Dwyer 641RM-12-LED Air Velocity Transmitter, 250-15000 fpm, 4-20 mA Output
The DWYER 641RM-12-LED is an air velocity transmitter with a 4 mA to 20 mA output, operating from 32°F to 140°F and measuring 250 fpm to 15,000 fpm. It offers an air velocity accuracy of +/-3% from 32 to 122 °F. This…
SKU 3G-OTH-168003
Also listed as: 641RM12LED · 641RM 12 LED
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
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Product Description
The DWYER 641RM-12-LED is an air velocity transmitter with a 4 mA to 20 mA output, operating from 32°F to 140°F and measuring 250 fpm to 15,000 fpm. It offers an air velocity accuracy of +/-3% from 32 to 122 °F. This model does not include a calibration certificate.
Frequently Asked Questions
What is the Dwyer 641RM-12-LED air velocity transmitter used for?
The Dwyer 641RM-12-LED measures air velocity from 250 fpm to 15,000 fpm in HVAC, cleanroom, and industrial ventilation systems. It outputs a 4 mA to 20 mA signal for remote monitoring and control of airflow in ducts or fume hoods.
What are the specifications of the Dwyer 641RM-12-LED?
The Dwyer 641RM-12-LED has an air velocity accuracy of +/-3% from 32 to 122 °F, operates from 32°F to 140°F, and measures 250 fpm to 15,000 fpm. It provides a 4 mA to 20 mA output and does not include a calibration certificate.
Where to buy the Dwyer 641RM-12-LED worldwide?
3G Electric supplies the Dwyer 641RM-12-LED air velocity transmitter worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the Dwyer 641RM-12-LED air velocity transmitter?
Mount the Dwyer 641RM-12-LED in a duct with the sensor tip facing airflow. Connect the 4 mA to 20 mA output to a compatible controller or PLC. Ensure ambient temperature stays within 32°F to 140°F. Calibration is recommended periodically; this model ships without a certificate.
Used in
Common applications for DwyerDwyer Products
3G Electric supplies Dwyer air velocity transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
