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

RELAYS

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 :    43 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.



$75.60 
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 ... more

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70-2900-0500-1
(7302)

AIMSAFETY  70-2900-0500-1

AimSafety PM100 Portable Gas Detector (Two Year Disposable) for Carbon Monoxide (CO) 0-500 ppm. LCD display. Audible, visual and vibrating alarms. IP67. UL & CSA Class I Div 1, Div 2, ATEX, IECEx, INMETRO.



$136.00 
M015-0001-000
(6333)

MPOWER  M015-0001-000

mPower UNI 321 Disposable Single Gas Detector for detection of Carbon Monoxide (CO) 1-500 ppm. Optional 24 or 36 months of life. Large LCD display will show time remaining or low/high alarm levels when hit, 6 Bright Red Flashing LED, ... more

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$140.18 
M001-0023-000
(5994)

MPOWER  M001-0023-000

mPower UNI MP100 Portable Single Gas Detector for detection of Carbon Monoxide (CO) 0-1000 ppm. Includes large LCD display, 6 Bright Red Flashing LED, Vibrating and 90dB Audible Alarm Port. IP67, Event Logger, ATEX and UL approval for Class ... more

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$153.08 
PPS+-CO
(6813)

PROSENSE  PPS+-CO

Prosense PPS+-CO Addressable Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with range 0-300 ppm, 0-500 ppm or 0-1000 ppm. ABS Plastic housing. Modbus RS485 RTU output. IP54. For Parking Garages and Tunnels. PPS+ detectors cannot be used ... more

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$155.52 
TX1-1
(5965)

INDUSTRIAL SCIENTIFIC  TX1-1

Industrial Scientific Tango TX1 Gas Detector for Carbon Monoxide (CO) 1-1000 ppm. DualSense 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. ... more

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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. ... more

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CX-6-CO
(7310)

MACURCO  CX-6-CO

Macurco CX-6-CO 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 ... more

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$410.55 
SV-4404
(7376)

PROSENSE  SV-4404

Prosense SafeVader SV-4404 Fixed Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with range 0-300 ppm to 0-5000 ppm. 4-20 mA Analog, Modbus RS485 RTU and relay outputs (Alarm1, Alarm2, Fault). 12 to 28VDC. ABS Plastic enclosure. IP54.

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$417.13 
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. 4-20 mA Analog and Modbus RS485 RTU outputs. Optional Relay Outputs. IP65, Zone 2.

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$476.29 
CX-12-CO
(7311)

MACURCO  CX-12-CO

Macurco CX-12-CO 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 ... more

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$478.17 
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 ... more

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$509.22 
CM-12
(3415)

MACURCO  CM-12

MACURCO CM-12 line voltage Gas Detector, controller and transducer for Carbon Monoxide (CO) 0-200 ppm. Selectable 4-20 mA output, buzzer, alarm and fan relays with digital display. 100 to 240 VAC 50-60Hz power. ETL Listed to UL 61010-1, UL 2075 ... more

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$536.13 
P-4434
(6777)

PROSENSE  P-4434

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

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$631.82 
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. 4-20 mA Output. Optional Modbus RTU Output and Alarm Relays. SIL2 Approval. Suitable for Class I Div 1 & 2 Groups C, D.

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PQN-4434-1/2
(6949)

PROSENSE  PQN-4434-1/2

Prosense PQN-4434 Gas Detector with Electrochemical sensor for Carbon Monoxide (CO) with ranges 0-300 ppm, 0-500 ppm or 0-1000 ppm. Ex-proof housing and SS316 stainless steel sensor head. 4-20 mA Analog and Modbus RS485 RTU outputs, Optional Alarm Relay ... more

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$894.26 
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 ... more

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$944.90 
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