![Oxygen Sensor Tester and Simulator](https://d27wgn5g4t3wja.cloudfront.net/img/61e1e63c-1422-08df-aaf1-b06a24f9fc0a/28541.png)
Oxygen Sensor Tester and Simulator
ST05 - General Technologies Corp. (GTC)
The sensor signal output is shown in real time on the bar graph, while a 2 digit alphanumeric display shows the sensor output cross count per second. By pressing the ?Test? button and performing a snap throttle acceleration of the engine, it tests the response time of the sensor and shows a pass or fail result within seconds. Two buttons allows for simulation of rich or lean conditions to monitor response of the engine control module.