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Repeatability: ±1%
Flow Measuring Range: 0.4 - 560 lpm (0.1 - 150 gpm)
Maximum Operating Pressure:
Aluminum and brass monitors: 3500 psig (240 Bar)
Stainless steel monitors: 6000 psig (410 Bar) up to 116°C (240°F)
Maximum Operating Temperature:
Standard Models: 116°C (240°F)
High Temp (-HT) Models: 204°C (400°F) max
Ultra High Temp (-UHT) Models: 316°C (600°F) max
Pressure Differential: download spec sheet for pressure drop graphs
Standard Calibration Fluids:
Oil monitors: DTE 25 @ 43°C (110°F), 0.873 sg
Water monitors: tap water @ 21°C (70°F), 1.0 sg
Maximum Particle Size: 76 microns
Relay (Optional): 1 or 2 form “C” relays, rated 10 A @ 125 or 250 Vac or 0.25 A @ 250 Vdc
Mechanical Life: >107 cycles
Analog Output (Optional): Supply voltage 12 to 35 Vdc, field selectable for 0 to 5 Vdc (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; Rmax = 50 (Vs-12). Vs = supply voltage DC
Installation Dimensions:
1/4 and 1/2 NPT Sizes: 1-7/8 OD x 6.6" length
3/4 and 1 NPT Sizes: 2-3/8 OD x 7.2" length
1-1/4 and 1-1/2 NPT Sizes: 3-1/2 OD x 10.1" length
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A: Depending on the category and brand of the product, we may offer shopping protection plans or extended warranty services. You can view relevant information on the product details page and choose to purchase based on your needs.
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Reviews
- G
Gene D'Angelo
Dec 05, 2025
Omega Flowmeter FLMH-3801Excellent browserHelpfulUnhelpful - R
Richard Rawlings
Aug 30, 2025
Omega Flowmeter FLMH-3801In stock and ready to ship, fast.HelpfulUnhelpful - P
Patrick Liberti Jr
May 11, 2024
Omega Flowmeter FLMH-3801I was hoping you'd have it. Thanks.HelpfulUnhelpful - B
Brian Shaffer
Nov 21, 2023
Omega Flowmeter FLMH-3801My new purchase is on its way and I'm all smiles about it.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Omega Flowmeter FLMH-3801All was ok! No problems whatsoever.HelpfulUnhelpful
Omega Flowmeter FLMH-3801
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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