Flowtrecs
Product 07 / 08 Flowtrecs App kit with an FS-40 sensor and wireless Bluetooth module
Product image: Flowtrecs App

Android fuel computer app

Flowtrecs App

Available only for Android phones and tablets — there is no iOS version. This wireless fuel computer supports configurations with 1, 2 or 4 FS-40 sensors.

  • Android
  • Bluetooth
  • 1 / 2 / 4 sensors
  • No iOS version

Choose the configuration that matches your installation in the store.

Choose a store variant
1 petrol engine — 1 sensor 2 petrol engines — 2 sensors 1 diesel engine — supply + return — 2 sensors 2 diesel engines — 4 sensors
View all products

Check how many sensors you need

01

Product overview

Flowtrecs App turns an Android phone or tablet into a wireless fuel computer. The app works only on Android and is not available for iOS. The Bluetooth interface sends data from the FS-40 sensors to the app, so a separate cockpit display is not required. The product family supports kits with 1, 2 or 4 sensors.

02

Key features

  • Displays current and total fuel consumption.

  • Calculates fuel economy in km/l, remaining fuel and estimated range.

  • Shows GPS speed, engine RPM, battery voltage and engine hours.

  • Provides an MOB function and metric, marine, UK and US units.

  • Supports one or two petrol engines as well as one or two diesel engines.

  • The sensor kit is factory-calibrated and configured for the ordered version. No manual calibration or selection of sensor type, range or count is needed for first use.

  • Once correctly installed, simply pair your own Android phone or tablet with the module.

03

Technical data

Display device
Android phone or tablet; iOS is not supported
Connection
Bluetooth
Sensor support
1, 2 or 4 FS-40 sensors
1 sensor
1 petrol engine
2 sensors
2 petrol engines or 1 diesel engine (supply + return)
4 sensors
2 diesel engines (2 sensors per engine)
Interface power
12–16 V DC, approx. 250 mA
Measurement range
0.5–300 l/h depending on sensor size
Measurement accuracy
Approx. 5 % error. On diesel systems, relative deviations in net consumption may be greater at low load, especially at idle.
Application
Free from Google Play

04

What is included

  • Wireless Bluetooth interface.
  • FS-40 sensors: 1, 2 or 4, depending on the selected variant.
  • Wiring, manual and mounting parts for the variant.

05

Connecting the RPM signal

Reading RPM from the ignition signal of a carbureted petrol engine requires an additional Tacho Pulse Limiter. Two versions are available: IN — for inboard engines and OUT — for outboard engines.

For fuel-injected engines (EFI/DFI), a limiter is typically not needed when using a suitable electronic tachometer output.

The limiter is used only for RPM readings and is not required to measure fuel consumption.

Diesel: an additional Hall sensor may be required if the engine does not provide a suitable electronic RPM signal.

Flowtrecs / 08

Compare the remaining devices and match the system to the engine type and required sensor count.

Onboard touchscreen system

Flowtrecs Wave

The waterproof IP68 4.3″ system supports configurations with 1, 2 or 4 sensors: one or two petrol engines, or one or two diesel engines. View full details

Wireless system

Flowtrecs Android BT

The standard Flowtrecs Android BT panel is not waterproof and must be installed inside an enclosed boat at a dry helm. The 7″ display supports 1, 2 or 4 sensors. View full details

Fuel flow sensor

FS-40 Sensor

A turbine flow sensor in an aluminium housing, with an impeller running on sapphire bearings. Available in sizes S–3XL. View full details

System selection

Match the sensor to your engine.

Provide the engine model and count, fuel type, return-line layout and, if known, pump flow. We will help select the right model, sensor count and range.

Email us — info@flowtrecs.com