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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
Ask questions
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- Q: Can I request a specific delivery date for my order?
A: While we strive to deliver orders promptly, specific delivery date requests may not always be possible due to logistics and carrier limitations. However, if you have a specific requirement or need expedited shipping, please contact our customer service, and we will do our best to assist you.
- Q: What should I do if I forgot my password?
A: If you forgot your password, click on the "Forgot Password" link on the login page. Follow the instructions to reset your password.
- Q: Do you offer free shipping?
A: We may offer free shipping on select products or as part of promotional campaigns. You can check the product details or promotions to see if free shipping is available.
Reviews
- R
Richard Rawlings
Jul 14, 2025
Omega Flowmeter FLMH-3801In stock and ready to ship, fast.HelpfulUnhelpful - B
Brian Shaffer
Dec 18, 2024
Omega Flowmeter FLMH-3801My new purchase is on its way and I'm all smiles about it.HelpfulUnhelpful - P
Patrick Liberti Jr
Oct 20, 2024
Omega Flowmeter FLMH-3801I was hoping you'd have it. Thanks.HelpfulUnhelpful - G
Gene D'Angelo
Aug 31, 2024
Omega Flowmeter FLMH-3801Excellent browserHelpfulUnhelpful - 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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