Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Image not available
DwyerMeasurement

Dwyer CO detector replacement A-505

Dwyer CO Detector Replacement A-505

SKU 3G-CBM-02416

Also listed as: A 505 · A-505

Brand
Dwyer
Item
CO detector replacement A-505
Part Number
A505
Category
Measurement
UNSPSC
41112412 — Pressure gauge
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
A505

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

Dwyer CO Detector Replacement A-505

Frequently Asked Questions

What is the Dwyer A-505 CO detector replacement used for?

The Dwyer A-505 is a replacement carbon monoxide sensor module for Dwyer Series A-500 and A-501 CO detectors. It is used in commercial and industrial environments to continuously monitor CO levels for safety compliance and ventilation control.

What are the specifications of the Dwyer A-505 CO detector replacement?

The Dwyer A-505 is a plug-in replacement sensor module designed for Dwyer Series A-500 and A-501 CO detectors. It operates on 24 VAC/VDC power and provides a 4-20 mA output signal proportional to CO concentration. Refer to the Dwyer manual for full range and accuracy details.

Where to buy the Dwyer A-505 CO detector replacement in Singapore?

3G Electric supplies the Dwyer A-505 CO detector replacement to Singapore. We source and deliver this Dwyer sensor module, handling logistics and customs clearance so you receive it ready for installation. Contact us for current lead time and pricing.

How to install the Dwyer A-505 CO detector replacement?

To install the Dwyer A-505, first disconnect power to the Dwyer Series A-500 or A-501 detector. Remove the old sensor module and plug in the A-505 replacement, ensuring proper alignment. Restore power and allow the sensor to stabilise before verifying output signal per Dwyer's instructions.

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
Not sure this is the right part? Photo-identify it

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

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
A-505A replacement CO sensor
Dwyer
A-505A replacement CO sensor
Dwyer
Dwyer
NO2 sensor replacement A-506
CO2 detector Modbus CDTA-5N000
Dwyer
CO2 detector Modbus CDTA-5N000
CO2 detector Modbus CDTA-2N000
Dwyer
CO2 detector Modbus CDTA-2N000
CO2 detector Modbus CDTA-5N000-LCD
Dwyer
CO2 detector Modbus CDTA-5N000-LCD
CO2 detector Modbus CDTA-2N000-LCD
Dwyer
CO2 detector Modbus CDTA-2N000-LCD

More from Dwyer

View all Dwyer parts
Dwyer
Dwyer
Average flow probe PAFS-1005
Dwyer
Dwyer
Average flow probe PAFS-1003
Dwyer
Dwyer
Average flow probe PAFS-1008
Dwyer
Dwyer
Average flow probe PAFS-1010
Dwyer
Dwyer
Probe AVG PT100 OHM RTD L.65 AVG-21241
Magnehelic manometer 2000-20KPA
Dwyer
Magnehelic manometer 2000-20KPA
Red external static pressure sensor A-306
Dwyer
Red external static pressure sensor A-306
Dwyer
Dwyer
AVU air velocity probe 8M/S 0/10V AVU-2-V

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first