Dwyer Instruments Inc.
Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development,
- 219/879-8000
- 219/872-9057
- lit@dwyer-inst.com
- P.O. Box 373, 102 Indiana Hwy. 212
Michigan City, IN 46361
United States of America
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product
Stainless Steel Low Pressure Gage
SGX
The Series SGX Gages have dual English/metric scales with ±1.6% full scale accuracy. The Series SGX gages are designed with 304 SS housings and brass wetted parts. Units can withstand ambient temperatures up to 149°F (65°C) and process temperatures up to 212°F (100°C).
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Digital Sound Meter
SM-100
Model SM-100 Digital Sound Meter is ideal for measuring noise levels from 30 to 130 dB with accuracy of ±1.5 dB. Model SM-100 has a frequency of 31.5 Hz to 8 kHz, three different dB ranges, and a 1/2" condenser microphone. The SM-100 has two frequency weightings: the "A" weighting ranges from 30 to 130 dB, while the °C" weighting ranges from 35 to 130 dB.
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product
Differential Pressure Transmitter
668
Our low cost Series 668 Differential Pressure Transmitter is capable of measuring low pressures with a ±1% accuracy - ideally suited for proper building pressurization and air flow control. Transmitters can withstand up to 10 psig overpressure with no damage to the unit. Variable capacitance sensor design provides excellent sensitivity and long-term stability.
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product
Flex-Tube Well-Type Manometer
1235
Dwyer Flex-Tube Well Type Manometers are designed to meet the need for a direct reading single column instrument providing highly accurate pressure readings; positive, negative or differential. Unlike other makes, Dwyer manometers have no hidden wells or packing glands
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product
Temperature Switch
DA-7035N
Series DA-7035N Temperature Switches include the same time-proven switching mechanism used in our Series DA Pressure Switches. Bourdon tube assures high sensitivity and long life.
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product
Current Transformer
LTTJ
Love Controls LTTJ Series Current Transformers allow easy monitoring of the current flowing to your load. This easy to use device provides a 0 to 10 VDC signal into both low and high impedance circuits, and is easily scalable to your needs
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product
Capsuhelic Differential Pressure Gage
4000
The Capsuhelic gage is designed to give fast, accurate indication of differential pressures. The gage may be used as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks and many other applications involving pressure, vacuum or differential pressure
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product
Dual Stage Temperature Switch
TSS2
Regulate temperatures for heating or cooling control with the Series TSS2 Dual Stage Temperature Switch. The Series TSS2 is designed to accept two inputs with independent relays output for dual stage temperature control.
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product
Dust Collector Timer Controller
DCT1000DC
Simplify your on-demand cleaning requirements with the Series DCT1000DC Dust Collector Timer Controller. Relying on one timer board for on demand and continuous cleaning applications, the DCT1000DC eliminates external devices such as pressure switches, relays and timers.
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product
Photohelic Pressure Switch Gage
A3000
Photohelic Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic switch/gage measures and controls positive, negative or differential pressures of air and compatible gases
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product
SSR Monitor
LTT
Love Controls LTT Series SSR Monitors allow easy monitoring of the operation of your SSR switches. This handy device compares the input status with the output status. An alarm operates a relay contact to tell you if the load circuit has opened or if the SSR has shorted.
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product
Solid Plastic Portable Gage
100
Dwyer solid plastic portable manometers are precision instruments in inclined and vertical (well-type) styles for the measurement of static pressure, vacuum or differential pressure. To assure the accuracy required in instruments of this type, all machining of bores and wells is to the highest standards of precision backed by Dwyer's years of experience in the fabrication of acrylic instruments.
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product
Conductivity Tester
EC
Monitor conductivity levels quickly and easily with Series EC Conductivity Testers. These pocket-sized testers are ideal for conductivity measurement in the lab, industrial plant or out in the field. Series EC measures conductivity from 0 to 1990 microhms (S) or 0 to 19.90 milliohms (mS).
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product
OEM Gas Pressure Switch
1996
Reliable and convenient, the 1996-5 and 1996-20 Gas Pressure Switches serve as a compact, low cost switch for gas fired furnaces and equipment. Pressure ranges for both models are ideal for high or low gas pressure interlock. Visible set point and on-off indicators add convenience in servicing
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Diaphragm Operated Pressure Switch
1000E
Extremely rugged construction provides excellent reliability in chemical, petroleum and industrial plants. Bellville spring movement permits mounting of control in any position and helps prevent contact chatter. new design also provides high overpressure protection. Available with standard weatherproof housing to meet NEMA-1 through 4X and NEMA-13, JIC.















