Features: Voltage & Polarity Testing-Determine DC/AC Voltage and Postive/Negative quickly. Resistance Continuity Testing- LCD Screen displays the value of resistance. AC Circuit Singal Testing- Fast to troubleshoot the sensors circuit problem. Components Activation in your hand, in the vehicle or W/Ground. Testing Trailer Lights and Connections-10M extension cable allow you to test Cars or Trucks. Checking for Bad Ground Contacts and Locating Short Circuits. Specifications: Brand: TopDiag Model: P100 Material: ABS Display: TFT color display (160 x 128 dpi) Operating Temperature: 0 to 60C (32 to 140 F) Storage Temperature: -40 to 70C (-40 to 185 F) External Power:12.0 or 24.0 V power provided via vehicle battery Package Weight: 1235g / 43.56oz Package Size: 27 * 18 * 8.5cm / 10.6 * 7 * 3.3in Test Tool Specifications: DC voltage range: 0-65V +1 digit Resistance range: 0-200 K ohm The frequency response of tone pass-through: 0Hz to 10K Hz. Circuit Breaker Rating current: 1-10 Amp Testing Standard: 100% current: no trip 150% current: trip in one hour 200% current: trip in 3-30 seconds. 300% current: trip in 0.5-4.0 seconds. Package List 1 * P100 Power scan 1 * Probe Tip 1 * Rugged Blow Molded Case 1 * Battery Hookup Clips 1 * 10m Extension Cable 1 * Cigarette Lighter Adapter 1 * User Manual