Lambda Tester & Simulator


For testing heated and non-heated O2 sensors with 1 to 4 cables

LED indicator bar indicates the O2 sensor signal
simulates O2 sensor signal rich or lean, to test the ECU response
suitable for engines with zirconium and titanium O2 sensors
the tester identifies the connected cable, mass, heater or ECU voltage (if available)
cable piercing clip for easy connection
low battery indicator
sealed switches for workshop environment
durable ABS housing


ltem No.


Lambda Tester & Simulator


  • Tests 1~4 wire sensors in closed-loop control system
  • Tests heated and non-heated sensors
  • Identifies which wire the tester is connected to, i.e. Ground, heater, or ECU supply
  • Rich or lean signal simulation to check ECU reaction
  • Wire piercing clip for easy connection
  • LED light path displays the crossover signals of the Lambda sensor
  • Low battery indication
  • Sealed control switches for a workshop environment
  • Durable ABS enclosure


Power Supply: 9V Battery, 6F22 or equivalent
Low Battery Indication: LED on the indicator panel lights
Operating Environment: -10℃ ~ 50℃,<75%RH
Storage Environment: -20℃ ~ 60℃,<85%RH
Size: 147 x 81 x 29 mm
Weight: 250g