Automotive Digital Multimeter

Currently Unavailable

  • Quick and easy to use
  • The new smaller and ergonomic profile compared with previous models makes handling and operation easier and more convenient
  • Large easy to read 7/16" (11 mm) digits display
  • Single knob selects function
  • Range hold function
  • Display data hold
  • Rugged plastic enclosure
  • Soft anti-slip rubber holster protects the instrument against impacts and chemicals
  • Design allows comfortable hand holding or resting at convenient places horizontally or at an angle by using the stand at the back of the holster


General Technologies Corp. CT8025 Automotive Digital Multimeter

Technical Specifications

Electrical Specification

  • DC Voltage: ±0.25% ± 2 dgts., 1MOhm input impedance, 600 V ac/dc Overload protection
  • AC Voltage: ±1.5% ± 5 dgts., 450KOhm input impedance, 40 to 200 Hz, 600 V ac/dc Overload protection
  • Resistance: ±1.0% ± 3 dgts., 250 V ac/dc Overload protection
  • DC Current: ± 1.0 % ± 3 dgts., Internal 10A/ 250V fuse protection
  • Diode test: 2.4 ± 0.6 mA test current, 3.2 V max. test voltage
  • Continuity Test: Audible indicator (Buzzer) with circuit resistance is below 100 Ohm
  • Temperature: -40º to 400°C (±0.7 + 3 dgts.), 400°C to 1000°C (±1.5 + 10 dgts.)


  • Measure engine RPM, ignition dwell angle, and temperature of exhaust manifold, cooling system, air conditioning, heating system, catalytic converter, etc.
  • Measure output in sensors like Oxygen (O2), Coolant Temperature, Throttle Position (TPS), Manifold Air, Pressure (MAP), Manifold Air Flow (MAF), etc.
  • Check grounds, Voltage drops and continuity across Connectors, Wires, Cables, Relays Contacts, Lamps, Switches, etc.
  • Check components like Alternator, Diodes, Relays Coils, Condensers, Ignition Coils, Spark Plug Wires, Magnetic Pick-ups, Motors, Switches, Fuses, etc.
  • An essential tool for all around troubleshooting of electrical and electronic circuit and systems

For use in

  • Automobiles
  • Trucks
  • Trailers
  • Boats
  • RVs
  • 0 to 600 Volt AC/ DC powered circuits.


  • CT8025
  • Protective holster
  • Soft pouch for carrying and storage
  • Two test probes, one red and one black 35½" (0.9 m) long each
  • One K Type thermocouple probe for temperature measurements
  • 9 V alkaline battery
  • User's Manual