This sensor is designed to measure the proportion of oxygen in exhaust gases of automotive engines (gasoline or Diesel).
The wide band lambda sensor LSU 4.9 is a planar ZrO2 dual cell limiting current sensor with integrated heater.
Its monotonic output signal in the range of lambda 0.65 to air makes the LSU 4.9 capable of being used as a universal sensor for lambda 1 measurement as well as for other lambda ranges. The connector module contains a trimming resistor, which defines the characteristic of the sensor.The main benefit of the LSU 4.9 is the robust design combined with the high Bosch production quality standard.
This lambda sensor operates only in combination with a special LSU-IC, used in most Bosch Motorsport ECUs and lambda control units like LT4. You’ll find this unit.
Application
Application lambda 0.65 to ∞
Fuel compatibility gasoline/Diesel/E85
Exhaust gas pressure ≤ 2.5 bar (higher with decrease accuracy)
| Power supply H+ nominal | 7.5 V |
| System supply voltage | 10.8 V to 16.5 V |
| Heater power steady state | 7.5 W |
| Heater control frequency | ≥ 100 Hz |
| Nominal resistance of Nernst cell | 300 Ohm |
| Max current load for Nernst cell | 250 μA |
We are running out of LSU 4.9 sensors now, please purchase LSU ADV sensor instead.
