Benefits

Maximize engine power, ensure precise mixture calibration, and help prevent damage from incorrect mixtures under extreme conditions

Power & Lambda
Maximum Power
Lower Consumption
Prevent breakages

Analyze your engine's power in relation to the air/fuel mixture

Analyzing the power curve along with lambda values at each RPM range allows you to detect faults, identify areas for improvement, and optimize carburetion or ECU mapping to extract maximum performance safely

Take advantage of the analog output of our Wideband indicator to integrate it with your programmable ECU, data acquisition system, dyno, or test bench

The maximum performance can only be achieved with the perfect mixture

Monitor your mixture indicator and keep the lambda value within the optimal range to maximize your engine's performance. For example, if you're working with a naturally aspirated gasoline engine, values between 0.88 - 0.92λ ensure maximum power without compromising efficiency

Below, we’ve provided a complete list of possible values in the Frequently Asked Questions section

Improve your fuel efficiency with an ideal air-fuel mixture

If your goal is to optimize fuel consumption and save money, maintaining the correct air-fuel ratio helps use fuel more efficiently. This translates to having values close to 1λ, meaning stoichiometric mixtures

You can use it in cars, motorcycles, go-karts, trucks, tractors, and more!

Take care of your engine, maximize its lifespan

An incorrect air-fuel mixture can cause destructive damage to the engine. A mixture indicator allows you to detect and correct these deviations before they become serious issues

What's your best choice?

For maximum precision, fine-tuning, and full connectivity, Wideband is the solution. If you only need a basic reference, Narrowband is sufficient

Recommended for

Car - Motorcycle - Kart - Test bench

Car - Motorcycle - Karting

Measurement range

Wide

Narrow

Display Type

OLED Display (Exact Value)

LED Panel (Reference value)

Frequently Asked Questions

What lambda value should I measure?

It is very important to talk with your engine tuner and conduct tests to answer this question more precisely. The ideal value depends on the engine and racing strategy, but keeping the mixture slightly rich is key to maximizing power and protecting the engine. Below is a guide with the most common ranges:

✅ Naturally Aspirated Engines:

0.88 - 0.92λ → Maximum power without compromising efficiency.

0.84 - 0.87λ → More thermal safety in high-demand engines.

✅ Gasoline Engines with Turbo and High Boost:

0.80 - 0.88λ → Maximum power.

0.75 - 0.79λ → Safe range (avoiding detonation and high temperatures).

✅ Methanol Engines with Turbo or Supercharged:

0.66 - 0.72λ → Balance between power and thermal safety.

0.61 - 0.65λ → Protection against detonation and additional cooling.

⚠️ Considerations for Gasoline Engines:

A lambda below 0.78λ can cause carbon build-up and loss of efficiency.

A lambda above 0.95λ can lead to detonation in high-performance engines."


What is the difference between a Narrowband sensor and a Wideband sensor?

Narrowband lambda sensors are narrow-range sensors that measure from 0 to 1 volt. They come in versions with 1, 2, 3, or 4 wires. Due to their narrow measurement range, the information they provide is limited. They are relatively accurate only around the ideal mixture (λ = 1 or AFR = 14.7), and outside of that range, they serve only as a rough reference. They are not recommended for fine-tuning carburetion adjustments, as they only offer basic information about whether the mixture is close to stoichiometric or not.

On the other hand, Wideband lambda sensors have a measurement range from 0 to 5 volts, allowing them to measure a broader range of air-fuel ratios. These sensors typically have 5 wires or 6 pins and are more modern and expensive. Unlike Narrowband sensors, Wideband sensors provide an accurate reading of the air-fuel ratio at all times, making them ideal for fine-tuning carburetion. Thanks to their greater precision and measurement range, they are the preferred option for high-performance engines or applications that require precise mixture control to maximize efficiency and prevent engine damage.

Can I use the mixture indicator with my car's original sensor?

Yes, they are relatively easy to install, but it depends on the type of sensor and the vehicle's existing setup. Here are some general guidelines:

✅ Narrowband Indicator + Sensor:

This setup is easier because you can connect the sensor in parallel with the vehicle’s original wiring, meaning you don't have to disconnect or modify the original system. It's mainly a plug-and-play solution.

⚠️ Wideband Indicator + Sensor:

This setup requires a bit more work. You'll need to disconnect the original oxygen sensor and connect the Wideband sensor to the new indicator. It's crucial that you follow the installation instructions carefully to avoid damaging the system. The Wideband sensor often requires a dedicated connection and may need additional wiring for proper functioning.

In both cases, make sure to install the sensor in a location that allows for accurate readings, typically after the exhaust manifold or in a location recommended by the sensor manufacturer.

Are they easy to install?

The installation is very simple, you can do it yourself! Here is the installation guide for Narrowband or Wideband, if you have any questions, just let us know.

Do they automatically correct the mixture?

Our mixture indicators are used to monitor the status of your mixture, but they are NOT actuators, meaning they do not affect the amount of fuel entering the engine

How do I install it if my exhaust pipe doesn't have a thread for the lambda sensor?

In this case, we have two options:

✅ Drill a hole in the exhaust pipe and weld a thread of the right size to install the sensor (available in Accessories). This option guarantees accurate measurements and adapts the exhaust pipe to use a lambda sensor.

✅ Install a bracket at the exhaust outlet (available in Accessories). This option is intended for situations where the exhaust pipe cannot be modified or for those who need to remove and reinstall the equipment on different vehicles multiple times.

Do I need to connect the heating resistor on my 3 or 4-wire sensor?

The heating resistor must be connected to 12V so that the sensor quickly reaches its optimal operating temperature (~600°C). This ensures accurate readings from the start and prevents error codes in the ECU. It can be disconnected but with caution. If the exhaust maintains a high temperature (e.g., during high RPM driving), the sensor will continue to work without issues. However, at idle or on short trips, the temperature may drop, affecting the air-fuel mixture reading and causing potential measurement errors. For optimal performance, it is recommended to keep the heater connected at all times

What is the difference between 1, 2, 3, and 4 wire sensors?4o mini

The difference lies in the heating element and the number of ground wires. The recommendation we can give you is to opt for a 4-wire sensor, as they are also the most modern.