Pressure Instrumentation

We've been in the pressure gauge business for more than 30 years, so we've learned a trick or two! Special dials, ranges, case materials... No Problem! Check out our selection of United Electric pressure and temperature switches: In stock, or available within 5 working days. Why wait?

Chemical seal assembly on a Honeywell Smartline pressure transmitterNeed a chemical seal with your pressure gauge or transmitter?

Lesman can build seal assemblies with in-stock transmitters and ship the same day.

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Absolute Pressure Transmitters
Honeywell ST800 Modular Smart Absolute Pressure Transmitters
Honeywell ST2000 Low-Cost Absolute Pressure Transmitters
Honeywell Absolute Pressure Smart Transmitters
Honeywell SMV3000 Smart Multivariable Transmitter
Honeywell XYR5000 WG/A510 Wireless Pressure Transmitter
Honeywell XYR6000 STDW Wireless Differential Pressure Transmitter
Siemens SITRANS P300 All Stainless Steel Sanitary Pressure Transmitter
WIKA UPT-20 and UPT-21 HART® Universal Transmitter with Digital Display
Differential Pressure Gauges
Mid-West Differential Pressure Gauges
Mid-West Instrument Backflow Prevention Test Kits
Dwyer Magnehelic/Photohelic Ultra Low Differential Pressure Gauges
Differential Pressure Switches
United Electric 21 Series NEMA 4X Differential Pressure Switches
United Electric 24 Series Delta-Pro General Service Differential Pressure Switches
United Electric 100 Series NEMA 4X Differential Pressure Switches
United Electric 120 Series Explosion-Proof Differential Pressure Switches
United Electric 400 Series Multiswitch NEMA 4X Differential Pressure Switches
United Electric Differential Pressure Switches for Ultra-Low Pressures
United Electric Spectra 12 Vibration-Resistant Differential Pressure Switches for Div 1 Zone 1 Environments
Differential Pressure Transmitters
Honeywell ST800 Modular Smart Differential Pressure Transmitters
Honeywell Differential Pressure Smart Transmitters
Honeywell Draft Range Differential Pressure Smart Transmitters
Siemens SITRANS P, DS-III Pressure Transmitters

Sale on Honeywell DP Transmitters! Honeywell STD924 just $550 while supplies last!

Get yours from Lesman stock!

Digital Pressure Gauges
Cecomp High Accuracy Digital Gauges for Liquids and Gases
PSI-Tronix High Accuracy Digital Gauges
Pressure Gauges (Including Vacuum/Compound) Shop Now!
Ametek US Gauge Ammonia Refrigerant Gauges
Ametek US Gauge Boiler Service (Pressure/Temperature) Gauges 
Ametek US Gauge Diaphragm Gauges
Ametek US Gauge General Service Gauges
Ametek US Gauge Liquid-Filled Gauges
Ametek US Gauge Low Pressure Gauges
Ametek US Gauge Mechanical Contractor's Gauge
Ametek US Gauge Panel Mount Gauges
Ametek US Gauge Solid Front Process Gauges
Ametek US Gauge Sprinkler/Welding Service Gauges
Ametek US Gauge Test Gauges
WIKA 111.10 Bottom Stem Mount General Service Pressure Gauge
WIKA 111.12 Center Back Mount General Service Pressure Gauge
WIKA 111.10SP Sprinkler System Gauge
WIKA 113.13 Glycerine-Filled General Service Pressure Gauge
WIKA 131.11 Corrosion-Resistant General Service Gauge
WIKA 213.53 Stainless Steel General Industrial Pressure Gauge
WIKA 213.40 Glycerine-Filled General Industrial Gauge
WIKA 213.53 Glycerine-Filled General Industrial Pressure Gauge
WIKA 232.34 XSEL Solid Front Process Gauge
WIKA 232.34DD Direct Drive Process Gauge with External Zero Adjustment
WIKA 232.53 General Industrial Gauge
WIKA 232.54 Stainless Steel General Industrial Pressure Gauge
WIKA 233.34 Liquid-Filled Solid Front Process Gauge
WIKA 233.53 Glycerine-Filled Stainless Steel General Industrial Pressure Gauge
WIKA 233.54 Glycerine-Filled General Industrial Gauge
WIKA 312.20 Precision Test Gauge
WIKA 332.34DD Direct Drive Solid Front Precision Test Gauge
WIKA 611.10 Steel Case Capsule Low Pressure Gauge
WIKA M93X.D1 All-Welded Solid Front Process Gauge and Seal System
WIKA M932.3A/M933.3A Welded Connection 4" Dial Sanitary Pressure Gauge
Pressure/Vacuum Switches
United Electric J6 Series NEMA 4X Pressure Switches
United Electric 40 Series General Service Pressure Switches
United Electric 54 Series General Service Pressure Switches
United Electric 100 Series NEMA 4X Pressure Switches
United Electric 117 Series Hazardous Location (Div. 2) Pressure Switches
United Electric 120 Series Explosion-Proof Pressure Switches
United Electric 400 Series Multiswitch NEMA 4X Pressure Switches
United Electric Spectra 10 Compact Cylindrical Pressure Switches
United Electric Spectra 12 Vibration-Resistant Compact Pressure Switches
United Electric Pressure Switches with Integral Chemical Seals
United Electric 3A-Approved Pressure Switches for Clean Processes
United Electric Ultra Low Pressure Switches for Vacuum Conditions and Harsh Environments

Sale on Honeywell Transmitters! Honeywell STG97L just $475 while supplies last!

Get yours from Lesman stock!

Pressure Transmitters
Honeywell ST800 Modular Smart Gauge Pressure Transmitters
Honeywell ST2000 Low-Cost Gauge Pressure Transmitters
Honeywell Flush Mount Smart Pressure Transmitters
Honeywell Gauge Pressure Smart Transmitters
Honeywell High Temperature Gauge Pressure Smart Transmitters
Honeywell Remote Seal Smart Transmitters
Honeywell SMV300 Smart Multivariable Transmitter
Honeywell XYR5000 WG/A510 Wireless Pressure Transmitter
Honeywell XYR6000 STAW Wireless Absolute Pressure Transmitter
Honeywell XYR6000 STGW Wireless Gauge Pressure Transmitter
Siemens SITRANS P, DS-III Pressure Transmitters
Siemens SITRANS P300 All Stainless Steel Sanitary Pressure Transmitter
WIKA Tronic A-10 OEM General Purpose Pressure Transducers (replaces ECO-1)
WIKA Tronic C-10 OEM All-Stainless Pressure Transducers
WIKA Tronic E-10 and E-11 Pressure Transducers for Class I, Div 1 Hazardous Areas
WIKA Tronic F-20 and F-21 General Purpose Pressure Transducers with NEMA 4X Integral Junction Boxes
WIKA Tronic IS-20, IS-21, and IS-20-F Intrinsically Safe Pressure Transducers
WIKA Tronic LH-10 Submersible Pressure Transducers for Liquid Level Monitoring
WIKA Tronic N-10 and N-11 Pressure Transducers for Class I, Div 2 Hazardous Areas
WIKA Tronic PSD-30 General Purpose Pressure Transducers with Digital Displays
WIKA Tronic S-10 and S-11 Standard Industrial Grade Pressure Transducers
WIKA Tronic S-20 High Performance Industrial Grade Pressure Transducers
WIKA Tronic S-10-3A Sanitary Service Pressure Transducers
WIKA Tronic UT-10 and UT-11 UniTrans Universal Pressure Transducers with Digital Displays
WIKA UPT-20 and UPT-21 Universal Process Transmitter with Digital Display and HART®
Sanitary Pressure Gauges Shop Now!
Anderson 3A Sanitary Gauges
Chicago Stainless Equipment Sanitary Gauges for Food
Chicago Stainless Equipment Sanitary Pharmaceutical Gauges
WIKA M932.3A/M933.3A Welded Connection 4" Dial Sanitary Pressure Gauge
Solid State Pressure Switches
United Electric One Series for Pressure and Differential Pressure