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Honeywell Midas® Gas Detector


Honeywell Analytics Midas® Gas Detector.

The Midas® Gas Detector detects more than 35 gases — easily, quickly and error-free. All with extended sensor calibration periods, patented diagnostics and lower cost of ownership.

The Midas Gas Detector uses reliable sensor technology to detect many key toxic, ambient and flammable gases in a plant. The device monitors points up to 100 feet (30 meters) away while using patented technology to regulate flow rates and ensure error-free gas detection. Thanks to Honeywell’s use of advanced robotics, the Midas Gas Detector offers unbeatable quality and reliability:

Improved visibility and ease of use

The Midas Gas Detector is equipped with bright LED lights and an intuitive, interactive interface that provides instant alerts to gas readings or alarm levels. The interface also includes password-protected menus for configuration, test and calibration.

Easy installation

Compact in size with an easy-to-handle metal chassis, the Midas Gas Detector is simple to install. That’s especially important in crowded, complex process environments where space is at a premium.

A complete solution

The Midas Gas Detector is complemented by our innovative Chemcassette® technology, which detects ultrasensitive toxic gases at low parts-per-billion (ppb) levels. And we offer the support of a worldwide network of service engineers who operate on a 24/7 basis.

Numerous applications

With feature-rich capabilities that are easy to use, the Midas Gas Detector is suitable for many industry applications, including semiconductor processing, light industrial manufacturing, university laboratories, aerospace, wastewater and more.

Typical Applications:

  • - Hospitals
  • - School Labs
  • - Chemical Storage Areas

LonWorks Module for Midas Transmitter

This optional LonWorks interface module mounts to and connects with any single, univeral Midas extractive transmitter with or without Pyrolyzer to provide youa bi-directional LonWorks connectivity; remote reset and remote control of onboard relays. Unit is 24V DC powered and provides power and communicatino directly to attached Midas trasnmitter using a ethernet cross-over cable (supplied). It includes a Quick Start Guide and a mounting bracket to the Midas transmitter. rear panel installation and screws are not supplied. 

*Quad LonWorks Module Available ( Call to Order)

HONMIDAS-T-NP1Honeywell Midas Datasheet

Honeywell Midas Brochure

Transmitter & Sensor Combo Kit Range Part Number
Ammonia (NH3) 9-100 ppm MIDAS-K-NH3

Arsine (AsH3),
Germane (GeH4)

18-200 ppb
70-800 ppb


Boron Trichloride (BCl3), Dichlorosilane (H2Cl2Si), Hydrogen Bromide (HBr),
Hydrogen Chloride (HCl)

0.72-8 ppm MIDAS-K-HCL

Boron Trfluoride (BF3), Hydrogen Fluoride (HF) Low Level (LDL = 0.22 ppm),
Tungsten Hexafluoride (WF6) (Low)

0.18-2 ppm MIDAS-K-HFL

Boron Trifluoride (BF3),
Hydrogen Fluoride (HF),
Tungsten Hexafluoride (WF6)

0.72-8 ppm
1.05-12 ppm
1.05-12 ppm

Bromine (Br2), Chlorine Dioxide (ClO2) 0.036-0.4 ppm MIDAS-K-BR2
Carbon Dioxide (CO2) 0.15-2.0% MIDAS-K-CO2
Carbon Monoxide (CO) 9-100 ppm MIDAS-K-COX

Chlorine (Cl2),
Fluorine (F2)

0.18-2 ppm
0.36-4 ppm

Diborane (B2H6) 36-400 ppb MIDAS-K-B2H
Hydrogen (H2) 90-1000 ppm MIDAS-K-H2X
Hydrogen Cyanide (HCN) 1.8-20 ppm MIDAS-K-HCN
Hydrogen Sulfide (H2S) 3.6-40 ppm MIDAS-K-H2S
Hydrogen (H2), Methane (CH4) 6.5-100% LEL MIDAS-K-LEL
Nitric Oxide (NO) 9-100 ppm MIDAS-K-NOX
Nitrogen Dioxide (NO2) 1.05-12 ppm MIDAS-K-NO2
Oxygen (O2), 3 year warranty 0.2-25% v/v MIDAS-K-O2S
Ozone (O3) 0.036-0.4 ppm MIDAS-K-O3X
Phosphine (PH3) 110-1200 ppb MIDAS-K-PH3
Silane (SiH4) (Low Level) 0.18-2 ppm MIDAS-K-SHL
Silane (SiH4), Disilane (Si2H6) 1.8-20 ppm MIDAS-K-SHX
Sulfur Dioxide (SO2) 0.7-8 ppm $ MIDAS-K-SO2
TEOS 3.6-40 ppm MIDAS-K-TEO

Nitrogen Trifluoride (NF3),
Methyl Fluoride (CH3F)

3-40 ppm
6-120 ppm

LonWorks Module Description Part Number
MIDAS LonWorks Interface Module MIDAS-T-LON


  • -Over 35 gases available with extended 2 year warranty*
  • -Smart sensor cartridge with on board ‘e-calibration’ certificate
  • -3 built in relays (Form C) for Alarm 1, 2 and Fault
  • -Power over Ethernet (PoE) communication
  • -Keypad interface and remote web browser interface
  • -Optional Midas Pyrolyzer module that connects to any Midas Gas Detector
  • -Password protected menu levels to preserve system integrity
  • -Bright LEDs and intuitive icon driven, large multicolor backlit LCD display
  • -Factory-calibrated sensors to reduce need for frequent gas testing
  • -Isolated 0-22 mA analog output with fault and event reporting
  • -Modbus/TCP Ethernet for easy connectivity to all control and alarm systems ports for control connectivity and service interaction
  • -Robust extractive pump system (2 year lifetime) sampling up to 100 feet
  • -CE marked for total immunity to Radio Frequency Interference
  • -Reflex® sensor health check for improved safety
  • -TempraSureTM temperature compensation technology as appropriate
  • -Event logging to review sensor history