1. The Power Test Tool is the most revolutionary circuit tester to date. Featuring avometer, test light, built-in flashlight, short circuit indicator, relay/component tester, continuity tester and bad ground indicator, the Power Test is truly the ultimate in power and affordability, allowing users to check circuitry in one single step. An absolute must for every technician looking for a fast and accurate solution to electrical system diagnostics. 2. Features: Performs every type of service including power injection, measurement, ground testing, polarity checks, continuity testing and components activation With a flip of the power switch, you have an instant hot/ground lead for powering up electrical components like cooling fans, relays, etc Simultaneously uses the hot lead and the ground lead to activate components right in your hand Instantly identifies positive, negative and open circuits Tests for bad ground contacts instantly, allowing you to follow and locate shorts fast without wasting fuses Instantly checks continuity of switches, relays and diodes Circuit breaker protected Audio tone indicator allows for no-look menu scrolling once users are familiar with menu tone assignment 20ft.(extendable) cable provides excellent accessibility to test along the vehicle 3. Specifications Display: TFT color display (160 x 128 dpi) Operating Temperature: 0 to 60 degree Celsius External Power: 12.0 or 24.0 V power provided via vehicle battery 4. Package List: 1 x Power Test PT150 1 x Rugged Blow Molded Case 1 x 20ft. Extension Cable 1 x Probe Tip 1 x Battery Hookup Clips 1 x Cigarette Lighter Adapter 1 x User Manual