Dwyer Instruments, Inc.
Michigan City, IN 46360

Electromechanical Relay has quick-connect terminals.
Series EMR electromechanical relay includes quick-connect terminals for simple connection as well as Class F insulation for maximum coil temperature of 155°C. Compact, panel-mountable unit is impervious to shock and vibration. It is suited for motor control, power supplies, lighting, and compressor loads.
Read More »
Power Supply targets building automation applications.
Equipped with 3 A fuse that protects power supply from over-current conditions, Series BPS converts 24 Vac to regulated DC power source for transmitters with 4-20 mA outputs. Output voltage can be field adjusted from 1.5-27 V using potentiometer. Snap-on bracket can be surface mounted to any flat surface.
Read More »
Gas Pressure Test Kit detects leaks in gas lines.
Series LPTK Gas Pressure Test Kit is suited for testing LP and natural gas lines and controls. It includes gauge with 3% FS accuracy that indicates whether proper pressure is present or if leak exists. Calibration screw is located on back of gauge. Available in 2 different gauge ranges, product also comes with case for durability and safe handling.
Read More »
Data Loggers record pressure and temperature in harsh areas.
Suitable for measurements in harsh and hazardous locations, Series DLP features -¼ in. fitting, which allows loggers to be adapted to almost any pressure fitting. Units have temperature range of -40 to 176°F and pressure ranges of 0-30, 0-100, 0-300, 0-500, 0-1,000, and 0-5,000 psia, depending on model. Operating from 3.6 V lithium battery, loggers can store over 16,000 measurements per...
Read More »
Ultrasonic Level Transmitter suits hazardous applications.
Designed for use with corrosives, slurries, and fluids with solids, Series ULT provides non-contact measurement of liquid levels regardless of ladders, pipes, and other tank intrusions. Large LCD display offers 4 button programming of simple menu structure, and device has failsafe output options and diagnostic capabilities for critical applications. FM approved transmitter meets explosion-proof...
Read More »
Zone Valves control flow of hot and cold water.
Available in 2- and 3-way construction, Series ZV2 and 3ZV2 are used with temperature controllers and thermostats to control temperature in HVAC systems. Units incorporate bidirectional motor, removable actuator, and manual overrides. Offered in -½, -¾, 1, and 1 -¼ in. sizes, valves accept supply voltages of 120, 24, or 220 Vac. Inputs are available floating or modulating with 4-20 mA or 0-10...
Read More »
Digital Temperature Switch targets refrigeration applications.
Series TSX3 Digital Temperature Switch controls compressor, fan, and defrost in refrigeration applications. It includes digital input that can be used to remotely trigger defrost cycle, monitor cooler door status, or act as external alarm. Real-time clock allows for HACCP logging of temperature alarms caused by temperatures out of set limits or loss of power. For programming multiple units, model...
Read More »
Fume Hood Monitor ensures air flow is sufficient for exhaust.
Series 670 Fume Hood Monitor continuously senses air flow through face of fume hood, ensuring safe levels of fresh air are exhausting potentially hazardous fumes. Featuring hot-wire sensor to detect low flows common on fume hoods, it also includes LED safe and alarm status indicators, audible alarm with temporary or permanent horn silence, relay alarm output, and input for night set-back....
Read More »
Pressure Transmitter employs ceramic sensor.
Accurate to ±1% FS, Series 628CR features ceramic sensor housed in NEMA 4X stainless steel body with size and weight for optimal compatibility with OEM systems. Design allows for pressure ranges from -14.7 to +500 psi, and optional electrical connections (cable or DIN connector) help meet application needs. Offering 4-20 mA output, transmitter is available with -¼ in. male NPT/BSPT process...
Read More »
Digital Temperature Switch offers on/off control.
Suited for heating or cooling applications, Series TS3 features field selectable engineering units and temperature probe. Built-in real-time clock is used for HACCP logging of temperature alarms caused by temperatures outside of set limits or loss of power. For refrigeration applications, defrost cycle can be initiated based on time or using front panel keys. PTC temperature range is -58 to...
Read More »