Originally designed to allow a lone technician to test for voltage drop on top battery posts; its handsfree operation is a useful diagnostic tool when a third hand is needed.

• Works with standard 4mm banana plugs
• Probe swivels and adjusts in height to test where you need it
• Works great for testing recessed connections
• Clamp tips for added grip
• Available individually as the 21215 (black) and 21216 (red)