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Using solid state technology, the Series Photohelic 3000MR/3000MRS Photohelic® Switch/Gages combine the functions of a precise, highly repeatable differential pressure switch with a large easy-to-read analog pressure gage employing the durable, time-proven Magnehelic® gage design. Switch setting is easy to adjust with large external knobs on the gage face. Gage reading is unaffected by switch operation – will indicate accurately even if power is interrupted. Solid state design now results in greatly reduced size and weight. Units can be flush mounted or surface mounted with hardware supplied. 3000MR models employ versatile electromechanical relays with gold over silver contacts – ideal for dry circuits. For applications requiring high cycle rates, choose 3000MRS models with SPST (N.O.) solid state relays. All models provide both low and high limit control and include 18-inch (45 cm) cable assemblies for electrical connections.
Retail price from $637
Available
Dwyer® Durablock® Series 250-AF Inclined Manometer Air Filter Gages are precision machined 1″ thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to ±.0002″ to assure life-long accuracy. A glass spirit level is built into the body and encapsulated to prevent damage or tampering. The scale is mirror polished chrome plated brass to assure parallax free reading by alignment of the meniscus with its reflection. Safety traps are incorporated in the body to prevent loss of fluid due to pressure surges. Red and green signal flags indicate clearly when a filter change is necessary. Gages are suitable for use in ambient temperatures of -20 to 150°F. Connection fittings are positively sealed but easily removed for zeroing or addition of fluid.
Retail price from $631
Available
The Series DPG Digital Pressure Gages have a high ±0.25% or ±0.5% full-scale accuracy. The 4 digit digital display will reduce the potential for errors in readings by eliminating parallax error commonly produced with analog gages. Series DPG is battery powered and has an auto-shut off to conserve battery life. Battery life, on average, will last 2000 hours. A 4 button key pad allows easy access to features without the need to work through complex menus or difficult key combinations. These features include backlight, peak and valley, tare or auto zero and conversion of the pressure units.
Retail price from $295
Available
The DPG7000 series have a durable NEMA 4X case, and min/max readings, zero function, 7 languages, and 12 selectable units. They are battery powered with up to a ±0.05% accuracy
- 0.05, 0.10 and 0.25% FS Accuracy Models
- 12 User-Selectable Units of Measure
- Large 17 mm (0.66′) Display with % of Range Bar Graph
- All Stainless Steel Wetted Parts and Case
Retail price from $1 790
Available
The DPGM409DIFF series have metric fittings and ranges, a current or voltage output signal with a wireless option and are user-configurable with a ±0.08% accuracy.
- Wet/Wet Differential Pressure Measurement
- 5-Point NIST Traceable Calibration
- Easy to Read 25 mm (1′) Backlit LCD Display
- High 0.08% Accuracy
Retail price from $1 685
Available
- Digital pressure gauge
- Accuracy ±0.125% BFSL
- 0…100 mbar to 0…600 bar
- Display rotatable
- Battery operated (2 x ½-AA)
Retail price from $368
Available
The Series 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. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width – less than 1% of full scale. Set points can be interlocked to provide variable deadband – ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25 in (0-6 mm) w.c. up to 30 psi (21 bar).
Retail price from $669
Available
Series Mark II Molded Manometers are of the inclined and inclined-vertical types. The curved inclined-vertical tube of the Model 25 gage provides higher ranges with more easily read increments at low readings. The Model 25 is excellent for general purpose work. The Model 40 inclined gage provides linear calibration and excellent resolution throughout its range. The Model 40 is ideally suited for air velocity and air filter gage applications. Both gage types are capable of pressure measurements above and below atmospheric as well as differential pressure measurements. Included with each Mark II manometer are two tubing connectors for 1/8″ pipe or sheet metal ducts, two mounting screws, 1 ounce bottle of indicating fluid, red and green pointer flags and complete instructions.
Retail price from $58
Available
The Series DPGA is the only economic digital pressure gage with selectable engineering units on the market. With its 1% accuracy and digital push-button zero, the DPGA is the perfect choice for digitally monitoring the pressures of air and compatible gases.
Retail price from $161
Available
The DPG8001 series have a durable NEMA 4X case and protective boot, and min/max readings, zero function, and selectable units with ±0.25% accuracy for general purpose uses.
- 0.25% Full Scale Terminal Point Accuracy
- 5 Digit LCD Display with Large 12.2 mm (0.48′) Digits
- 20 Segment Bar Graph Display
- User-Selectable Engineering Units
Retail price from $637
Available
The PGC series are 2″ and 2.5″ dial gauges with durable construction and a ±3-2-3% accuracy in gauge, vacuum, and compound gauge ranges.
- Economically Priced
- Long Lasting Movement
- Durable Construction
- Stocked Ranges for Fast Delivery
Retail price from $47
Available
- Precision digital pressure gauge
- Accuracy ±0.1% FS or ±0.2% FS
- 0…100 mbar to 0…3,000 bar
- Measurement and indication of the medium temperature
- -10…+70°C ±1°C
- USB interface
- Chargeable Li-Ion battery
Retail price from $790
Available
Our Series LPG4 2.5″ Low Pressure Gage offers top of the line performance and accuracy for pressure and vacuum applications up to and including 160 in w.c. The LPG4 is constructed from a single beryllium-copper diaphragm affixed to a precision-machined brass plate. This innovative design, together with a high-precision, milled-teeth brass movement and nickel-silver pinion and bearing surface, provide the user with a top of the line low pressure instrument.
Retail price from $72
Available
The Series DPGWB/DPGAB Pressure Gages offer 0.5% full scale accuracy in a rugged, easy-to-use unit at prices comparable to mechanical gages. The DPGWB stainless steel wetted material makes it suitable for a wide variety of liquids or gases. The gages feature user-selectable units of measure allowing one gage to be used for a variety of pressure scales. The DPGWB/DPGAB come with a protective rubber boot to protect against short drops and rough handling.
Retail price from $222
Available
The DPG1001 series are AC/DC, loop, or battery powered units with optional 4 to 20 mA output and dual alarms and NIST certification with a ±0.10% accuracy.
- NIST Certification Included
- High Accuracy +/- 0.10% Test Gauge
- 316 Stainless Steel Wetted Parts
- Easy-to-Read 3 1/2 Digit LCD Display
Retail price from $734
Available
The PGF series are 2.5″ dial gauges with a ±3-2-3% accuracy, liquid filled, and leak proof for superior performance in applications with high vibration, pulsation, and shock.
- Easy To Read 2½ inch Dial
- Superior Performance With Vibration, Pulsation, Shock
- Leakproof O-Ring Seal
- Lower and Back Mounts
Retail price from $103
Available
- Internal sensors for force or pressure
- External sensors for torque and pressure
- Programmable filter and average value functions
- Up to 7 external sensors (automatic detection), also mixed (torque, force/weight, pressure)
- Can be calibrated, adjusted and linearized
Retail price from $762
Available
The Series 475 Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 1 in w.c. (0.249 kPa) to 150 psid (10.34 bar). The dual push pads on the front panel control the on/off, auto zero, and pressure unit selection, allowing for simple operation with no set up needed. When used with a Dwyer® Pitot tube, the Series 475 can also be used as an air velocity gage.
NIST CALIBRATION available in Product Configurator.
Retail price from $234
Available
Series LPG3 Low Pressure Gages are designed to be especially sensitive with an elastic element that expands and contracts with very small changes in pressure for ASME Grade A accuracy. This series is meant for the measurement of low pressures of gases and liquids and is ideal for air flow indicators, liquid level indicators and draft gages. Our new low pressure gages are available in 2-1/2″ dial with either a bottom or back connection option.
Retail price from $76
Available
Series EDA Electronic Pressure Control is an extremely versatile compact package that can replace a separate gage, two switches, and a transmitter in a system saving money, installation time, and panel space. The EDA incorporates two SPDT relays that have the on and off points fully adjustable over the range for control or alarm use. Front face has LED indicators for switch status and a large backlight two-line display showing process value and indication units. Programming is easy with simple menu structure, two-line display, and external programming buttons. Weatherproof housing is ideal for a wide variety of applications with panel mount, flush mount, or pipe mount ability. Features include zero set, adjustable dampening, menu lock out, peak and valley indication, removable terminal blocks, adjustable time delay, and scalable transmitter output.
Retail price from $542
Available
The DPG409 series have a current or voltage output signal with a wireless option and are user-configurable. They have ±0.08% accuracy in many pressure types.
- NEW RANGES! Sealed Gage, Compound Gage, Vacuum and, Barometric Ranges
- 5-Point NIST Traceable Calibration Included
- High 0.08% Accuracy on most Ranges
- Selectable 4 to 20 mA, 0 to 5V or 0 to 10V Analog Output
Retail price from $1 210
Available
The PGR series are 4.5″ dial gauges with a ±0.5% accuracy, and a stainless steel, liquid fillable and sealed design with fewer leak paths than competitive models.
- All-Welded Seal to Gauge Design and Seamless Bourdon Tube Provide Fewer Leak Paths than Competitive Models
- Stainless Steel Wetted Parts and Bourdon Tube
- Liquid Fillable Gauge Case with Bladder
- Tamper Resistant Design
Retail price from $476
Available
- Digital pressure gauge
- Accuracy ±0,25% BFSL
- 0…400 mbar to 0…600 bar
- Display rotatable
- Battery operated (2 x ½-AA)
Retail price from $291
Available
he Series 476A Single Pressure Differential Pressure Digital Manometer can be used to measure low pressures from -20 to 20 in w.c. with ±1.5% FS accuracy.
The Series 478A Single Pressure Differential Pressure Digital Manometer can be used to measure positive, negative, or differential pressures with ±1.5% full-scale accuracy. Both units are constructed of an extruded aluminum case for exceptional durability.
Retail price from $179
Available