Brand

Dwyer Instruments

Dwyer Instruments covers the practical middle of process and building instrumentation: flowmeters, analog pressure gauges, dial thermometers, pressure and flow switches, controllers, air flow measurement and differential pressure devices.

Dwyer is the line most often specified for HVAC balancing, filter monitoring, duct pressure and general plant indication, where robustness and a sensible price matter more than laboratory accuracy. Selection usually comes down to three things: the range, chosen so normal operation sits mid-scale, the wetted materials against your medium, and whether you need local indication only or a transmitted signal. Tell us the medium, the line size and the output your control system expects.

Dwyer Instruments BTO540121 Bimetal Thermometer with Transmitter Output, 50-400°F

The Dwyer Instruments BTO540121 Series BTO Bimetal Thermometer with Transmitter Output combines temperature measurement and signal transmission in one device, reducing installation costs and saving space. Ideal for power generating boilers, skid mounted compressors, and thermal oxidation systems, it features a 4-inch stem and a 50-400°F range.

Dwyer Instruments DS-400-16 Averaging Flow Sensor, 16" Probe

The Dwyer DS-400-16 is a stainless steel averaging flow sensor for air and water flow measurement in schedule 40 pipe. With a 16-inch probe, it features multiple sensing points for accurate averaging and includes quarter-turn ball valves for easy zeroing. Ideal for HVAC and industrial applications.

Dwyer Instruments 43000-40CM Analog Pressure Gauge with 4-20 mA Output

The Dwyer Instruments 43000-5CM is a versatile Capsu-Photohelic switch/gauge combining a precise analog pressure gauge with adjustable high/low limit switches. With a 0-5000 psi range, 1/4 NPT connection, and rugged stainless steel construction, it delivers reliable performance in demanding industrial applications.

Dwyer Instruments DL6100 Environmental Datalogger, 0-100 psig

Dwyer Instruments DL6100 environmental datalogger for pressure, temperature, and relative humidity, with a 0-100 psig (700 kPa) pressure range and IP65-rated enclosure for HVAC and industrial monitoring.

Dwyer Instruments TFM-LP08 Thermal Flow Meter for Air and Gas
The Dwyer Instruments TFM-LP08 is a compact thermal flow meter for accurate air and gas flow measurement. Its laminar flow element eliminates flow conditioning, ideal for tight spaces. Wide range, low pressure drop, fast response.
Dwyer Instruments MC1004 Pressure Calibrator Module with 4-20 mA Output
The Dwyer Instruments MC1004 is a precision pressure calibrator module designed for industrial automation and process control. It features 4-20 mA analog output and NIST calibration certification, ensuring reliable and accurate pressure measurement in demanding applications.
Dwyer Instruments DLI-P Wall-Mountable Data Logger with DL700 Software
The Dwyer Instruments DLI-P is a wall-mountable data logger that stores at least 87,000 readings per channel. It features easy-to-use DL700 software for data analysis and graphing, and can be started/stopped from a PC or delayed to start up to six months in advance.
Dwyer Instruments UFC-122 Ultrasonic Flowmeter Set, 0.5-4.5 inch Pipe
The Dwyer Instruments UFC-122 is a permanent ultrasonic flowmeter set that measures flow non-invasively using transit-time technology. It features data logging, USB, 4-20 mA, and pulse outputs, and is rated IP65 for industrial environments. Ideal for homogeneous liquids in pipes from 0.5 to 4.5 inches.
Dwyer Instruments GFM-2102 Gas Flow Meter, 0-200 SCFM, 4-20 mA Output
The Dwyer Instruments GFM-2102 is a thermal dispersion gas mass flow meter with a range of 0-200 SCFM and 4-20 mA output. It features a digital display, Modbus RTU communication, and NIST traceable calibration for accurate and reliable flow measurement in demanding industrial applications.
Dwyer Instruments DR4144 Flowmeter, Series DR4 Glass, High Capacity
The Dwyer Instruments DR4146 is a high-capacity glass flowmeter with a direct reading scale for air or water. Its fused ceramic scale, integral float guides, and magnifying lens ensure accurate readings in demanding industrial applications.
Dwyer Instruments PE-P-3 Orifice Plate Flowmeter, 1/2-24 in
The Dwyer Instruments PE-P-3 is a precision orifice plate flowmeter designed for accurate differential pressure measurement in industrial applications. Its one-piece PVC construction, built-in metering taps, and corrosion-resistant design ensure reliable performance and long-term durability.
Dwyer Instruments 43000B-20CM Analog Pressure Gauge
The Dwyer Instruments 43000B-300CM is a reliable analog pressure gauge with a brass case, designed for 0-300 cmH2O ranges. It features a 4-20 mA output and 1/4 NPT connection, making it ideal for industrial pressure monitoring. This stainless steel transmitter ensures accurate measurements in demanding environments.
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