Dwyer Ms-121 Pressure Transmitter buy online at trade prices  feedback | view cart | contact us | faq | home
MyTub - Plumbing, Parts and Spares, Drainage and Heating trade supply specialists
Shopping cart
You have no items
in your trolley.
SubTotal : £0.00

Contact MyTub for plumbing supplies 0844 556 1818


Plumbing Trade prices delivered to your door

Upto 60% off RRP
Wednesday 8, July 2026
login / register
 
  Departments
Bathroom & Kitchen Bathroom & Kitchen Supplies
Heating System Supplies Heating System Supplies
Industrial Gas Controls Industrial Gas Controls
Aidelle Flue Dilution Fans Aidelle Flue Dilution Fans
Alcon Gas Solenoid Valves Alcon Gas Solenoid Valves
Black Automatic Gas Controls Black Automatic Gas Controls
Black Solenoid Valves Black Solenoid Valves
Bryan Donkin Gas Governors and Ball Valve Bryan Donkin Gas Governors and Ball Valve
Comark Ltd Comark Ltd
Danfoss Climate Controls and Stats Danfoss Climate Controls and Stats
Danfoss Ltd Danfoss Ltd
Danfoss Solenoid Valves Danfoss Solenoid Valves
Danfoss Thermostats and Switches Danfoss Thermostats and Switches
Dwyer Instruments Magnehelic Gauges Dwyer Instruments Magnehelic Gauges
First Trace Condensate Heater Kits First Trace Condensate Heater Kits
First Trace Heating Cable First Trace Heating Cable
Gas Interlock Systems And Accessories Gas Interlock Systems And Accessories
Heat Mat Hk Industrial Gas Controls Heat Mat Hk Industrial Gas Controls
Honeywell Commercial Valves Honeywell Commercial Valves
Honeywell Control Systems Honeywell Control Systems
Jeavons Engineering Gas Governors Jeavons Engineering Gas Governors
Johnson Controls Hydromotors and comm Valves Johnson Controls Hydromotors and comm Valves
Johnson Controls Ltd Johnson Controls Ltd
Johnson Gas Valves Johnson Gas Valves
Johnson Pressure Switches Johnson Pressure Switches
Kane International Combustion Test Equipment Kane International Combustion Test Equipment
Kromschroder Uk Ltd Kromschroder Uk Ltd
Sf Detection Co Detectors Sf Detection Co Detectors
Sperryn Gas Controls Sperryn Gas Controls
Westco Condensate Heater Kits Westco Condensate Heater Kits
Parts and Spares Parts and Spares Supplies
Drainage Above & Below Ground Drainage System Supplies
Air Conditioning & Refrigeration Supplies Air Conditioning & Refrigeration Supplies

  Manufactures
Manufactures Manufactures list

  Collections
collections Design collections
Home > > > > > >

Dwyer Ms-121 Pressure Transmitter


Dwyer Instruments Magnehelic Gauges -  Dwyer Ms-121 Pressure Transmitter

28% 28 percent off rrp

Department: Dwyer Instruments Magnehelic Gauges
  Dwyer Ms-121 Pressure Transmitter
    • Field Upgradeable LCD. No need to order two separate transmitters. Simply stock a transmitter and display and you can satisfy any customer"s requests. Simply remove cover and snap the LCD onto the board.
• Field Selectable Ranges in metric or English. Lowers stock and inventory requirements. You"ll always have the right transmitter for every job.
• Digital Push Button Zero and Span. Reduces calibration time significantly over other transmitters that utilize potentiometers. Lowers maintenance time and costs.
• Adjustable Digital Dampening smooths out unstable pressure fluctuations common in air flow applications.
• Field Selectable Air Velocity Mode for fan and blower applications. Unit provides square root output that accurately tracks fpm or m/s flow rate. No need for a smart programmable indicator or PLC to convert pressure to air flow. Reduces components and installation time lowering overall costs.
  DWYER MS-121 PRESSURE TRANSMITTER The Series MS Magnesense® Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity. This compact package is loaded with features such as: field selectable English or metric ranges, field upgradeable LCD display, adjustable dampening of output signal (with optional display) and the ability to select a square root output for use with Pitot tubes and other similar flow sensors.
Along with these features, the magnetic sensing technology provides exceptional long term performance and enables the Magnesense transmitter to be the solution for a myriad of pressure and flow applications.
Manufacture: Dwyer
Notes: Service: Air and non-combustible compatible gases.
Wetted Materials: Consult factory.
Accuracy: MS-X21: 0.5" w.c. & 0.25" w.c.: ±1%; 0.1" w.c.: ±2%; 100 Pa & 50 Pa: ±1%; 25 Pa: ±2%. MS-X11: 5" w.c. & 2" w.c.: ±1%; 1" w.c.: ±2%; 1250 Pa & 500 Pa: ±1%; 250 Pa: ±2% (@ standard conditions).
Stability: ±1% F.S./year.
Temperature Limits: 0 to 150degF (-18 to 66degC).
Pressure Limits: 1 psi maximum, operation; 10 psi, burst.
Power Requirements: 10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire).
Output Signals: 4 to 20 mA (2-wire); 0 to 5 V, 0 to 10 V (3-wire).
Response Time: Field adjustable 0.5 to 15 sec. time constant. Provides a 95% response time of 1.5 to 45 seconds.
Zero & Span Adjustments: Digital push button.
Loop Resistance: Current Output: 0-1250 max. Voltage Output: min. load resistance 1 k.
Current Consumption: 40 mA max.
Display (optional): 4 digit LCD.
Electrical Connections: 4-20 mA, 2-wire: European Style Terminal Block for 16 to 26 AWG. 0-10 V, 3-wire: European Style Terminal Block 16 to 22 AWG.
Electrical Entry: 1/2" NPS Thread. Accessory: Cable Gland for 5 to 10 mm diameter cable.
Process Connection: 3/16" (5 mm) ID tubing. Maximum OD 9 mm.
Enclosure Rating: NEMA 4X (IP66).
Mounting Orientation: Diaphragm in vertical position.
Weight: 8.0 oz (230 g).
Agency Approvals: CE.
Dwyer
Code#:
MS-121
MyTub Code#: 307754
PDF File: Download pdf brochure 0.27mb
 
rrp£164.64
save£46.30
inc vat(£142.01)

price£118.34

Free UK delivery
email for overseas delivery charges

Stock Check Dwyer Ms-121 Pressure Transmitter check stock level here..
   
 

Related Dwyer Instruments Magnehelic Gauges Products

Dwyer A101 3/4 Oz Bottle Red Gauge Fluid
Related item Dwyer A101 3/4 Oz Bottle Red Gauge Fluid
rrp£25.33
our price£18.20
Dwyer 2300 60 Pa Magnehelic 30-0-30 Pa
Related item Dwyer 2300 60 Pa Magnehelic 30-0-30 Pa
rrp£212.24
our price£152.55
Dwyer M480 Vane Type Vaneometer 0-2m/sec
Related item Dwyer M480 Vane Type Vaneometer 0-2m/sec
rrp£111.81
our price£80.36
Dwyer 460 Air Velocity Meter/press Kit
Related item Dwyer 460 Air Velocity Meter/press Kit
rrp£155.57
our price£111.81
Dwyer 2300 120 Pa Magnehelic 60-0-60 Pa
Related item Dwyer 2300 120 Pa Magnehelic 60-0-60 Pa
rrp£143.02
our price£102.29
Dwyer A331 1/8 Inch Nptm Filter Vent Plug
Related item Dwyer A331 1/8 Inch Nptm Filter Vent Plug
rrp£22.20
our price£15.46
Dwyer M460 Air Velocity Meter/press Kit
Related item Dwyer M460 Air Velocity Meter/press Kit
rrp£97.93
our price£69.10
Dwyer 471 2 Digital Anemometer 0-1500fpm
Related item Dwyer 471 2 Digital Anemometer 0-1500fpm
rrp£828.98
our price£595.83

Dwyer Ms-121 Pressure Transmitter Delivered to your door

Shopping cart
Your Shopping Cart is Empty

Contract Pricing and Quantity Discounts available

  Recently viewed  
Dwyer Ms-121 Pressure Transmitter dwyer ms-121 pressure transmitter
£118.34

Feedback
Required replacement aerators for Magiglo open basket gas fire. This company had them in stock at a reasonable price in comparison to other firms. Ordered and was impressed by the customer care with continually update e mails on progress of the order. Delivery was personally carried out by the company and not by courier or post office which meant that the delicate fragile aerators had not been thrown about in transit. Good to see that in this day and age that a company still had Customer care at heart.
...Michael Fellows
I was really concerned when your email gave the delivery date of by 31111. As the part was needed immediately I rang your customer services department on 211011 and this was looked into. I was pleasantly surprised to be told that the part was on its way and would be with methat day which it was. Now fitted and working perfectly. Was pleased with service but would be better if the email gave the correct delivery date to avoid my panic. Thanks.
...Mrs Claire Harrison
I used this company for the 1st time this week. The website was easy to use with accurate information of the required product . The service provided was excellent, prompt delivery and well packaged. I tried 4 local outlets without success,lucky to find MyTub.
...Isabel - Jones
A perfect item with fast efficient delivery.communication and service excellent.thank you.
...MR PAUL KIME
1st class service delivered on time and product good quality.I will definitely be shopping be shopping here again.
...alistair wilson
Got the product I wanted at the best price I could find. Slight mix up on delivery date and pedestal came later but sorted out OK and very good customer service. Would give 4 out of 5 given mix up but 5 out of 5 if it were not for that. Would definitly reccommend and go back if I need anything in future.
...Mr P Mooney
VERY QUICK DELIVERY. VERY PLEASED WITH PRODUCT.
...mrs julie bosley
Tanks for your help. I have been trying to track down the correct part for some time.
...Ian Clark
Excellent service throughout. Including availability information, order processing, delivery and then resolving a problem caused by me ordering the wrong item by mistake and then arranging the return and supply of the replacement promptly.
...Philip Ford
slight problem sorted out superfast
...Anthony Vance

Why choose MyTub Limited for dwyer ms-121 pressure transmitter MS-121?

  • Fast deliveries
  • Nationwide UK distribution delivery network
  • Local pickup if required
  • Professional Human Service
  • Pre sales tech advice
  • Second to none after sales service
  • This dwyer ms-121 pressure transmitter MS-121 is a genuine branded product
  • Worldwide export if required
  • Read what the experts, our customers have to say above.

Price Match Guaranteed

MyTub ltd Plumbing Supplies  
      VAT relief for disabled people MyTub is a member of the British Chambers of Commerce  
Major credit cards accepted
Verified by VISA  
MasterCard SecureCode
MyTub Ltd
61 Victoria Terrace
Whitley Bay
Tyne & Wear
NE26 2QN
Company No. 06352542
VAT number: 917634607
Telephone 0844 5561818 calls are charged at 7p per minute PLUS your telephone network will charge you which can be significant.
Copyright 2007 - 2026 © MyTub Ltd
Dwyer Heating
Dwyer Ms-121 Pressure Transmitter