Zeitronix V2 Ethanol Content Analyzer Kit (ECA2) Red


We offer new Flow Through Flex Fuel Sensor as a part of ECA-2 Kit, which includes the Ethanol Content Analyser, Flow Through Flex Fuel Sensor and ECA Harness with a correct connector. 

What's your ethanol percentage?
The ethanol content of E85 fuel can vary from 60% to 92% ethanol. A fill up with E85 can drastically change the mix of fuel in your vehicle.  For performance drivers determining actual ethanol content of E85 is essential to maximizing an engine tune and horsepower.

Why know your ethanol percentage?
E85 has the equivalent octane rating of 105 or higher octane fuel.  Higher octane fuel is more resistant to knock allowing for more aggressive ignition timing, higher compression and increased engine power over gasoline itself. 

The Zeitronix Ethanol Content Analyser helps you get the most out of your engine and fuel.

  • Two 0-5 V analog outputs: Ethanol % and Fuel Temperature for use with ECUs, data logging and engine management systems.
  • Connecting harness to Zeitronix Flow Through FLEX Fuel Sensor is included. Harness length is 2.4m
  • Optional real time E% Ethanol Content Gauge.
  • The E% display gauge is only 19mm thick. The back of the gauge is completely flat with cable hidden in a cavity and can be surface mounted almost anywhere inside the car using a piece of Velcro or double sided tape. The E% Display Gauge base allows the gauge to be mounted in a standard 52mm gauge pod. For additional mounting options the package includes 2 set screws and 2 nuts (4-40 screw size).  
  • The E% Display Gauge plugs into the ECA-2 GAUGE port. Power and serial data is supplied directly through the single connection - there are no additional +12V or ground wires. The E% Gauge cable length is 1.5m.
  • ECA-2 is required for E% Gauge operation.
  • ECA-2 dimensions: 76mm x 50mm x 25mm
  • Sensor Dimensions : 154 x 75 x 37 mm
  • Sensor Tube Dimensions: 9mm Outside Diameter
  • ECA-2 Analogue Outputs

Ethanol content and temperature analogue outputs are available as part of the ECA.  The flex fuel sensor does not provide these outputs.  We have created the ECA to provide these outputs making use of E-85 easier with aftermarket engine control modules and data logging systems.

Analogue Outputs 



Ethanol Percentage

0-5 Volts

0% to 100%

Fuel Temperature

0-5 Volts

-40 to 125 °C


Flex fuel Sensor Technical Specification:

Measuring range: 0…100% Alcohol (ethanol) in fuel mixtures 
Sensor Accuracy: 5% of the mixture ratio 
Output characteristic:  Linear
Operating temperature: Environment -40°C… +125°C, Fuel -40°C… +90°C 
Maximum fuel pressure:  10 bar, (145 psi)
Maximum pressure drop:  0.1 bar, (1.45 psi) 
Maximum flow:   200 l/h 
Supply voltage:  6…18 Volts DC
Sensor Temperature error:  < 1.5% 
Response time:    < 250 ms after power on at any temperature
Design:   Suitable for the installation in motor vehicles, independent of position.  Housing is waterproof.    Always check for fuel leaks!