The Fluke PRV240 Proving Unit is a compact, battery-powered voltage source designed to help technicians validate the functionality of electrical test tools without exposure to live circuits. Supporting both AC and DC voltages up to 240 V, this unit is compatible with low-impedance (LoZ) and high-impedance (HiZ) devices such as multimeters, clamp meters, and two-pole testers.

Ideal for industrial, utility, and electrical applications, the PRV240 promotes safer testing environments by supporting the Test Before Touch (TBT) safety protocol. It allows you to verify your meter’s performance before and after taking live measurements—ensuring your equipment is working correctly and reducing the risk of electrical accidents.

Key Features and Benefits:

• Supplies a stable 240 V in both AC and DC modes

• Supports both LoZ and HiZ test equipment

• Built-in LED confirms functionality for quick visual check

• Recessed probe contacts minimize risk of accidental shock

• Enables “Test Before Touch” protocol compliance

• Up to 5,000 tests per battery set (4x AA batteries)

• Includes TPAK™ magnetic strap for hands-free use

• Minimizes PPE requirements in non-live verification scenarios

With its rugged design and ease of use, the Fluke PRV240 is the go-to solution for test tool verification in the field or on the bench—without the hazards of live electrical exposure.