The Rate-Master® Flowmeter line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use.

1211 Handy Roll-Up Manometer with Laboratory Accuracy The Slack Tube Manometers are as accurate as the finest laboratory "U" gages - yet they are made to roll up compactly for easy carrying and to withstand rough usage. Simply unroll the Slack Tube Manometer and set up to read static pressure, vacuum, or differential pressure. Magnetic clips hold it firmly to any steel surface or hang it on a nail. SEE DETAILS FOR MORE

Dwyer's 1213 Gas Pressure Manometer The "Tube in a Tube" Direct Reading Manometer provides visual indication of pressure with the Series 1213 Gas Pressure Manometer. Designed for use with natural gas, the manometer can also be used to monitor any compatible gases up to 15 inches of water column. Tap water is used as the sensing media and a magnetic clip provides temporary or permanent mounting. Economically priced and made of durable plastic for years of trouble-free service. Includes three feet of vinyl tubing and 1/8" nylon male NPT to barb fitting.

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See Detail for PDF and Specifications for more information. 1620 Single and Dual Pressure Gage is one of Dwyer's "Old Faithful Switch" design is still best where highest precision combined with diaphragm sealed leak proof construction and mounting simplicity are required. Models 1626 and 1627 differential pressure switches are identical in design and construction except that Model 1626 has a single electric switch and Model 1627 has dual electric switches. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Try out Dwyer's highest precision 1630 Large Diaphragm Differential Pressure Switch Visual Set Point Adjustment in 5 Standard Ranges, 0.05" to 12" w.c. Repetitive Accuracy within ±1%Pressure Switches
Provides maximum dependability. a visible set point indicator for added maximum convenience. CAUTION: Use Only with Air or Compatible Gages/Gauges.

1640 Floating Contact Null Switch for High and Low Actuation is a unique electric switch design by Dwyer Instrument, Inc. innovation. The Dwyer® Model 1640 Differential Pressure Switch resembles the Series 1630 switches. The Model 1640, however, is equipped with a single pole, double throw floating contact switch (not snap acting) so it functions as a null switch. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

1800 Low Differential Pressure Switches for General Industrial Service, set Points from 0.07" to 85" w.c., Repetitive Accuracy within 2%, UL and CSA listed, FM approved. Essential for industrial environments, small size and low price with 2% repeatability for enough accuracy for all but the most demanding applications. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

1910 Compact Low Differential Pressure Switches, Dwyer Instruments most popular series combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluid, refrigeration, oven and dryer applications. For air and non-combustible compatible gases, Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering. UL, CE and CSA listed, and FM approved. CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES. MR IS MANUAL RESET SHOWN...for use only in single positive pressure applications.

Indicate Positive, Negative or Differential, accurate within 2% full scale. 81 models models available. Typically used in line pressure under 35psi, with options can reach 80psi. If higher then 80psi see CAPSUHELIC Series 4000 for 500psi and less.

he Magnehelic gage is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluid systems. It also checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment. Note: May be used with Hydrogen. When ordering a Buna-N diaphragm pressures must be less than 35 psi.

3100D-2-FM-1-1-LCD Smart differential pressure transmitter, range 0.6-30" w.c. Same Day

3100D Explosion-proof Differential Pressure Transmitter HART® Communication, Push Button Configuration, Rangeability (100:1) this Unit as shown is LCD
If you are a Rosemount 3051CD user you will trust this unit. It has hart communicator with PC and 100.01 rangeability; plus 5 decimal readings; unlike the common 4 digits decimals. and more.. See Details for more information
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Applications:

Flow measurement

• Level monitoring

• Filter or pump differential pressure

• Critical process monitoring