Macurco Cm-21a | Carbon Monoxide | Gas Detectors (general-purpose) | Gasdetectorsusa
Gas Leak and Flame Detectors, Analyzers, Alarm Devices and Calibration Gas

MACURCO   CM-21A

SKU# (633)
MACURCO CM-21A

DETECTORS / GAS DETECTORS (GENERAL-PURPOSE)
CARBON MONOXIDE

  • DESCRIPTION
  • FEATURES
  • SPECIFICATIONS
  • LITERATURE
MACURCO CM-21A is a low voltage, dual relay Carbon Monoxide (CO) gas detector and controller. The CM-21A uses an electronic detection system to measure the concentration of CO and provide automatic exhaust fan control to help ensure a safe environment in parking garages or maintenance facilities. The CM-21A is factory calibrated and 100 % tested for proper operation, but can also be calibrated in the field.********DISCONTINUED********** Replaced by CM-6

Inquiry

REPLACED BY CM-6

FEATURES:
  • CM-21A provides CO detection and automatic exhaust fan control for automotive maintenance facilities, enclosed parking garages, warehouses with forklifts, etc.
  • Selectable fan and alarm relay activation
  • 5 amp SPDT fan relay controls starters of exhaust fans
  • 1/2 amp N.O. or N.C. alarm relay connects to warning devices or control panels
  • CM-21A mounts on a standard 4x4 electrical box and becomes cover for the box
  • Supervised system: any internal detector problem will cause the fan relay to activate
  • Optional calibration kit is available. One screw allows access for calibration

CM-21A Specifications
Power 3 watts from 12 to 24 VAC or VDC
Current 12 V - 0.25 amps, 24 V - 0.12 amps
Shipping Weight 1 pound
Size 4 1/2 x 4 x 2 1/8 inches
Color Grey
Connections 7 each #20 wires, 6 inches long
Voltage 10 to 26 VAC or VDC
Mounting box (not included) 4x4 electric
Fan Relay standard 4 x 4 elec. box
Fan relay actuation selectable at 25ppm, 35ppm (default), 50ppm or 100ppm CO within 5 min.
Alarm Relay 0.5 amp 200 V, 10 VA
Alarm Relay Actuation selectable at 100ppm CO within 3 hours or 200ppm CO within 10 min.
Operating Environ 0 to 125 F, 10 to 90 % RH
Buzzer Output: 85 dBA at 10cm settable to off (default) or on

 Info/Quote Request
 Reseller & Volume Discounts

> CARBON MONOXIDE :    37 Items found.
CM-E1
(638)

MACURCO  CM-E1

Macurco CM-E1 Carbon Monoxide gas detector for residential and commercial office environment. Flush or surface mount options, alarm and trouble relays, and 85 dB buzzer. 9-32 VDC input. NFPA 720-2009 and UL 2075 listed. CSFM Approved.



$66.15 
M015-0001-000
(6333)

MPOWER  M015-0001-000

mPower UNI 321 Disposable Single Gas Detector for detection of Carbon Monoxide (CO) 1-500ppm. Up to 36 months of live. Large LCD display will show time remaining or low/high alarm levels when hit, 6 Bright Red Flashing LED, Vibrating and 90dB Audible Alarm Port. IP67, Event Logger, ATEX and UL approval for Class I Div 1.

Configure

$108.80 
BWC2-M
(4265)

BW  BWC2-M

BW Clip portable gas detector 2 year maintenance free for Carbon Monoxide CO. Low alarm set between 25ppm and 50 ppm, High alarm set between 50ppm and 200 ppm. UL approved for Class I Div 1. ATEX, CE, EC and IECEx approved.

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M001-0023-000
(5994)

MPOWER  M001-0023-000

mPower UNI MP100 Portable Single Gas Detector for detection of Carbon Monoxide (CO) 0-500ppm to 0-2000ppm. Includes large LCD display, 6 Bright Red Flashing LED, Vibrating and 90dB Audible Alarm Port. IP67, Event Logger, ATEX and UL approval for Class I Div 1.

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$134.40 
PPS+-CO
(6813)

PROSENSE  PPS+-CO

Prosense PPS+-CO Addressable Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with range 0-300ppm, 0-500ppm or 0-1000ppm. ABS Plastic housing. Modbus RS485 RTU output. IP54. For Parking Garages and Tunnels.

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$214.50 
PPS-RCO
(6811)

PROSENSE  PPS-RCO

Prosense PPS-RCO Addressable Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with range 0-300ppm. ABS Plastic housing. Relay outputs. IP54. For Parking Garages and Tunnels.



$214.50 
TX1-1
(5965)

INDUSTRIAL SCIENTIFIC  TX1-1

Industrial Scientific Tango TX1 Gas Detector for Carbon Monoxide (CO) 1-1000 ppm. DualSenseŽ Technology. 2-year run time. Includes LCD Display and 100dB audible alarm. Polycarbonate enclosure. IP66 & IP67. ATEX, CSA, IECEx, UL & INMETRO Approvals.

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BWC2R-M
(5149)

BW  BWC2R-M

BW Clip Real Time portable gas detector with 2 year maintenance free for Carbon Monoxide (CO). Configurables Low and high alarm (ppm). One-button operation. Designed for harsh environments and extreme temperatures. Includes a real-time gas level display. IP66 / IP67. UL approved for Class I Div 1. ATEX, CE, EAC Ex and IECEx approved.

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BWC3R-M
(5153)

BW  BWC3R-M

BW Clip Real Time portable gas detector with 3 year maintenance free for Carbon Monoxide (CO). Configurables Low and high alarm (ppm). One-button operation. Designed for harsh environments and extreme temperatures. Includes a real-time gas level display. IP66 / IP67. UL approved for Class I Div 1. ATEX, CE, EAC Ex and IECEx approved.

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LC-1112-A-000-1
(2913)

INTEC  LC-1112-A-000-1

Intec Controls PolyGard LC-1112 V3 Analog Gas Transmitter for Carbon Monoxide (CO) 0-150 / 0-200 / 0-250 / 0-300 ppm. 1 4-20mA & 2-10V analog output. Wall mounted. NEMA 4X Enclosure. UL Listed and CSA Certified.

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$327.00 
BWS1-ML-Y
(6383)

BW  BWS1-ML-Y

BW Solo Serviceable Single-gas Detector for Carbon Monoxide (CO) 0-2000 ppm. Small and lightweight. One button operation, 3.6V 1.65Ah Lithium Battery. Visual, vibrating and audible alarms. Optional wireless version. IP66/68. ATEX, IECEx and CSA approvals for Class I Div 1.

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PC3-4424
(6802)

PROSENSE  PC3-4424

Prosense PC3-4424 Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with range 0-300 ppm. Epoxy painted aluminum housing and Nickel Plated Brass sensor head. 4-20mA Analog and Modbus RS485 RTU outputs. Optional Relay Outputs. IP65, Zone 2.

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$463.32 
CM-6
(637)

MACURCO  CM-6

MACURCO CM-6 low voltage gas detector, controller and transducer for Carbon Monoxide (CO) 0-200 ppm. Selectable 4-20 mA output, buzzer, alarm and fan relays with digital display. 12 to 24 VAC or 12 to 32 VDC power. ETL Listed to UL 61010-1. Optional LADBS approval.

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$481.90 
CM-12
(3415)

MACURCO  CM-12

MACURCO CM-12 line voltage Gas Detector, controller and transducer for Carbon Monoxide (CO) 0-200 ppm. Selectable 4-20mA output, buzzer, alarm and fan relays with digital display. 100 to 240 VAC 50-60Hz power. ETL Listed to UL 61010-1.

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$494.01 
P-4434
(6777)

PROSENSE  P-4434

Prosense P-4434 Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with ranges 0-300ppm to 0-1000ppm. Ex-proof housing and SS316 stainless steel sensor head. 4-20mA Analog and Modbus RS485 RTU outputs, optional Relay card. ATEX/IECEx approval (Zone 1 or Zone 2). IP65, Optional IP66 Adaptor.

Configure

$540.54 
364-455-01-365-796-110100
(6150)

DELPHIAN  364-455-01-365-796-110100

Delphian GazTell Fixed Point Electrochemical Gas Detector for Carbon Monoxide (CO) 0-100, 0-300 or 0-1000 ppm. 4-20mA Output. Optional Modbus RTU Output and Alarm Relays. SIL2 Approval. Suitable for Class I Div 1 & 2 Groups C, D.

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SPSTAXC1
(1477)

HONEYWELL  SPSTAXC1

Honeywell Zareba Sensepoint Gas Detector Transmitter for Carbon Monoxide (CO) with pre-wired universal junction box (1 threaded M20, 1 clearance 3/4"NPT, 1 clearance 1/2" NPT, 3 approved stopping plugs, earth continuity plate) and factory set toxic gas sensor. 2 wire 4-20mA loop output. ATEX Approved. (Optional ranges: 0-200 ppm, 0-500 ppm)

Configure

$719.15 
PQN-4434-1/2
(6949)

PROSENSE  PQN-4434-1/2

Prosense PQN-4434 Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with ranges 0-300ppm, 0-500ppm or 0-1000ppm. Ex-proof housing and SS316 stainless steel sensor head. 4-20mA Analog and Modbus RS485 RTU outputs, optional Relay card. ATEX/IECEx (Zone 1, Zone 2 or M2), UL/CSA (Class I Div 1), UKCA or INMETRO approval, optional SIL2. IP65, Optional IP66 Adaptor and remote display.

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$720.72 
OI-6000-EC-CO-X-R_-DC-C
(6832)

OTIS  OI-6000-EC-CO-X-R-DC-C

Otis Instruments OI-6000 Gas Leak Detector with electrochemical sensor for Carbon Monoxide (CO) 0-1000ppm. Non explosion proof. Wired power (3-Wire) (12 to 35 VDC) with 4-20 mA analog, RS-485 Modbus and 2 relay outputs. 3 Push-Button Interface. IP 66/67. Optional radio. UL Approved.

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PQD-4434-1/2
(6738)

PROSENSE  PQD-4434-1/2

Prosense PQD-4434 Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with ranges 0-300ppm, 0-500ppm or 0-1000ppm. Ex-proof housing and SS316 stainless steel sensor head. 4-20mA Analog and Modbus RS485 RTU outputs, optional Relay card. OLED Display. ATEX/IECEx (Zone 1, Zone 2 or M2), UL/CSA (Class I Div 1), UKCA or INMETRO approval, optional SIL2. IP65, Optional IP66 Adaptor.

Configure

$875.16 
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CM-21A
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