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Portable Digital Ultrasonic Flow Meter Kit


Item# FDT-25

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $1,475.00
5-9 $1,401.25
10-24 $1,371.75
25-49 $1,312.75
50-99 $1,283.25
100+ $1,253.75

In stock

Lead Time ( If not in Stock): 5 weeks

Portable Digital Ultrasonic Flow Meter Kit FDT-25 FDT-25
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  • High Accuracy Ultrasonic Flow Meter, better than 1%.
  • Wide Measurement Range from DN15~DN6000mm
  • Rechargeable Power Supply: Built-in high-capacity NiMH rechargeable batteries will last more than 10 hours (Fully charged).
  • Non invasion measurement, can achieve measurement with clamp on sensors
  • Data Storage: 32K BIT built-in data storage can store two thousand rows of data
  • LCD display can display the instant flow, total flow, flow velocity, and working condition
  • Reduces installation time, improves installation accuracy. Easy installation, no need cut the pipe, no pressure loss
  • Easy to install and no need to cut off the flow, no pressure loss
  • Different transducer from DN15~DN6000
5 Year Warranty

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Velocity Range
Pipe Diameter Range
Media Type
Form Factor
Max Process Temperature
Supply Power

Product Specs


The FDT-25 handheld ultrasonic flowmeter is designed to work with clamp-on transducers to enable the flow of a liquid within a closed pipe to be measured accurately without needing to insert any mechanical parts through the pipe wall or protrude into the flow system.

Using ultrasonic transit time techniques, the FDT-25 is controlled by a micro-processor system which contains a wide range of data that enables it to be used with pipes with an outside diameter ranging from 15mm up to 6000mm (depending on model) and constructed of almost any material. The instrument will also operate over a wide range of fluid temperatures.

FDT-25 comes complete with:
1 ea. Handheld Ultrasonic Flow Meter
2 ea. Standard Clamp on Transducers for Pipe Sizes 3/4" to 4"
2 ea. Transducer Chains
2 ea. Transducer Clamps
1 ea. 3M Ruler
1 ea. Acoustic gel for Standard Transducers
1 ea. Universal Power Adapter/Charger
1 ea. RS232 Computer Cable
Transducers for larger pipe sizes and extended temperature ranges are available in the Accessories Section for an additional charge.

Accuracy: ±1% of reading at rates >(0.2m/s) 0.6 ft/s
Repeatability: 0.2%
Linearity: 0.5%
Response Time: 0 to 999 seconds (user configured)
Velocity: (±32 m/s)
Media Temperature Range:
Standard Transducers: 0 to 90°C (32 to 194°F)
With High Temp Transducers: 0 to 160°C (32 to 320°F)
Operating Temperature: Meter, -20 to 60C (- 8 to 140F)
Operating Humidity: Meter, 85% RH
Pipe Size: DN 15 to 100 mm (0.75 to 4") standard [up to DN 6000 mm (236") with optional transducers]
Rate Units (User Configured): Meter, feet, cubic meter, cubic feet, USA gallon, liter, oil barrel, USA liquid barrel, imperial liquid barrel, million USA gallons
Totalizer: 7-digit totals for positive, negative and net flow
Liquid Types: Most liquids including clean water, sea water, waste water, chemical liquids, oil, crude oil, alcohol, beer, and more
Pipe Material: All metals, most plastics and fiberglass (Liner allowed)
Security: Setup values modification lockout. Access code needs unlocking.
Display: 4 x 16 English letters, 4 x 8 Chinese characters
Communications: RS232C (baud rate from 75 to 115,200 bps)
Transducer Cable Length: 5 m
Power: 3 "AAA" NiMH built-in batteries (included) with 100 to 240 VAC charger, fully charged lasts over 10 hrs.
Data Logger: Built-in, stores over 2000 lines of data
Totalizer/Calibration: 7-digit totals for net, positive and negative flow respectively press-to-go for calibration
Housing Material: ABS plastic with aluminum alloy protective carrying case
Case: (IP65)
Weight: 514 g (1.2lb)

NOTE: Additional Standard and High Temperature Transducer Sets are available. See Accessories.

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Does this meter work with Deionized Water?

Asked by: Anonymous
Thanks you for your inquiry. There is no issue with using this meter with deionized water.
Answered by: AS Engineer
Date published: 2020-01-22


Asked by: BIGJOHN
Thank you for your inquiry. Unfortunately, no we do not have a bracket like this.
Answered by: AS Engineer
Date published: 2019-12-13

Which transducers are included with this product, if any? Do you need to buy two transducers from the accessories page for the product to function or do they come in sets of two?

Asked by: WaterWizard
The standard transducer is included with the portable flow meter which is for pipe diameters from 0.75 to 4 inch and if measuring flow rate in larger pipes then, a second set needs to be purchased.
Answered by: JC ENGR
Date published: 2019-12-05
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Standard Clamp on Transducer - Small (0 to 90C) Pipe Size DN15~DN100 (3/4" to 4")
2 In Stock
Standard Clamp on Transducer - Medium (0 to 90C) Pipe Size DN50~DN700 (2" to 28")
6 In Stock
Standard Clamp on Transducer - Large (0 to 90C) Pipe Size DN300~DN6000 (12" to 240")
6 In Stock
Hi Temp Clamp on Transducer - Small (0 to 160C) Pipe Size DN15~DN100 (3/4" to 4")
7 In Stock
Hi Temp Clamp on Transducer - Medium (0 to 160C) Pipe Size DN50~DN700 (2" to 28")
12 In Stock
Hi Temp Clamp on Transducer - Large (0 to 160C) Pipe Size DN300~DN6000 (12" to 240")
5 In Stock
Acoustic gel for Standard Transducers
10 In Stock
Acoustic gel for High Temperature Transducers
11 In Stock
Replacement Transducer Cable (Red & Blue) 5Mx2
3 In Stock

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