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FoxInsights

Replace manual gauge reads with automatic digital monitoring — no tank modifications needed.

FoxHall attaches to existing mechanical tank gauges and transmits daily fill data to FoxPortal — giving LPG distributors remote tank visibility without modifying or replacing gauge infrastructure.

Built for LPG distributors with existing mechanical gauge installations.

LPG gauge retrofit · ±4% · ATEX Zone 1 · Daily transmission

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FoxHall — Hall-effect retrofit monitoring device

Digital retrofit monitoring for mechanical tank gauges

FoxHall is a Hall-effect sensor that replaces existing Rochester mechanical gauge assemblies with a digital unit — including an integrated digital display for on-site level checking. It captures fill level data from the gauge position and transmits it to FoxPortal, enabling remote visibility and consumption-based refill planning without structural tank modification.

Compatible with Rochester Junior, Senior, and SRG 705 gauge connectors. ATEX Zone 1 certified for LPG environments.

Core Capabilities

  • Replaces Rochester gauge displays with a digital unit — no tank modification, no infrastructure change
  • Remote level visibility eliminates manual gauge checks across your LPG fleet
  • Intrinsically safe for explosive atmospheres — ATEX Zone 1 certified
  • Compatible with existing Rochester Junior, Senior & SRG 705 gauges — fits what you already have
  • Low-maintenance passive monitoring with long battery life across large fleets

Where FoxHall Fits

FoxHall is the right choice when existing Rochester mechanical gauges need to be brought into a remote monitoring system without replacing tank infrastructure.

  • LPG distribution fleets with a large Rochester mechanical gauge footprint
  • B2B LPG fleet operators requiring ATEX Zone 1 certified hardware on existing Rochester gauge infrastructure
  • Multi-site operations requiring fast rollout without structural changes
  • Environments where tanks are serviced on periodic cycles (daily transmission is sufficient)
  • ATEX Zone 1 LPG installations requiring certified hardware

Industry applications: LPG

Ideal Use Cases

  • LPG distributor fleets with Rochester-gauge-equipped tanks requiring remote level visibility
  • Operations transitioning from manual gauge rounds to structured remote monitoring
  • Multi-site LPG networks requiring ATEX Zone 1 certified hardware

Deployed in the real world

FoxHall · LPG

FoxHall · LPG

FoxHall · LPG

FoxHall · LPG

Deployment Requirements

  • Compatible with Rochester Junior, Senior & SRG 705 gauges only
  • Measurement accuracy: ±4%
  • Transmission: 1× daily (configurable)

When to Use a Different Sensor

FoxHall is optimised for passive remote monitoring on Rochester gauges. Consider an alternative when:

  • Active on-site level visibility is required during filling or collection operations (→ use Hall Pro)
  • The gauge format is 4″ or 8″ — not compatible with FoxHall (→ use Hall Pro)
  • The tank does not have a compatible Rochester gauge — use a direct sensing approach instead (→ use FoxRadar Gen 4 or FoxPressure Gen 4)
  • The required ATEX zone is Zone 0 rather than Zone 1 (→ use Hall Pro or Pressure EX)

Role Within the FoxInsights System

FoxHall extends remote monitoring to tanks that cannot be instrumented with direct radar or pressure sensors.

  • Tank level data transmitted to FoxPortal daily
  • Input for consumption-based forecasting and refill timing
  • Portfolio-wide visibility across legacy gauge infrastructure
  • Planning support without requiring structural changes to existing tanks

Execution remains with your dispatch and logistics teams.

Integrated with FoxPortal

  • Tank-level data transmitted to FoxPortal for consumption-based forecasting and refill planning
  • Portfolio-wide LPG fleet visibility without manual gauge rounds
  • Forecast-based service timing across multiple sites

Technical Specifications

Measurement
Hall-effect magnetic sensing
Range
5–95%
Accuracy
±4%
Display
Integrated digital display
Connectivity
Bluetooth, NB-IoT, LTE Cat-M
SIM
Integrated eSIM
Battery
>10 years at 1 measurement/day
Power source
3× Energizer Ultimate Lithium L91 FR6 (replaceable)
Operating temperature
−20°C to +50°C
Protection
IP68
ATEX
Zone 1 / EPS 22 ATEX 1 354 X / II 2G Ex ib IIA T3 Gb
Gauge compatibility
Rochester Junior, Senior & SRG 705
Mounting
Rochester adapter (Junior/Senior/SRG 705)

Ready to modernize your mechanical gauges and unlock structured visibility?

Talk to a specialist