ENV-FLEAK-COMBOIndustrial Fuel Leak Sensor
for generators, day tanks & fuel pipes
diesel · gasoline · jet fuel

Name: Fuel Leak Detection Sensor
Brand: InfraSensing
SKU: ENV-FLEAK-COMBO
Price: 1026 USD
Availability: InStock

Detects #1 & #2 diesel, gasoline, JP5, JP8 & Jet-A fuel leaks.
Sensing cable usable in Class I, Division 2 hazardous locations.
Cable coverage up to 30m / 100ft per sensor.
Clear WET/DRY status with immediate alerts.
IP68 rated sensor module — wall, floor or ceiling mount.
Sensing cable made in the USA.
BMS ready via Modbus TCP, BACnet IP & Modbus RTU.
SNMP for NMS/DCIM & MQTT for IIoT.

Data Sheet

Live Demo

Pricing & Order

Fuel leak detection sensor with sensing cable

At a glance:

Fuels: diesel, gasoline & jet fuel

Coverage: up to 30m / 100ft of cable

Rated: Class I, Div 2 hazardous locations

Detection by Fuel Type

From gasoline in 12 minutes to #2 diesel in 120 — typical response times for every fuel the sensing cable detects.

Hazardous Location Rated

Usable in Class I, Division 2 hazardous locations — and Division 1 (Zone 0/1) where the wiring meets intrinsic safety requirements.

Up to 30m of Coverage

The 4.5m / 14ft default cable extends to 30m / 100ft per sensor — enough to follow a pipe run or ring a tank, not just watch a spot.

Where to Install

Backup generators, day tanks, fuel pipe runs and remote telecom sites — the leak that matters most is the one that empties the tank before the outage.

Why Monitor Fuel 24x7

A fuel leak is a reliability problem, an environmental incident and a remediation bill at once — and unmanned sites can't rely on someone smelling it.

Cable or Optical?

The rated cable covers long runs in hazardous locations; the contactless optical sensor watches a spot in seconds. Many sites use both.

Alerting & Integration

WET/DRY status with immediate alerts via email, SNMP traps & optional SMS — straight into your BMS over Modbus TCP, BACnet IP or Modbus RTU.

How-To Video

A 90 second guided tour of the fuel leak sensor: the module, the sensing cable and how a leak triggers the alert.

Technical Specifications

Full detection, hazardous location, environmental, physical and connectivity specifications for the ENV-FLEAK-COMBO.

The sensing cable reacts to liquid hydrocarbon fuels reaching it. Response time depends on the fuel: lighter, more volatile fuels are detected faster than heavier distillates.

Fuel Type	Typical Response Time at 20°C (68°F)
Gasoline	12 minutes
JP8 jet fuel	50 minutes
Jet-A jet fuel	50 minutes
#1 diesel fuel	60 minutes
JP5 jet fuel	70 minutes
#2 diesel fuel	120 minutes

Against inspection rounds measured in days, a two hour worst case on #2 diesel still turns a slow leak from a discovery into an alert.

Fuel Types / Response Time at 20°C (68°F)	Gasoline (12 min) — JP8 (50 min) — Jet-A (50 min) — #1 diesel (60 min) — JP5 (70 min) — #2 diesel (120 min)
Data Output	WET/DRY indication in the base unit
Hazardous Locations	Class I, Division 2, Groups A, B, C, D — Class I, Division 1 (Zone 0/1) where wiring meets intrinsic safety requirements
Sensor Cable	Default 4.5m (14ft), expandable up to 30m (100ft) per sensor — single use only — made in the USA
Cable Breaking Strength	22,700g (50lb) including connectors
Operating Temperature	0°C to +75°C (32°F to +167°F)
Sensor Enclosure	IP68 rated enclosure
Mounting Options	Wall, floor or ceiling mount
Dimensions	65mm (2.5") x 95mm (3.74") x 55mm (2.16")
Weight	570g (1.26lbs)
Powered By & Communicates With	Base Unit (BASE-XX) required
Connectivity	RJ45 cable transmitting data & power from base unit to sensor
Cable Specification	RJ45 CAT 6/7 recommended — up to 100m (330ft) subject to cable quality & interference
Sensor Power Usage	264 mW
Protocols (via base unit)	BMS: Modbus TCP, BACnet IP & Modbus RTU — NMS/DCIM: SNMP — IIoT: MQTT (BASE-6). Availability depends on base unit model

ENV-FLEAK-COMBOIndustrial Fuel Leak Sensorfor generators, day tanks & fuel pipesdiesel · gasoline · jet fuel