We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
DWYER Carbon Monoxide Transmitter/Switch: Carbon Monoxide, CE Compliant/RoHS Compliant - Fixed Gas Detectors with Transmitters
DWYERFixed Gas Detectors with Transmitters

DWYER Carbon Monoxide Transmitter/Switch: Carbon Monoxide, CE Compliant/RoHS Compliant

The DWYER CMS300 is a wall-mounted carbon monoxide detector transmitter that monitors CO levels from 0 to 300 ppm. It operates on low voltage (12 to 24V AC, 12 to 32V DC) and is CE and RoHS compliant. This fixed gas…

SKU 3G-OTH-554832

Brand
DWYER
Item
Carbon Monoxide Transmitter/Switch: Carbon Monoxide, CE Compliant/RoHS Compliant
Category
Fixed Gas Detectors with Transmitters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

DWYER
Manufacturer Part Number
CMS300
Type
CE Compliant/RoHS Compliant, Gas Detector
Voltage
Low Voltage (12 to 24V AC, 12 to 32V DC)
Gas Detected
Carbon Monoxide
Product Type
Detector Transmitter
Measurement Range
Carbon Monoxide (0 to 300 ppm)
Mounting Location
Wall
Operating Voltage
15 to 32V AC
Includes Calibration Certificate
No
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

DWYER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER CMS300 is a wall-mounted carbon monoxide detector transmitter that monitors CO levels from 0 to 300 ppm. It operates on low voltage (12 to 24V AC, 12 to 32V DC) and is CE and RoHS compliant. This fixed gas detector transmitter is designed for continuous monitoring in industrial environments.

Frequently Asked Questions

What is the DWYER CMS300 carbon monoxide transmitter used for?

The DWYER CMS300 is a wall-mounted fixed gas detector transmitter that continuously monitors carbon monoxide levels from 0 to 300 ppm in industrial environments. It provides a signal output for integration with building management or safety systems, helping protect personnel from CO exposure.

What are the specifications of the DWYER CMS300?

The DWYER CMS300 detects carbon monoxide over a 0 to 300 ppm range. It operates on low voltage (12 to 24V AC, 12 to 32V DC) and is CE and RoHS compliant. The unit is wall-mounted and does not include a calibration certificate.

Where to buy the DWYER CMS300 worldwide?

3G Electric supplies the DWYER CMS300 carbon monoxide transmitter to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fixed gas detector transmitter.

How to install the DWYER CMS300 carbon monoxide detector?

Mount the DWYER CMS300 on a wall at a height recommended for CO detection, typically 5 feet above the floor. Connect low-voltage power (12 to 24V AC or 12 to 32V DC) per the wiring diagram. Follow local codes and the manufacturer's manual for proper placement and commissioning.

Used in

Common applications for DWYER
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

DWYER Products

3G Electric supplies DWYER fixed gas detectors with transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from DWYER

View all DWYER parts →
DWYER Carbon Dioxide/RH/Temperature Transmitter: Building Management Controllers, Carbon Dioxide, 4X (MPN CDTR-2D4A4). Key specifications — Brand: DWYER; Operating Voltage: 16 to 35V DC/19 to 28V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Detector Transmitter; Mounting Location: Duct; For Use With: Building Management Controllers; Series: CDTR.
DWYER
DWYER Carbon Dioxide/RH/Temperature Transmitter: Building Management Controllers, Carbon Dioxide, 4X (MPN CDTR-2D4A4). Key specifications — Brand: DWYER; Operating Voltage: 16 to 35V DC/19 to 28V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Detector Transmitter; Mounting Location: Duct; For Use With: Building Management Controllers; Series: CDTR.
DWYER Gas Transmitter: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector, CO, Wall, 2 yr (MPN GSTA-C). Key specifications — Brand: DWYER; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 200 or 0 to 500 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: No.
DWYER
DWYER Gas Transmitter: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector, CO, Wall, 2 yr (MPN GSTA-C). Key specifications — Brand: DWYER; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 200 or 0 to 500 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: No.
DWYER Carbon Monoxide Transmitter/Switch: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector (MPN CMS300-FC). Key specifications — Brand: DWYER; Operating Voltage: 15 to 32V AC; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 300 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Includes Calibration Certificate: Yes; Voltage: Low Voltage (12 to 24V AC, 12 to 32V DC).
DWYER
DWYER Carbon Monoxide Transmitter/Switch: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector (MPN CMS300-FC). Key specifications — Brand: DWYER; Operating Voltage: 15 to 32V AC; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 300 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Includes Calibration Certificate: Yes; Voltage: Low Voltage (12 to 24V AC, 12 to 32V DC).
DWYER Carbon Dioxide/Temperature Transmitter: Building Management Controllers, Carbon Dioxide, CO2 (MPN CDT-2D44). Key specifications — Brand: DWYER; Operating Voltage: 16 to 35V DC/19 to 28V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Detector Transmitter; Mounting Location: Duct; For Use With: Building Management Controllers; Series: CDT.
DWYER
DWYER Carbon Dioxide/Temperature Transmitter: Building Management Controllers, Carbon Dioxide, CO2 (MPN CDT-2D44). Key specifications — Brand: DWYER; Operating Voltage: 16 to 35V DC/19 to 28V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Detector Transmitter; Mounting Location: Duct; For Use With: Building Management Controllers; Series: CDT.
DWYER Gas Transmitter: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector, CO, Wall, 2 yr (MPN GSTA-C-FC). Key specifications — Brand: DWYER; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 200 or 0 to 500 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: Yes.
DWYER
DWYER Gas Transmitter: Carbon Monoxide, CE Compliant/RoHS Compliant, Gas Detector, CO, Wall, 2 yr (MPN GSTA-C-FC). Key specifications — Brand: DWYER; Gas Detected: Carbon Monoxide; Measurement Range: Carbon Monoxide (0 to 200 or 0 to 500 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: Yes.
DWYER Carbon Dioxide Detector: Carbon Dioxide, BTL Listed/CE Compliant/RoHS Compliant, Gas Detector (MPN CDTA-5N000). Key specifications — Brand: DWYER; Operating Voltage: 10 to 42V DC/10 to 30V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 5000 ppm); Product Type: Fixed Gas Detector; Mounting Location: Wall; Series: CDTA; Includes Calibration Certificate: No.
DWYER
DWYER Carbon Dioxide Detector: Carbon Dioxide, BTL Listed/CE Compliant/RoHS Compliant, Gas Detector (MPN CDTA-5N000). Key specifications — Brand: DWYER; Operating Voltage: 10 to 42V DC/10 to 30V AC; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 5000 ppm); Product Type: Fixed Gas Detector; Mounting Location: Wall; Series: CDTA; Includes Calibration Certificate: No.
DWYER Gas Transmitter: Nitrogen Dioxide, CE Compliant/RoHS Compliant, Gas Detector, NO2, Wall, 2 yr (MPN GSTA-N). Key specifications — Brand: DWYER; Gas Detected: Nitrogen Dioxide; Measurement Range: Nitrogen Dioxide (0 to 10 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: No.
DWYER
DWYER Gas Transmitter: Nitrogen Dioxide, CE Compliant/RoHS Compliant, Gas Detector, NO2, Wall, 2 yr (MPN GSTA-N). Key specifications — Brand: DWYER; Gas Detected: Nitrogen Dioxide; Measurement Range: Nitrogen Dioxide (0 to 10 ppm); Product Type: Detector Transmitter; Mounting Location: Wall; Series: GSTA; Includes Calibration Certificate: No.
DWYER Carbon Dioxide Sensor: Carbon Dioxide, BTL Listed/CE Compliant, Gas Detector, CO2, Wall, 15 yr (MPN CDTC-2N000-LCD). Key specifications — Brand: DWYER; Operating Voltage: 10 to 42V DC/10 to 30V AC; Display Type: Digital; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Fixed Gas Detector; Mounting Location: Wall; Series: CDTC.
DWYER
DWYER Carbon Dioxide Sensor: Carbon Dioxide, BTL Listed/CE Compliant, Gas Detector, CO2, Wall, 15 yr (MPN CDTC-2N000-LCD). Key specifications — Brand: DWYER; Operating Voltage: 10 to 42V DC/10 to 30V AC; Display Type: Digital; Gas Detected: Carbon Dioxide; Measurement Range: Carbon Dioxide (0 to 2000 ppm); Product Type: Fixed Gas Detector; Mounting Location: Wall; Series: CDTC.