybrid systems.
• Clear Visual Indication: Two bright LEDs provide unambiguous voltage feedback: blue indicates 12V and 24V, while red signifies 48V and above. This assists in confirming power presence, verifying ground integrity, and checking circuit continuity.
• Computer Safe Design: Engineered to draw less than 3 milliamps at 12 volts, this circuit tester is safe for use on sensitive electronic control units (ECUs), preventing potential damage during diagnostics.
• Professional-Grade Durability: Constructed with a super-sharp probe and a heavy-duty ground clip with an insulator, ensuring resilience for demanding workshop and field service environments.
• Extended Reach: Equipped with an automatic retracting wire that extends up to 10 feet, offering superior access to difficult-to-reach areas within engine bays, under dashboards, or along chassis and trailer circuits.

Applications

This versatile circuit tester is suitable for checking power and ground on critical circuits such as lighting, ignition feeds, accessory systems, relays, fuses, and connectors in standard 12V automotive setups. It is equally effective for diagnosing 24V circuits on medium- and heavy-duty trucks, agricultural machinery, construction equipment, and fleet vehicles. The 48V capability extends its utility to industrial applications, material-handling systems, and specialized vehicles that utilize higher-voltage control or accessory circuits.

Specifications

• Manufacturer: S & G Tool Aid
• Model Number: 28200
• Voltage Compatibility: 12 / 24 / 48 Volt (also compatible with 42V hybrid systems)
• Weight: 1 lb
• Dimensions: 23 x 5.5 x 2 in