Tests Zirconia and Titania lambda sensors and ECU. Suitable for 1, 2, 3 and 4 wire sensors, heated and unheated. LED display shows crossover signal from sensor. Simulates rich or lean mixture signals to check ECU response. Insulation-piercing clip for quick and easy connection plus display to confirm wire identity. Features a low battery indicator and powered by 9V battery (supplied). Features & Benefits:Tests Zirconia and Titania lambda sensors and ECU.Suitable for 1, 2, 3 and 4 wire sensors, heated and unheated.LED display shows crossover signal from sensor.Simulates rich or lean mixture signals to check ECU response.Insulation-piercing clip for quick and easy connection plus display to confirm wire identity.Features a low battery indicator and powered by 9V battery (supplied).Model No. VS925 Specifications: Model No VS925 Brand: Sealey Nett Weight: 0.42kg Battery: 9V Operating Temperature: 10°C to 50°C Storage Temperature: 20°C to 60°C Size (L x W x D): 147 x