Complete Solution
Need installation, maintenance, or a bundled quote?
Our engineers can help with product selection, system design, installation, and ongoing service — all from one partner.
Quick Inquiry
Worldwide Shipping
Datasheet on Request
1-Day Quote
Sign in to view pricing
Create a free account to submit your RFQ and download technical documents.
Not sure this is the right part? Get a recommendation.
Pair with a Service
Solutions Engineering
Need guidance on product selection or system design?
Contact Our Engineering TeamDwyer Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
The Dwyer CDTA-2N000 is a CO2 detector for indoor air-quality monitoring in HVAC and building-control applications. It measures CO2 with ±50 ppm or ±5% accuracy, communicates via 2-wire RS-485 with Modbus RTU or BACnet MS/TP, and operates on 10 to 42 VDC or 10 to 30 VAC. Ideal for commercial facilities requiring networked environmental sensing.
Used in
Common applications for DwyerCombustion 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 measurement. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
You might also need
More from Dwyer
View all Dwyer parts →
Need a complete solution?
Product selection, system design, installation, and ongoing maintenance — all from one partner.