---
title: "Honeywell Searchpoint Optima Plus Point Infrared Gas Detector"
description: "Poison-resistant point infrared hydrocarbon gas monitor with IP66/67 316 stainless steel housing optimized to combat coastal atmospheric corrosion."
canonical_url: "https://nodewave.net/store/gas-detection/searchpoint-optima-plus"
last_updated: "2026-10-04T04:05:25.358Z"
---

<callout color="amber" icon="i-lucide-shield-alert">

**Poison-Resistant Optical Architecture:** The Searchpoint Optima Plus uses optical infrared technology rather than
chemical reaction beads. It is completely immune to catalytic poisons such as silicones, siloxanes, lead, and sulfur,
delivering long operational life and low maintenance overheads.

</callout>

## Executive Summary & Core Capabilities

The **Honeywell Searchpoint Optima Plus** is a field-proven point infrared hydrocarbon gas detector engineered for
continuous gas monitoring in challenging operational environments. Conventional catalytic bead sensor heads frequently
suffer poison degradation from silicones, sulfur compounds, and heavy solvents. The optical infrared measuring engine of
the Searchpoint Optima Plus eliminates poisoning risks while maintaining fast detection speeds and stable optical
tracking without requiring oxygen.

Housed in a corrosion-resistant electro-polished **316 stainless steel** enclosure rated to **IP66/67**, the Searchpoint
Optima Plus thrives in severe marine offshore platforms, FPSOs, and coastal oil terminals exposed to heavy salt spray
and high humidity.

<accordion>
<accordion-item icon="i-lucide-sparkles" label="Operational Value & Advantages">

- **Immune to Sensor Poisoning:** Unlike older catalytic gas sensors that burn out when exposed to common airborne
chemicals, the infrared optics never wear out from exposure to high gas concentrations or poisons.
- **No False Alarms from Fog or Dirt:** Dynamic internal heating prevents condensation buildup on internal mirrors,
keeping signal paths clear during extreme weather shifts.
- **Fast Emergency Warning:** Detects methane leak shifts with a <span className="katex">
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 response time under 3 seconds, triggering
safety shutdowns before hazardous gas clouds reach lower explosive limits (LEL).
- **Low Cost of Ownership:** Requires no routine sensor head replacements and supports remote gas testing accessories to
minimize hazardous zone maintenance labor.

</accordion-item>

<accordion-item icon="i-lucide-cpu" label="4-Channel Dual Compensated Optics">

At the center of the Searchpoint Optima Plus is Honeywell’s **4-channel dual-compensated optics block**. Standard
two-channel IR detectors compensate for dust or mirror degradation, but remain susceptible to component aging and
temperature swings.

The Optima Plus architecture utilizes twin active and reference measurement channels running across distinct spectral
bandwidths. This quadrupled optical setup monitors both environmental degradation and source component drift
simultaneously. Coupled with dynamic optical heating, it provides zero-point stability across extreme temperatures
ranging from **-40 °C to +65 °C**.

</accordion-item>
</accordion>

---

## Technical Specifications & Performance Matrix

<tabs>
<tabs-item label="Measurement & Optics">
<table>
<thead>
  <tr>
    <th align="left">
      Metrology Parameter
    </th>
    
    <th align="left">
      Engineering Specification
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td align="left">
      <strong>
        Detection Technique
      </strong>
    </td>
    
    <td align="left">
      4-Channel Dual Compensated Point Infrared (IR)
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Measuring Range
      </strong>
    </td>
    
    <td align="left">
      0 to 100% LEL (Lower Explosive Limit) Hydrocarbons
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Hydrocarbon Accuracy
      </strong>
    </td>
    
    <td align="left">
      Baseline < ±1% FSD; 50% FSD < ±2% FSD
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Ethylene Accuracy
      </strong>
    </td>
    
    <td align="left">
      Baseline < ±2% FSD; 50% FSD < ±3% FSD
    </td>
  </tr>
  
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    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Operating Temperature
      </strong>
    </td>
    
    <td align="left">
      -40 °C to +65 °C (-40 °F to +149 °F)
    </td>
  </tr>
</tbody>
</table>
</tabs-item>

<tabs-item label="Electrical & Protocols">
<table>
<thead>
  <tr>
    <th align="left">
      Interface Component
    </th>
    
    <th align="left">
      Technical Profile
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td align="left">
      <strong>
        Analog Output
      </strong>
    </td>
    
    <td align="left">
      4-20 mA autosensing sink or source mode
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Digital Protocols
      </strong>
    </td>
    
    <td align="left">
      HART 7 over 4-20mA; Modbus RS485 via XNX
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Power Input
      </strong>
    </td>
    
    <td align="left">
      18 to 32 VDC (24 VDC nominal)
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Power Draw
      </strong>
    </td>
    
    <td align="left">
      < 4.5 Watts peak operating draw
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Local Field Interface
      </strong>
    </td>
    
    <td align="left">
      Compatible with Honeywell OELD Bluetooth Display
    </td>
  </tr>
</tbody>
</table>
</tabs-item>

<tabs-item label="Housing & Certifications">
<table>
<thead>
  <tr>
    <th align="left">
      Compliance Metric
    </th>
    
    <th align="left">
      Specification
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td align="left">
      <strong>
        Enclosure Metallurgy
      </strong>
    </td>
    
    <td align="left">
      Electro-polished 316 Stainless Steel
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Ingress Rating
      </strong>
    </td>
    
    <td align="left">
      IP66 / IP67 environmental sealing
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Net Unit Weight
      </strong>
    </td>
    
    <td align="left">
      1.6 kg (3.5 lbs)
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Functional Safety
      </strong>
    </td>
    
    <td align="left">
      IEC 61508 SIL 2 certified
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Hazardous Approvals
      </strong>
    </td>
    
    <td align="left">
      ATEX, IECEx, UL, CSA Class 1 Div 1
    </td>
  </tr>
  
  <tr>
    <td align="left">
      <strong>
        Marine Certifications
      </strong>
    </td>
    
    <td align="left">
      MED, DNV, Bureau Veritas, ABS, Lloyd's Register
    </td>
  </tr>
</tbody>
</table>
</tabs-item>
</tabs>

---

## Target Industry Applications

<card-group>
<card icon="i-lucide-waves" title="Offshore Oil & Gas Platforms">

Protects oil production topsides, FPSO vessels, and marine loading terminals from volatile hydrocarbon gas leaks in
aggressive saltwater marine environments.

</card>

<card icon="i-lucide-factory" title="Refineries & Processing Facilities">

Monitors processing units, valve manifolds, and gas compressor stations prone to chemical contaminants that ruin
standard catalytic bead gas sensors.

</card>
</card-group>

---

## Official Provider Resources & Technical Documentation

For technical handbooks, HART EDD files, and direct engineering guidance from Honeywell, consult the official
manufacturer resources below:

<card-group>
<card icon="i-lucide-external-link" title="Official Honeywell Searchpoint Optima Plus Product Page" target="_blank" to="https://automation.honeywell.com/us/en/products/sensing-solutions/gas-and-flame-detection/fixed-gas-and-flame-detection/fixed-gas-detectors/searchpoint-optima-plus-point-infrared-gas-detector">

Access global hazardous area certifications, technical manuals, and regional support directly from Honeywell Automation.

</card>

<card icon="i-lucide-shield-check" title="Honeywell Industrial Gas & Flame Detection Solutions" target="_blank" to="https://automation.honeywell.com/us/en/products/sensing-solutions/gas-and-flame-detection">

Explore Honeywell's full line of fixed point, open-path, and toxic/flammable gas detection technologies.

</card>
</card-group>