Pressure-based sensing for constrained and hazardous tank environments
Hydrostatic probe measurement where radar or ultrasonic installation is limited by geometry or compliance requirements.
Built for distributors managing tanks in the field.
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Hydrostatic Sensing for Constrained Installations
Pressure EX is a hydrostatic pressure-based level sensor for installations where radar or ultrasonic sensing is not viable — and where safety regulations require ATEX/IECEx certified hardware. It measures tank levels using a submersible probe, independent of tank geometry, line-of-sight, or internal obstructions. Certified for use in Zone 0 explosive atmospheres (SGS22ATEX0060X / IECEx BAS 22.0034X / II 1 G Ex ia IIC T4 Ga), it enables monitoring in environments where standard sensors are not permitted.
Where Pressure EX Fits
- Tanks with long or angled openings
- Tanks with internal cross bracing
- Geometry obstructing line-of-sight measurement
- Installations requiring probe-based sensing
- Zone 0 explosive atmosphere installations requiring ATEX/IECEx certified hardware (SGS22ATEX0060X / IECEx BAS 22.0034X / II 1 G Ex ia IIC T4 Ga)
Industry applications: Heating Oil · Diesel
Key Capabilities
- Hydrostatic pressure measurement
- Threaded opening adapters (¾, 1, 1¼, 1½, 2 inch)
- Connectivity: LTE NB-IoT + LTE CAT-M1 (no 2G, no WiFi)
- Probe-based measurement (liquid-contact)
Technical Specifications
- Measurement
- Hydrostatic pressure
- Accuracy
- ±0.25% FS (typical)
- Max pressure range
- 300 mbar (~3.5 m for heating oil / diesel)
- Operating temperature
- -30°C to +55°C
- Battery life
- >10 years (depending on transmission interval)
- Power source
- 3.6 V Lithium-Thionyl-Chloride battery (replaceable)
- Connectivity
- LTE NB-IoT, LTE CAT-M1
- ATEX / IECEx
- SGS22ATEX0060X / IECEx BAS 22.0034X / II 1 G Ex ia IIC T4 Ga / Zone 0 Ga
- Mounting
- Probe with threaded adapters
Ideal Use Cases
- Heating oil/diesel portfolios with complex tank geometry
- Sites where radar/ultrasonic are obstructed
- ATEX Zone 0 installations — tank environments with explosive atmospheres where certified intrinsically safe hardware is required
Limitations
- Requires suitable opening for probe insertion
- Product density must be configured correctly
- 300 mbar mapping is validated for heating oil/diesel only
When to Use a Different Sensor
Pressure EX is a specialised device for certified and constrained environments. Consider an alternative when:
- The installation does not require ATEX/IECEx certified hardware (→ use FoxPressure Gen 4)
- Radar measurement is stable and feasible for the tank geometry (→ use FoxRadar Gen 4)
- Simpler installation is preferred and the environment is not hazardous
Role Within the FoxInsights System
Pressure EX provides level time-series input to the platform layer for forecasting. Monitoring is sensing; forecasting remains platform-layer.