Draper 24708 12V Lambda Tester and Simulator

This 12V oxygen sensor tester and simulator is designed to test both Zirconia and Titania lambda/oxygen sensors. It supports testing 1-4 wire lambda/oxygen sensors, whether heated or unheated, and can simulate rich and lean mixtures to monitor the ECU’s response. An LED display provides a crossover signal readout from the sensor. A wire piercing clamp is included for the positive lead, enabling quick connection checks and confirming wire identity. The unit can be powered from a 12V vehicle battery and requires a separate 9V battery. Key sensor voltages include Zirconia at 1V and Titania at 1V and 5V, with fuel compatibility for petrol and diesel. Physical details include a compact form factor (140 x 90 x 35 mm) and a weight of 311 g, with a positive lead length of 2 m and a test probe lead length of 450 mm. Overall, the instrument is suitable for testing and simulating Zirconia and Titania sensors across common automotive applications.

Features

• Tests Zirconia and Titania lambda/oxygen sensors
• Suitable for 1-4 wire (heated or unheated)
• LED display shows the sensor crossover signal
• Includes wire piercing clamp for positive lead
• Powered by 12V vehicle battery; requires 9V battery

Technical specifications

• Zirconia: 1V
• Titania: 1V and 5V
• Suitable for petrol and diesel
• Positive lead 2 m; test probe lead 450 mm
• Dimensions: 140 x 90 x 35 mm; weight 311 g
• Battery: 9V (not supplied)