
Custom designed military grade liquid level sensors
- Gill technology, proven in defence applications
- Designed to withstand shock, vibration & wide temperature range
- Low EMC emissions

Custom designed military grade liquid level sensors
- Gill technology, proven in defence applications
- Designed to withstand shock, vibration & wide temperature range
- Low EMC emissions

LevelDefend liquid level sensors are custom designed using Gill technology to deliver proven performance in critical defence applications including military transport vehicles and military marine craft. Used as part of a larger system or vehicle, LevelDefend liquid level sensors provide robust, reliable and accurate measurement of fuel, oil or coolant in challenging defence applications and environments involving harsh dynamic conditions subject to constant movement, shock and vibration.
Key Features
- Contact technology ensures uninterrupted measurement
- High grade anodised aluminium construction with sealed electronics
- Wide operating temperature range
- Low EMC emissions
- Stable & reliable readings in harsh dynamic conditions - mobile liquid and shock & vibration (DEF STAN/MIL STD)
- No moving parts for excellent long term reliability, accuracy and durability
- Factory calibrated with temperature compensation for high accuracy level measurement
Typical Applications
- Armoured fighting vehicles
- Personnel carriers
- Tactical vehicles
- All terrain vehicles
- Military trucks
- Military marine craft
LevelDefend technical information

LevelDefend - custom designed, military grade liquid level sensors
- 6082 T6 anodised aluminium construction with sealed electronics
- Accuracy +/- 2% FSD @20°C
- Probe lengths from 100mm
- Mounting: SAE 5-bolt panel mount option
- EMC/EMI to DEF STAN 59-411
- Suitable for top of tank or inverted installation
LevelDefend, custom designed, liquid level sensors proven in defence applications - more details
Designed & Manufactured by Gill Sensors & Controls in the UK, LevelDefend liquid level sensors use solid-state capacitive level sensing technology to provide robust, reliable and accurate fuel, oil or coolant measurement in mobile military vehicles and other liquid holding tanks exposed to hostile operating environments. LevelDefend custom sensors have wide liquid compatilibity. In addition to fuels and oils, LevelDefend level sensors can measure chemicals and water-based liquids.
With no moving parts, floats or other mechanical linkages, LevelDefend provides excellent long term reliability, accuracy and durability resulting in lowest lifetime cost of ownership.
As part of Gill’s stringent quality control, every LevelDefend sensor is factory calibrated to customer requirements with temperature compensation, to provide market leading liquid level measurement accuracy as well as quick and easy setup.
Output, current 4-20mA.
Environmental protection to IP67
LevelDefend level sensors have no moving parts and as a result are extremely reliable and accurate, requiring minimum maintenance.