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Known for quality, reliability and accuracy, Dwyer designs and manufactures a full-line of Controllers, Data Loggers, Gages, Manometers, Monitors, Remote Displays, Switches, Transmitters, and Accessories to measure, monitor and control pressure, air velocity, flow, fan pressure, duct, and more.

Air Velocity
Dwyer offers Wind Meters that have the option of Pocket Wind Meters and handheld meters. There are also Wind Speed Indicators and Vaneometers that are designed to simplify the measurement of low air velocities. Air Velocity Transmitters are sold in this category which are ideal for monitoring air flow.
Flow includes Flow Transmitters, Flow Sensors, Flowmeters, Sight Flow Indicators and Water Meters. Mass Flowmeters, Controllers, Flow Indicators and Controllers are ideal for measurement of flow rates. Flow Switches come as paddle, thermal, piezo, and shuttle/piston.
Level includes Bin Vibrators – ideal in high vibration. Pump Controllers monitor pump levels and leaks. Level Indicators are customizable to fit any application. Level Switches come in diaphragm, tuning fork, and more. Level Transmitters are capacitive, float, submersible, or ultrasonic. Water Leak Detectors monitor water levels.
Process Controllers and Din Rail Temperature Controllers monitor and control temperature, defrost, and fan cycles. Dwyer offer selections of Transmitters, Thermostats, Digital Panel Mount, Limit Switches, Mechanical Switches and Thermometers available in dial, spirit filled, or digital. Indicators are available with digital LCD displays.

Process Control
Dwyer sells Alarm Switch Modules, Chart Recorders, Current and Particulate Transformers/Switches, Data Loggers, Fan Speed Controllers, Intrinsically Safe Barriers, Indicating Annunciators, Motion/Safety Switches, Power Supplies and Transformers, Relays, Signal Conditioners/Converters, SSR Monitors, and more.

Data Loggers & Recorders
Data Loggers available are Button, High Temperature, Humidity, LCD, Portable, Pressure, Process, Submersible, Temperature, USB, Wireless, and Water Level Data Loggers; Software for communicating with these Data Loggers. Some data loggers are compact and stainless steel. These Data Loggers monitor various applications.

Test Equipment
Test Equipment has instruments for calibration, measurement, test of Air Velocity and Flow, and monitor Back Flow, Carbon Monoxide, and Combustion. Distance, Electrical Control Signals, Electricity, Gas Detection/Analysis, Ground and Continuity meters are available. HVAC Balancing, Humidity, Light, and many more are available.

Valves
Valves include Ball, Butterfly, Check, Globe, Needle, and Solenoid Valves. Actuators come in pneumatic and electric, Air Filters have different fittings and port sizes, Connectors eliminate need of welding, Electro-Pneumatic Contollers, Current/Pressure Transducers, Positioners, Position Indicators are linear or rotary operation, and Volume Boosters.

Miscellaneous
Power Supplies & Transformers contains fuse protections, power supplies, and Power charges. Accessories include Carrying Cases, Cooling Extensions, Filters, Fittings, Gage Fluids and Guards, Mounting Options, Mufflers, Pressure Snubbers, Psychrometers, Regulators, Siphons, Slide Charts, Static Pressure Sensors, and Tubing.

Air Quality
Air Quality Instruments are used in HVAC systems. Air Filters & Flow Switches & Velocity Transmitters, Carbon Dioxide Transmitters, Carbon Monoxide Transmitters, Flow Sensors, Fume Hood Monitors, Occupancy Sensors, Pitot Tubes, Switches/Transmitters for Temperature/Humidity are available. Products contain LCD displays.
Products rated for use in hazardous locations. Includes Valves, Temperature Transmitters, Pressure Switches which are explosion-proof and compact, Flow products that monitor liquid, gas, and air flows, Level models where some are submersible and applications vary, and a Pressure Transmitter which is microprocessor-based.
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PBLT2-5-60-PU
Call For PricingDWYER SUBMERSIBLE LEVEL TRANSM 5PSI 60ft CABLE
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MARK II 25
Call For PricingDWYER MARK II MODEL 25
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DA-31-3-9
Call For PricingMERCOID PRESSURE SWITCH
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2010D
Call For PricingDWYER PRESSURE GAGE RANGE 0-10”W.C & 0-2.5 KPA
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144-0009
Call For PricingDWYER 3/16″ OD, 1/8-27 NPT BRASS COMPRESSION FITTING
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DA-31-2-9
Call For PricingMERCOID PRESSURE SWITCH
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5J120-1133-040-018-060-06
Call For PricingDWYER THERMOCUPLE J-TYPE, STRIPPED ENDS,
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PBLT2-10-40
Call For PricingDWYER LEVEL TRANS 0-10PSI
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L6EPB-S-S-3-C
Call For PricingDWYER LIQUID LEVEL SWITCH
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A6-751221
Call For PricingDWYER BRASS PRESSURE SWITCH 51-90 PSI
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V4-SS-2-U
Call For PricingDWYER FLOW SWITCH FOR 2IN NPT
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EDAW-N1E1-05T0
Call For PricingDWYER 0-150PSIG
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DPG-200
Call For PricingDWYER DIGITAL PRESSURE GAUGE -14.7PSIG -1034CM W.C.
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DAW-33-153-1
Call For PricingMERCOID PRESSURE SWITCH
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628-10-CB-P1-E5-S1
Call For PricingDWYER PRESSURE TRANSMITTER 1%SCALE 0-100PSIG 4-20mA
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628-08-GH-P1-E1-S1
Call For PricingDWYER PRESSURE TRANS 0-30PSI / 4-20mA OUT
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628-07-CB-P1-E5-S1
Call For PricingDWYER 0-15PSIG 4/20MA TRANSMITTER 1% FULL SCALE
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626-11-GH-P1-E4-S1
Call For PricingDWYER INDUSTRIAL PRESSURE TRANSMITTER 0-150PSI
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616KD-00-V
Call For PricingDWYER DIFFERENTIAL PRESSURE TRANSMITTER 0-1″ WC
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EDAW-N1E1-02T0-HV
Call For PricingMERCOID 20# ELECTRONIC PRESSURE SWITCH 100-240VAC
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DA-31-153-6
Call For PricingMERCOID PRESSURE SWITCH 5-100 PSIG 9-64 SPDT BRASS
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2-5010
$55.00DWYER MINIHELIC 0-10IN WC
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Feb-10
Call For PricingDWYER MINIHELIC 0-10IN WC
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V4SS2U
Call For PricingDWYER FLOW SWITCH
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SGZ-D10422N
Call For PricingDWYER 2.5″ SS 1/4″NPT 60PSI BOTTOM CONNECT
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SGY-D10522N
Call For PricingDWYER 2.5″ SS 1/4″NPT 100PSI BOTTOM CONNECT
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SGX-D8622N
Call For PricingDWYER SS LOW PRESSURE GAUGE 0-100″ W.C.
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SGF-D8722N
Call For PricingDWYER SS LOW PRESSURE GAUGE 0-160 ” W.C.
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P5-2
Call For PricingDWYER FLOW SWITCH
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NVII-1B
Call For PricingDWYER NEEDLE VALVE F-F 1/4IN
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MPCJR
Call For PricingMERCOID MPC JUNIOR PUMP CONTROLLER
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MPC
Call For PricingMERCOID PUMP CONTROLLER
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EDAW-N1E1-05T1
Call For Pricing -
EDAW-N1E1-04T1-HV
Call For PricingMERCOID 100# ELECTRONIC PRESSURE SWITCH 100-240VAC
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EDAW-N1E1-04T1
Call For PricingMERCOID ELECTRONIC PRESSURE SWITCH 0-100 PSI
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EDAW-N1E1-04T0-HV
Call For PricingMERCOID 100# ELECTRONIC PRESSURE SWITCH 100-240VAC
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EDAW-N1E1-04T0
Call For PricingMERCOID 100# ELECTRONIC PRESSURE SWITCH
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EDAW-N1E1-02T1-HV
Call For PricingMERCOID 20# ELECTRONIC PRESSURE SWITCH 100-240VAC
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EDAW-N1E1-02T0
Call For PricingMERCOID 0-20PSI SWITCH ONLY
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DAW-33-153-7
Call For PricingMERCOID PRESSURE SWITCH
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DAW-33-153-6
Call For PricingMERCOID PRESSURE SWITCH
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DA-31-3-5
Call For PricingMERCOID PRESSURE SWITCH
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DA-31-3-3A
Call For PricingMERCOID PRESSURE SWITCH
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DA-31-2-6
Call For PricingMERCOID PRESSURE SWITCH
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DA-31-2-3
Call For PricingMERCOID PRESSURE SWITCH
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DA-31-153-9
Call For PricingMERCOID PRESSURE SWITCH
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CLS2-W11RK2-008
Call For PricingDWYER LEVEL SWITCH
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APW-153-37
Call For PricingMERCOID DIAPHRAGM PRESSURE SWITCH
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A-625
Call For PricingDWYER LIFT LUG/CABLE HANGAR
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A-297
Call For PricingDWYER DESSICANT FILTER
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673-5
Call For PricingDWYER PRESSURE TRANSMITTER 0-25 PSI

Certified Dwyer Distributors Since 1984
Butler & Land
The trusted leader in manufacturing innovative instrumentation solutions for the worldwide HVAC & process automation markets. As a leading manufacturer in the controls and instrumentation industry, Dwyer continues to grow and serve major markets including, but not limited to; Water, Food & Beverage, Oil & Gas, Utility, Chemical Processing and Industrial.
Dwyer uses advances computer modeling software to simulate real world situations, creating more accurate measurement techniques in our products. Innovative product designs have been recognized by industry experts, including ACHR Dealer Design Awards in the Testing and Monitoring category for 2014 and 2015



As a leading manufacturer in the controls and instrumentation industry, Dwyer continues to grow and serve major markets including, but not limited to; Water, Food & Beverage, Oil & Gas, Utility, Chemical Processing and Industrial.
If you don’t see the item you are looking for, or we are currently out of stock, please contact our Sales Department for current price and delivery at 800-527-6870 or sales@butlerandland.com
Learn More About Dwyer Instruments

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Dwyer FAQ
Most frequent questions and answers about Dwyer
Dwyer manufacturing and design center locations are located across the United States, including: Michigan City, Indiana; South Bend, Indiana; Wakarusa, Indiana; Kingsbury, Indiana; Wolcott, Indiana; Fergus Falls, Minnesota; and Kansas City, Missouri.
MICHIGAN CITY – Michigan City-based Dwyer Instruments has been acquired by Arcline Investment Management of San Francisco.
A water meter is measures the quantity (volume) of water that passes through a pipe or other outlet. Typically, meters use a standard unit of measure for volume, such as cubic feet or gallons. Your meter works like a car odometer, recording the cumulative amount of water that has passed through the meter.
Dwyer Instruments has about 700 employees.