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Product Features
  • Gas sensor junction box featuring simplified maintenance using familiar smartphone technology
  • Smart junction box provides non-intrusive interaction reducing maintenance time and safety risk
  • Easy access to hard-to-reach detectors
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
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  • Please see our delivery page for full information

Honeywell Analytics OELD (Optima Excel Local Display)


Honeywell Analytics OELD (Optima Excel Local Display)

The Optima Excel Local Display (OELD) is a smart junction box for the Searchpoint Optima Plus and Searchline Excel infrared detectors for flammable hydrocarbons. The OELD includes an LCD screen for gas information, a "traffic light" indicator for at-a-glance detector status, and Bluetooth connectivity for simplified, non-intrusive maintenance. Simply pair the OELD with our intrinsically safe, ruggedized smartphone; then use the OELD smartphone app to interact with the gas detector from up to 10 meters away.

For maximum flexibility, the gas detector can be mounted either directly or remotely to OELD to suit any situation.

Quick Specs:

• Backward compatible with all versions of Searchpoint Optima Plus and Searchline Excel
• Robust Aluminium or Stainless steel housing
• Ingress protection IP66 / Type 4X (in accordance with NEMA 250)
• Worldwide approvals including ATEX, IECEx, cULus

Product Specification

OELD Specification


Marine-grade aluminium alloy or 316 stainless steel with
5-coat painted finish
WEIGHT Aluminium version 2.3 kg (5 lb), stainless steel version 5.0 kg
(11 lb)
DIMENSIONS 159 x 197 x 114 mm (6 ¼ x 7 ¾ x 4 ½ inch)
CABLE ENTRIES 5 x M25 (ATEX/IECEx version) or 5 x ¾” NPT (cULus version).
One reserved for sensor connection.
3 blanking plugs supplied for unused entries.
TERMINATION 2 x pluggable rising-clamp type for connection to gas detector
and field wiring.
Accepts cable sizes of 0.5 to 2.5mm2, 12 to 28 AWG
STORAGE TEMPERATURE -40 to +65 °C (-40 to 149 °F)
OPERATIONAL TEMPERATURE -40 to +65 °C (-40 to 149 °F)
-60 to +65 °C (-76 to 149 °F) (CU TR-EX version only)
HUMIDITY 0 to 99% RH (non-condensing)
DISPLAY LCD module showing digital readout of sensor output, bar chart
representation, units of measurement, status icons for alarm,
maintenance and active Bluetooth connection.
CONFIGURABLE DISPLAYED INFORMATION Displayed information fully user-configurable using the OELD
mobile app.
Units of measurement (select from %LEL, mg/m3, g/m3, %Vol,
ppm, mA, A, kppm, LEL.m, dB, dBA, ppm.m)
Gas name (up to 4 alpha-numeric characters)
Measurement range
VISUAL INDICATION Green/yellow/red/blue multi-colour backlight to display for
indication of detector and OELD status.
Green (normal) indication can be disabled via app.
POWER SUPPLY 18 to 32 Vdc (24 Vdc nominal), <2 W
INTERFACES Bluetooth® (BLE) non-intrusive connection to suitable mobile
device running the OELD mobile app.
Range up to 10 m (30 feet) (mobile device dependant)
Internal RS-485 connection to Searchpoint Optima Plus or
Searchline Excel via SHC-1 through the SHC Protection Device
IEC/EN/UL/CSA 61010 (Electrical Safety)
IECEx [UL 16.0066X]
Ex db IIC T6
Ex tb IIIC T85 °C
Tamb -40 to +65 °C
EN 60079-29-1 Approved Accessory
Class I, Div 1, A, B, C & D
Class II, Div 1 F & G, Class III, Div 1
Tamb -55 to +65 °C
Temp Code T6
Class I, Zone 1, AEx d IIC T6
Class I, Zone 21, AEx tb IIIC T6
ISA 60079-29-1
CU TR-Ex (Russian Customs Union), Tamb -60 to +65 °C*
MARITIME APPROVALS Type approved to DNV, BV+, Lloyds+, ABS EN 60945 (EMC) IEC 60092-504
OTHER APPROVALS Bluetooth Certified, Radio Equipment Directive (RED), FCC+, country-specific wireless approvals
BLUETOOTH COMMUNICATION SECURITY Certificate-based mutual authentication. Encryption to AES128
  • OELDBXXXXXADMAX OELD Smart Junction Box, Display, Ex d, Aluminium, M25,ATEX/IECEx
  • OELDBXXXXXSDMAX OELD Smart Junction Box, Display, Ex d, 316SST, M25, ATEX/IECEx
  • OELDBXXXXXAEMAX OELD Smart Junction Box, Display, Ex e Aluminium, M25,ATEX/IECEx
  • OELDBXXXXXSEMAX OELD Smart Junction Box, Display, Ex e, 316SST, M25, ATEX/IECEx
  • OELDBXXXXXADNUX OELD Smart Junction Box, Display, C1D1 Z1, Aluminium, 3/4"NPT, cULus
  • OELDBXXXXXSDNUX OELD Smart Junction Box, Display, C1D1 Z1, 316SST, 3/4"NPT, cULus
  • OELDBXXXXXADMAL OELD Smart Junction Box, Display, Bluetooth and Local Interface, Ex d, Aluminium, M25,ATEX/IECEx
  • OELDBXXXXXSDMAL OELD Smart Junction Box, Display, Bluetooth and Local Interface, Ex d, 316SST, M25, ATEX/IECEx
  • 029-5402-000 Rugged Smart Hand-Held (North America)
  • 029-5402-200 Rugged Smart Hand-Held (EU)
  • 029-5402-300 Rugged Smart Hand-Held (UK)
  • 029-5401-000 Zone 1 (IS) Rugged Smart Hand-Held (North America)
  • 029-5401-200 Zone 1 (IS) Rugged Smart Hand-Held (EU)
  • 029-5401-300 Zone 1 (IS) Rugged Smart Hand-Held (UK)
Accessories and Spares
  • 029-5403-000 Wall Charger for Smart Hand-Held (North America)
  • 029-5403-200 Wall Charger for Smart Hand-Held (EU)
  • 029-5403-300 Wall Charger for Smart Hand-Held (UK)
  • 029-5410-000 USB Cable with Integral Protection Device (for IS Smart Hand-Held)
  • 1226A0358 OELD/XNX Pole/Pipe Mount Kit
  • 1226A0355 OELD/XNX Ceiling Mounting Kit
  • 94000-A-1006 OELD/XNX Sunshade Kit
  • OELDVSK01 OELD General Service Kit includes O-rings and Fixings
  • OELDVSK02 OELD Terminal Block Set
  • OELDVSK04 OELD M25 Stopping Plug
  • OELDVSK05 OELD ¾"NPT Stopping Plug
  • OELDVSK06 OELD Electronics Module
  • OELDVSK07 OELD Electronics Module for increase safety versions
  • OELDVSK08 OELD Plastic Locating Post for Electronics Module
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