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  • provides a wide range of industrial gas detection systems including toxic, oxygen and combustibles, truly "state of the art" devices offering unparalleled features and capabilities along with Hazardous Area, Explosion Proof, UL, Atex and CSA certifications at a reasonable price. We also offer gas detection solutions with PLC & SCADA.

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Houston, TX USA

SKU#(146) Be the First to Review this Item

GDS  GMII-01-022-05/00-000-00/0-0


$1,545.00     Availability: 2 Weeks
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GDS GMII-01-022-05/00-000-00/0-0 (1)
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GDS GASMAX II 3-Wire Gas Detector with local stainless steel sensor head configured for Ethylene Oxide EtO (C2H4O) with range 0-50 to 0-200 ppm, 4-20 mA output transmitter with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU.

Part# with Options:        GMII-01-022-05/00-000-00/0-0
Price with Options:        1,545.00


Sensor Head (E-chem channel)
(1) Sensor Head for GDS GMII (non-reactive gases)
Gas Range
(2) Gas Range for GDS (0-50 to 0-100) EtO
Channel 2
(3) Channel 2 option for GDS GasMax II
Output Options
(4) Output Options for GDS GMII
(5) Stainless Steel Enclosure for GDS
(6) Tag for GDS
Remote JBox
(7) Remote JBox for GDS GasMax II
(8) MODBUS JBox for GDS GasMax II
Duct Mount
(9) Duct Mount for GDS GasMax II (Channel 1)
Cal Marker
(10) Cal Marker for GDS GASMAX II

  Availability 2 Weeks  ]

The GASMAX II gas monitor delivers the latest in toxic & combustible gas detection technology, reliability and ease of use.

Widest Variety of Available Sensors

Built-in dual channel electronics allow the GASMAX II to support any GDS Corp sensor or any combination of one toxic and one combustible (bridge-type) sensor. GDS Corp Smart Sensors enhance this capability by maintaining their own record of serial number, born-on date, initial calibration values, engineering units and more. Using this information, the GASMAX II constantly tracks sensor performance and calculates an estimate of sensor life remaining.

Advanced User Interface

The highly visible backlit display and high intensity alarm LEDs constantly show alarm status, calibrated engineering values and programmable tag name; a trend screen shows alarm levels and the most recent 30 minute data values. An internal real-time clock and event log time-stamp calibration and alarm events for later review. A menu-driven operator interface using magnetic keys eliminates all analog potentiometers and allows complete setup and calibration without hazardous area declassification.

Flexible Output Options

In addition to standard dual 4-20mA current loop outputs, an optional dual isolated 4-20mA output board or an RS-485 two-wire MODBUS® interface with three 5A SPDT relays are available to communicate with controllers or drive local alarm indicators. When used with the C1 Protector controller’s MODBUS master port, multiple GASMAX II monitors can be daisy-chained up to 500m to minimize wiring.


Available in both single and dual channel models, the GASMAX II is CSA and ATEX certified for use in Class I, Div 1 explosion proof installations. For low temperature applications, an Arctic Monitor option add thermostatically controlled heaters to enable operation as low as –55°C ambient.


  • CSA Certified for Class I, Div 1 explosion-proof installations
  • Monitor both toxic sensors and LEL with one detector
  • Graphic display shows values, units, trend graph, alarm levels
  • Supports both local and remote sensors for easy installation
  • Non-intrusive, prompted calibration with programmable cal gas
  • Power-up and post-calibration delays eliminate false alarms
  • Backlit display for better visibility in low light conditions
  • Options for 3x 5A alarm contacts, isolated 4-20mA and MODBUS®
  • Security settings to lock critical parameters
  • Auto-recognition of Smart Sensors uploads calibration data & more
  • Fault supervision circuitry detects failed sensor & transmits warning
  • Setup in hazardous area requires only simple magnetic wand

Power Input: 10-30VDC at < 3 watts with relay board. Additional power (4W peak) required for Arctic Monitor option.
Display Backlit 64 x 128 pixel LCD with 30-minute trend, bargraph and eunits.
Electrochemical Sensor Input Channel 1 accepts microamp-level signals from GDS Corp toxic & oxygen deficiency sensors
Bridge Type Sensor Input Channel 2 provides adjustable excitation voltage for SmartIR, PID and catalytic bead. Can be converted to 4-20mA input for use with GDS-49 or other standard 4-20mA source.
Standard Output Standard dual 3-wire 4-20mA current source. Max loop R is 750 ohms with nominal 24VDC power supply
Optional Output #1 Dual 1500CMV isolated 4-20mA current source. Max loop R is 650 ohms with nominal 24VDC.
Optional Output #2 Three Form C Relays 5A @ 30VDC / 240VAC plus RS-485 2-wire MODBUS® slave interface
Temp -25°C to +65°C (see sensor limitations)
Housing Aluminum housing with epoxy paint standard; #316 stainless steel opt
Dimensions Width 5.4” (137 mm), Height 8” (203 mm), Depth 5” (127 mm) Shipping weight 6.5 pounds (3 kg)
Approvals CSA Certified for Class I, Div 1, Grps B, C, D. Suitable for XP nstallations
ATEX Certified EX II 2 G EEx d IIB + H2 T5
Warranty 2 years from date of purchase on electronics and one year on sensors.

    10-9522-R05 Electrochemical Smart Sensor configured for Ethylene Oxide (C2H4O) with range 0-50/0-200 ppm. For GDS GASMAX EC, GASMAX II, TRANSMAX EC, TRANSMAX II with stainless steel sensor head and GDS GASMA..

    C1/SM/0000/000000/00000 C1 Multi-Point Alarm gas detector Controller with 8 or 16 channel alarm & display controller for monitoring applications. It can be configured for GAS MAX wireless gas monitors. Standard 5A SPDT common relays and up to 48 discrete relays. 1 or 2 optional..

    C2QUAD-00-00000-0-0 C2 Quad Protector Multi-Point Alarm Controller for gas detectors/transmitters with four channel alarm & display for monitoring applications. Accepts either 4 x 4-20mA, 4 x bridge-type, 2 x mA/2 bridge or wireless devices. It can be configured for GAS MAX ..

    1200-0594 GDS Gas Detector Calibration Gas Cylinder Ethylene Oxide (ETO) 50ppm. Balance Air. 58L Aluminium Cylinder. ..

    1200-0595 GDS Gas Detector Calibration Gas Kit Ethylene Oxide (ETO) 50 ppm. Balance Air. Kit includes a 58L Aluminium Cylinder of Calibration Gas, fixed flow regulator, tubing, calibration cup and carrying case. Optional Zero Air Cylinder. ..

    10-0203 GDS Sensor calibration cup for stainless steel / aluminum sensor heads ..

B2B Checkout Options: Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

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> GAS DETECTORS > ETHYLENE OXIDE :    6 Items found.
364-455-02-365-710-11 (6152) DELPHIAN  364-455-02-365-710-11

Delphian GazTell Fixed Point Electrochemical Gas Detector for Ethylene Oxide (ETO) 0-10 ppm. 4-20mA Output. Optional Modbus RTU Output and Alarm Relays. SIL2 Approval. Suitable for Class I Div 1 & 2 Groups C, D.



TM-EC-48-22-05-0 (3397) GDS  TM-EC-48-22-05-0

GDS TRANSMAX EC Loop-Powered Gas Monitor with stainless steel sensor head (optional DELRIN) and integrated sensor configured for Ethylene Oxide EtO (C2H4O) for range 0-50 to 0-200 ppm. 2-wire 4-20mA current sink output and large LCD Display. Polycarbonate housing (IP66/IP67).



TMII-48-22-05/00-00-00/0-0 (158) GDS  TMII-48-22-05/00-00-00/0-0

GDS TRANSMAX II Gas Detector with Local DELDRIN sensor head with integrated sensor configured for Ethylene Oxide EtO (C2H4O) for range 0-50 to 0-200 ppm with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU, 4-20mA output transmitter.



GM/EC-01-22-05 (134) GDS  GM/EC-01-22-05

GDS GASMAX/EC 2-Wire Gas Detector with local stainless steel sensor head explosion proof (XP) configured for Ethylene Oxide EtO (C2H4O) with range 0-50 to 0-200 ppm, 4-20 mA output transmitter.



967-12EJ90-100 (6082) DETCON  967-12EJ90-100

Detcon DM-700-C2H4O Electrochemical "Smart" Ethylene Oxide (C2H4O) 0-100 ppm Sensor Assembly with LED display. 4-20mA and Modbus RS-485 outputs. 316 Stainless Steel Housing. Water Proof, Corrosion Proof, Vibration Proof and Explosion proof. NEMA 4X. IP66. Class I, Div. 1, Groups B, C, & D. CSA and ATEX approvals.



GDS-IR-1-127-1 (1741) GDS  GDS-IR-1-127-1

GDS GDS-IR Infrared Remote Gas Detector Transmitter with Stainless steel sensor head configured for Ethylene Oxide (ETO) with range 0-50% LEL (0-1.5% Vol), 3-Wire output 4-20 mA transmitter, Explosion Proof (XP).



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