When you need to measure liquid flow in a pipe without changing the pipe itself, ultrasonic flow meters are a common tool for pressure flow process measurement. The harder question is whether you want a portable meter you carry to the job or a fixed meter that stays mounted on one pipe. The four meters here cover both approaches, with prices from $150 to $300.
Quick Take
If you move between measurement points, the Portable Ultrasonic Liquid Flowmeter TDS-100H is the one to carry. If the meter will stay on a single pipe, the Ultrasonic Flow Meter TUF-2000B +TM-1 + TS-2 keeps the sensor and electronics in one place. If you want a fixed display, the Wall Mounted Digital Ultrasonic Flowmeter Water Flow Meter & TM-1 TS-2 TUF-2000B is built for that. If you need analog and pulse outputs, the Ultrasonic Flow Meter TUF-2000M w/ Ultrasonic Transducer TS-2 has you covered.
Listed Price Comparison
| Product | Listed Price | Price Bar | Key Traits |
|---|---|---|---|
| Portable Ultrasonic Liquid Flowmeter TDS-100H DN50-700 | USD 300.00 | Portable, RS-232C | |
| Ultrasonic Flow Meter TUF-2000B +TM-1 + TS-2 Fixed Clamp on Flowmeter | USD 210.70 | Fixed clamp-on, ≤1% accuracy | |
| Wall Mounted Digital Ultrasonic Flowmeter Water Flow Meter & TM-1 TS-2 TUF-2000B | USD 240.01 | Two-transducer bundle | |
| Ultrasonic Flow Meter TUF-2000M w/ Ultrasonic Transducer TS-2 | USD 150.00 | 4-20mA, OCT pulse, relay outputs |
Decision Matrix
- Portability: The TDS-100H is the one to take between sites, and its built-in data logger stores up to 10,000 lines.
- Permanent mount: The TUF-2000B + TM-1 + TS-2 supports RS485 with MODBUS, so it can report to a control system.
- Display placement: The wall-mounted TUF-2000B includes both TS-2 and TM-1 transducers and shows flow/heat data on an LCD when the matching sensor is connected.
- Signal outputs: The TUF-2000M with TS-2 transducer lists 4-20mA, OCT pulse, and relay outputs for external equipment.
Product Notes
Portable Ultrasonic Liquid Flowmeter TDS-100H
The TDS-100H uses non-contact ultrasonic measurement, so the sensor does not need to be inserted into the pipeline. It has a 24k-byte data logger that can store 10,000 lines of readings, which matters if you collect data at multiple sites. The RS-232C interface and 4x16 English-character display are part of the package. Pick the TDS-100H when your work is mobile and you want a single meter to travel with you. The limitation is that this is a carry-around instrument, so it is not designed for permanent wall or pipe mounting.
Ultrasonic Flow Meter TUF-2000B +TM-1 + TS-2 Fixed Clamp on Flowmeter
This is the model to choose when the meter will stay on one pipe. It is a fixed clamp-on flowmeter with an accuracy rating of ≤1%, and it supports RS485 with MODBUS, making it easy to connect to a control system. The unit is made through injection molding with ABS and steel, which points to a durable housing. The main thing to plan for is data storage: the SD card is not included, so you will need to supply one for interval recording.
Wall Mounted Digital Ultrasonic Flowmeter Water Flow Meter & TM-1 TS-2 TUF-2000B
The wall/rail mounting design makes this TUF-2000B package suit a permanent installation where you want the display visible. It comes with the TS-2 transducer and the TM-1 transducer, plus two steel belts, a 32.81 ft flow signal cable, and an English manual. The LCD shows current and accumulated flow or heat when the matching sensor is connected. The bundled TM-1 transducer covers larger pipe sizes, so this is a more complete kit for installations that may need a wider range. The trade-off is that a wall-mounted host is meant to stay in one place rather than travel with you.
Ultrasonic Flow Meter TUF-2000M w/ Ultrasonic Transducer TS-2
The TUF-2000M pairs the meter body with the TS-2 transducer and lists a 4-20mA output, an OCT pulse output, and a relay output, so it fits setups that can receive analog or pulse signals. The TS-2 is the smaller transducer used in the TUF-2000B bundles, which points to a smaller pipe range. Choose it when the bundled transducers of the TUF-2000B kits are more than you need. The trade-off is that this package comes down to the meter and one transducer, so you will need to add another sensor separately if you want the larger pipe coverage that the TM-1 offers.
Final Recommendation by Use Case
Take the Portable Ultrasonic Liquid Flowmeter TDS-100H when your measurement points change and you need to carry the meter with you. Choose the Ultrasonic Flow Meter TUF-2000B +TM-1 + TS-2 when the meter will be installed on a single pipe and you want a permanent sensor setup. Select the Wall Mounted Digital Ultrasonic Flowmeter Water Flow Meter & TM-1 TS-2 TUF-2000B when you want the display in a fixed location and need both transducer ranges. Go with the Ultrasonic Flow Meter TUF-2000M w/ Ultrasonic Transducer TS-2 when you only need basic analog and pulse outputs.
