Honeywell Sensepoint Hazardous Area Gas Sensor with Junction Box

Honeywell Sensepoint is designed specifically for industrial gas monitoring where reliability, compliance and lifecycle cost are critical. Flammable, toxic and oxygen versions provide a unified platform for protecting personnel, equipment and processes across production areas, utilities, loading terminals, plant rooms and outdoor installations. A robust PPS housing and high ingress protection support long-term use in harsh locations with dust, moisture and temperature variation, while the detector range is positioned to deliver high performance at an affordable installed cost.

The Sensepoint family combines mature sensing principles to address common industrial gas risks. Flammable detectors use poison-resistant catalytic bead sensors for fast, dependable response and a typical operational life beyond five years. Toxic versions employ Surecell™ electrochemical sensors, offering stable performance over an expected two to five years depending on gas type, while oxygen variants extend coverage to depletion and enrichment monitoring. This breadth of gas options and sensor lifetimes enables standardisation on a single, proven detector family for many different measurement points, reducing complexity in selection, deployment and support.

Flammable and toxic Sensepoint variants are certified to relevant European safety and performance standards and approved for use in hazardous areas, with additional variants supporting global and North American requirements. When installed with appropriate Ex d or Ex e junction boxes, the detectors are suitable for use in potentially explosive atmospheres. High ingress protection as standard, which can be increased with optional weather protection, supports reliable operation in exposed locations subject to washdown, rain, dust and process contaminants. These characteristics help safety and engineering teams align gas detection strategies with regulatory and corporate requirements across multiple regions.

Sensepoint is designed for straightforward integration into both Honeywell Analytics controllers and third-party DCS or PLC systems. Flammable detectors provide an mV bridge output, while toxic versions use a 2-wire 4–20 mA loop, supporting widely accepted input standards. Multiple mechanical connection thread options, including metric and NPT sizes, allow detectors to be matched to existing conduit and junction boxes, simplifying retrofit projects and minimising mechanical rework. This combination of electrical and mechanical flexibility helps shorten project schedules and reduce engineering effort for both upgrades and greenfield installations.

Sensepoint is built for fast, consistent response to gas hazards. The front-end Intrinsic Safety (IS) design enables sensor cartridges to be replaced while the detector remains powered, maintaining area coverage during planned maintenance and reducing the need for lengthy shutdowns. Removing the requirement for a sinter further supports rapid gas diffusion to the sensor, improving response time and enhancing detection of challenging or “sticky” gases such as chlorine and ammonia. Available measurement ranges for flammable and toxic versions allow alarms and setpoints to be aligned with process safety requirements without changing the core detector platform.

Factory-set operation means Sensepoint detectors are supplied ready for straightforward installation with minimal on-site configuration. Toxic versions are delivered pre-calibrated, which helps shorten commissioning time and reduces the need for specialist skills during start-up. A straightforward sensor replacement concept, combined with typical sensor lifetimes of several years, limits planned maintenance duration and supports efficient fleet management. Limited training requirements for basic operation and servicing further assist sites that operate large numbers of detectors with constrained maintenance resources.

A comprehensive accessory range allows Sensepoint to be deployed consistently across applications while using a common detector platform. Weatherproof caps for flammable and toxic detectors, including versions with remote gassing nozzles, facilitate routine bump tests and functional checks without complex setups. Flow adaptors and flow housings enable sample-draw or flow-through installations, while collecting cones improve capture of light gases when detectors are mounted at height.

Dedicated duct mount kits, including high-temperature options, extend monitoring into ventilation and process air systems. High-temperature flammable variants (Sensepoint HT) support elevated-process temperature applications when used with suitable junction boxes and housings. Mounting accessories such as 2″ pipe plates and U-bolt kits provide flexible installation on pipework and structures, helping standardise hardware across different plant layouts.

Sensepoint is supported by gassing blocks, tubing, calibration covers and comprehensive calibration kits for toxic sensors, along with a wide range of spare parts and electrochemical cell exchange kits to extend detector lifetime. These elements enable continued support of installed devices without complex tooling or frequent full replacements, contributing to a lower overall cost of ownership.

The detector family integrates with wider Honeywell safety and plant control architectures, supporting end-to-end gas detection solutions from field sensor through to central controller. A complete set of datasheets, operating instructions, technical handbooks and gas information resources supports system design, risk assessment and ongoing maintenance planning. Combined with global distribution and support, Honeywell Sensepoint provides a stable, scalable foundation for industrial gas detection programmes worldwide.