Honeywell logoE³Point®
Remote Gas Sensor
User Manual
Gas detection device

Honeywell E3Point Remote Gas Sensor -

Symbol Definitions

The following table lists the symbols used in this document to denote certain conditions:

Symbol Definition 
Honeywell E3Point Remote Gas Sensor - ATTENTION ATTENTION: Identifies information that requires special consideration.
Honeywell E3Point Remote Gas Sensor - TIP TIP: Identifies advice or hints for the user, often in terms of performing a task.
Honeywell E3Point Remote Gas Sensor - REFERENCE REFERENCE _ INTERNAL: Identifies an additional source of information within the booklet.
CAUTION Indicates a situation that, if not avoided, may result in equipment or work (data) on the system being damaged or lost, or may result in the inability to properly operate the process.
Honeywell E3Point Remote Gas Sensor - CAUTION CAUTION: Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.
CAUTION: The symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to the required information in the manual.
Honeywell E3Point Remote Gas Sensor - WARNING a situation which, if not avoided, can result in serious injury or death.
The WARNING symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to the required information in the manual.



The E³Point Remote Sensor is a toxic or combustible gas detection sensor that is compatible with the E³Point Standalone sensor. The sensor provides continuous monitoring for one of the following gases in ambient air: CO, H2S, O2, NO2, and combustible hazards.
The E³Point is designed to be mounted on an extra-wide (2 3/8”) electrical box.
The E³Point Remote Sensor is intended for connection to E³Point, Class 2, or limited power source (LPs) only.

Safety Information

Users of the E³Point Remote Sensor require a full understanding of the installation, operating, and maintenance instructions, otherwise, protection provided by the monitor may be impaired. Read the following warnings before using the monitor.


This manual must be carefully followed by all individuals who have the responsibility for using or servicing the sensor. Warranties made by Honeywell Analytics with respect to this equipment will be voided if the equipment is not used and serviced in accordance with the instructions in this manual. Additionally, equipment functionality and inherent protection may be compromised if this manual is not carefully followed. If in doubt about a procedure, contact Honeywell Analytics before proceeding.


  • Install according to local electrical regulations and codes.
  • Installation should be performed by qualified personnel.
  • Do not paint over the sensor screen
  • Ensure that the sensor screen is free of dirt and debris.
  • Ensure that the sensor screen is not covered.
  • Do not expose the monitor to electrical shock and/or continuous mechanical shock.
  • Do not expose the sensor to high-pressure water spray.
  • Do not use the monitor if it is damaged. Before use, inspect the monitor. Look for cracks and missing metals or plastics. If the monitor is damaged, contact Honeywell Analytics immediately.
  • The warranty will be voided if the customer or any unauthorized service personnel attempt to repair the unit.


Sensor Locations

The following suggestions should be considered to assure detection of the target gas. Select the most suitable location for each sensor.
Air Currents: If there are fans, wind, or other sources of air movement, gases may tend to rise or collect in certain areas of a facility. The local air currents should be assessed to aid in selecting the sensor location. Air convection can often be more important in determining gas concentration areas than factors of Vapor Density.
Gas Emission Sources: As a rule, at least one sensor should be located in close proximity to each point where emission is likely to occur.

Honeywell E3Point Remote Gas Sensor - CAUTION CAUTION: Because each sensor can “report” only what it is detecting at the moment, it is very important that the sensor be located where leaks are most likely to occur.

This unit is intended for

  • Indoor use
  • Maximum altitude 2000 m
  • Overvoltage Category II
  • Pollution degree 2
  • E³Point, Class 2, or limited power source (LPs) only
Installation Height
Detected Gas Relative Density Installation Height
(air = 1)
CO Carbon monoxide 0.968 1-1.5 m (3-5 ft.) from the floor
H3S Hydrogen sulfide 1.19 30 cm (1 ft.) from the floor
*NO2 Nitrogen dioxide 1.58 (cold) 30 cm-1 m (1-3 ft.) from the ceiling
O2 Oxygen 1.43 1-1.5 m (3-5 ft.) from the floor
COMB Most combustibles are heavier than air, with the exception of methane, hydrogen, ethylene, and acetylene. Sensors for gases that are heavier than air should be installed approximately 30 cm (1 ft) from the floor.
For combustibles that are lighter than air, sensors should be installed 30 cm (1 ft) from the ceiling, close to the potential leak source.

* May differ in certain applications. Hot NO2 from exhaust systems is lighter than ambient air.

Honeywell E3Point Remote Gas Sensor - WARNING WARNING: Some materials such as, but not limited to, tetraethyl lead, silicones, some sulfur, phosphorus, and chlorinated compounds may have a poisoning effect resulting in a loss of sensitivity.


The E³Point Remote Sensor is designed to be mounted in an extra-wide (2 3/8”) electrical box (not supplied) in the same way as a faceplate. Suggested electrical boxes include T&B BC1110, Hubbell 1110, OZ-Gedney 18112, Appleton 18112, Bowers 10612-BW, or Steel City 68371-12.
It does not fit on 4×4” steel boxes with a single gang mud ring, such as T&B 52CO or 52C13.
Run the wires through the electrical box and connect them to the remote sensor (as indicated in Figure 2).
Press the sensor (2) into the faceplate (1) and close and press the back cover (3) into the faceplate. You should hear a click.
Securely mount the unit to the extra-wide electrical box (4) using the appropriate screws (5).

Honeywell E3Point Remote Gas Sensor - Sensor Parts

Wiring Diagram

Connecting the Main Sensor to the Remote

Honeywell E3Point Remote Gas Sensor - Main Sensor to Remote

Honeywell E3Point Remote Gas Sensor - ATTENTION The OUT1 and OUT2 connectors on the remote sensor’s terminal are not used. DO NOT connect any wires to these locations.

Wire: Signal wiring should be done with #20-24 AWG shielded twisted pair cable Belden 9841 or similar. Network units should have no more than 2,000 ft (600 m) of #22 AWG wire. Smaller gauge sizes are limited by the same resistance limit. The LED on the faceplate blinks to indicate communication with the main unit.


(must be E3Point, Class 2, or limited power source [lips])
Electrochemical sensor: 10-24 VDC, 50 mA
Catalytic: 10-16 VDC, 100 mA
Operating temperature: -20°C to 50°C (-4°F to 122°F)
Operating humidity: 15 to 90% relative humidity (non-condensing)
Sensor type: The electrochemical cell (CO, NO2, H2S, 02), catalytic (Comb)
Visual indicator: Amber LED (Tx)
Size (DxWxH): 3.5 x 4.5 x 6.5 cm (1.36 x 1.75 x 2.56 in.)
Weight: 38 g (1.34 oz.)
Detection Ranges and Alarm Levels
Gas Detected Range Alarm A Alarm B Alarm C Maximum Overrange
CO Carbon monoxide 0-250 ppm 25 ppm 200 ppm 225 ppm 500 ppm
H2S Hydrogen sulfide 0-50 ppm 10 ppm 15 ppm 45 ppm 150 ppm
NO2 Nitrogen dioxide 0-10 ppm 0.7 ppm 2 ppm 5 ppm 1000 ppm
2 Oxygen 0-25 %vol 19.5 %vol. 22 %vol. 23 %vol 100 %vol
COMB Combustibles 0-100 %LEL 25 %LEL 50 %LEL 90 %LEL 100 %LEL

Maximum over the range is the cell exposure to the gas concentration that may result in permanent damage to the cell.

Sensor Overrange
When Interfacing with the E³Point Main Unit
  • Sensor over range occurs whenever the gas concentration reading is higher than the full-scale value, no matter how high the gas concentration is.
  • Overrange Warning state is latched when true. It stays activated indefinitely and is independent of gas concentration reading.
  • Refer to the E³Point Network or Standalone manual for a description of over-range conditions.
Standard Parts List

Honeywell E3Point Remote Gas Sensor - Remote Sensor Parts

Item # Description
1 point Remote Sensor faceplate
2 point sensor
3 Remote sensor back cover
4 Extra-wide rectangular J-box (not included)
5 Mounting screw (not included)

Honeywell E3Point Remote Gas Sensor - ATTENTIONTo change a sensor cartridge, disconnect all power to the device, remove the back cover, pull out the “smart sensor” cartridge, and press the replacement cartridge into place. Once the Smart Sensor is firmly in place, replace the back cover and reconnect power.
Use caution when pressing the Smart Sensor into place to avoid bending the pins.

Periodic Inspection and Maintenance

This unit requires regular inspection.n. The frequency will be determined by the operating conditions, which include extreme temperatures, exposure to contaminants, or gas. Inspect the unit and perform a gas test at least once every 6 months.
Contact a Honeywell Sales or Service representative for information about maintenance. Calibration kits with instructions are available from Honeywell.


The unit will provide years of service with minimal care.
Visually inspect at regular intervals to ensure optimum operating condition (no breakage, sensor filter not blocked or clogged, etc.)
An accurate log of all maintenance, calibration, and occurrence must be kept for the proper service of this product.
Do not expose the sensor to high-pressure water spray. Sensors should not be exposed to solvents.
Clean the exterior with a soft, damp cloth. Do not use solvents soaps or polishes.
Do not immerse the unit in liquids.

Sensor Life Span

Sensor life span may be affected by certain operating conditions or by exposure to concentrations higher than the detection range.

Sensor Type Life Span Specification (typical)
CO 6 years, normal use at temperatures >-10°C
H2S 3 years, in air
NO2 3 years, in air
2 3 years until readings are 85% of the original 20.9% input
COMB 3 years, in air

Limited Warranty
Honeywell Analytics Inc. warrants to the original purchaser and/or ultimate customer (“Purchaser”) of Honeywell products (“Product”) that if any part thereof proves to be defective in material or workmanship within one (1) year, such defective part will be repaired or replaced, free of charge, at Honeywell Analytics’ discretion if shipped prepaid to Honeywell Analytics at 4005 Matte Blvd., Suite G, Brossard, Quebec, Canada, J4Y 2P4, in a package equal to or in the original container.
The Product will be returned freight prepaid and repaired or replaced if it is determined by Honeywell Analytics that the part failed due to defective materials or workmanship. The repair or replacement of any such defective part shall be Honeywell Analytics’ sole and exclusive responsibility and liability under this limited warranty.

Re-Stocking Policy
The following re-stocking fees will apply when customers return products for credit:
A 15% re-stocking fee will be applied if the product is returned within 1 month following the shipping date. 30% re-stocking fee will be applied if the product is returned within 3 months following the shipping date. A full credit (less re-stocking fee) will be issued only if the product is in perfect working condition. If repairs are required on the returned product, the cost of these repairs will be deducted from the credit to be issued.
No credits will be issued beyond the three-month period.

If gas sensors are part of the Product, the gas sensor is covered by a twelve (12) month limited warranty of the manufacturer.
If gas sensors are covered by this limited warranty, the gas sensor is subject to inspection by Honeywell Analytics for extended exposure to excessive gas concentrations if a  laim
by the Purchaser is made under this limited warranty. Should such inspection indicate that the gas sensor has been expended rather than failed prematurely, this limited warranty shall not apply to the Product.
This limited warranty does not cover consumable items, such as batteries, or items subject to wear or periodic replacement, including lamps, fuses, valves, vanes, sensor elements, cartridges, or filter elements.

Warranty Limitation and Exclusion
Honeywell Analytics will have no further obligation under this limited warranty. All warranty obligations of Honeywell Analytics are void if the Product has been subject to abuse, misuse, negligence, or accident, or if the Purchaser fails to perform any of the duties set forth in this limited warranty or if the Product has not been operated in accordance with instructions, or if the
The product serial number has been removed or altered.

Disclaimer of Unstated Warranties
The warranty printed above is the only warranty applicable to this purchase. All other warranties, express or implied, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose are hereby disclaimed.

Limitation of Liability
It is understood and agreed that Honeywell Analytics’ liability, whether in contract, in tort, under any warranty, in negligence, or otherwise shall not exceed the amount of the purchase price paid by the purchaser for the product, and under no circumstances shall Honeywell Analytics be liable for special, indirect, or consequential damages. The price stated for the product is a consideration limiting Honeywell Analytics’ liability.
No action, regardless of form, arising out of the transactions under this warranty may be brought by the purchaser more than one year after the cause of actions has occurred.

Honeywell logoFind out more
Pour renseignements
Honeywell Analytics Inc.
4005 Matte, Suite G
Brossard, Quebec
Canada, H4Y 2P4
Technical Services/ Services
[email protected]

1998M0773 revision 4
©2013 Honeywell Analytics

Documents / Resources

Honeywell E3Point Remote Gas Sensor [pdf] User Manual
E3Point Remote Gas Sensor, E3Point, Remote Gas Sensor

Leave a comment

Your email address will not be published.