Fuel Level Indicator (from £99 + fittings + VAT)

For a long time aircraft have suffered from unreliable and inaccurate fuel gauges. We offer a range of gauges with unrivalled reliability. Our gauges are now used by several leading European manufacturers.

Benefits:

Inexpensive
Lightweight
Reliable
Simple

Compared to capacitance type gauges our units are more reliable. Capacitance gauges are prone to failure if the sender comes into contact with even small amounts of water. Capacitance gauges may misread by 10% or even more depending on what fuel is used. Mogas and Avgas have different qualities and unleaded fuels vary depending on season. Our gauges are unaffected by this type of variation.

How do they work?

The senders are made with a series (often eight) reed switches set inside a stainless steel tube. A magnetic float sweeps past the switches changing the setting. Each switch operates a resistor and the resistance of the sender is changed depending on the fuel level. Our aircraft specific senders are calibrated to reflect the non-linearity of the fuel tank. Although the senders have only eight switches the resolution is more than adequate. Better to have an accurate gauge with eighth resolution that an inaccurate gauge which at best tells you fuel content to within 10%.

Can you fit one?
You need a flat surafce of about 80mm diameter
The sender must be at least 200mm long to be effective (they can not be bent)
The sender are European configuration 0 - 180 ohms (empty - full)