What's in the box:

EM285 Automotive Electric Circuit Tester Car Electrical System Tester 6-24V DC (Standard)

Features:
Wide range applications: EM285 circuit tester can be used to test continuity, test polarity of a voltage, check lamp, check electric motor, follow and locate short circuits, test for bad ground contacts etc.
Long test lead: The cable length is about 16ft which allows you test any electrical system easily.
Short-circuit protection: The unit has short-circuit protection and can test for bad ground contacts instantly.
Easy operation: After a simple hook-up of the unit to the vehicle's battery, automotive technician can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward.
Comprehensive 6-24V DC test kit: Do not use on AC voltage.

Operation Instrcutions:
Unroll the unit's cable
Clamp the red clip to the positive terminal of the vehicle's battery
Clamp the black clip to the negative terminal of the vehicle's battery

Specifications:
Color: red
Operation Voltage: 6-24V DC
Cable Length: 16ft
Overload Protection: 8A (When the current exceeds 8A, this item will disconnect the current automatically.)
Package Size: 26.5 * 9 * 4cm
Package Weight: 320g

Package List:
1 * Circuit Tester