When you need flow measurement on a pipe without breaking into the line, the practical decision usually comes down to how much the meter will move. The Portable Ultrasonic Liquid Flowmeter TDS-100H is designed for people who take readings in different places, while the Ultrasonic Flow Meter TUF-2000B is a fixed clamp-on unit for a permanent spot. Both use ultrasonics to measure liquid flow, and both can be used on a pipe without cutting into the line, but the way they fit into your workday is different. Before you choose, think about whether you need one meter that roams or one meter that stays on duty.
Quick verdict
The price spread of about $89 mostly comes down to portability and the on-board display. Pick the portable TDS-100H for jobs that take you from one pipe to another. Pick the fixed TUF-2000B for a dedicated installation that stays on a single line. If you only monitor one critical pipe, the fixed unit is the simpler match; if you troubleshoot all over a facility, the portable unit will follow you.
At a glance
| Feature | Portable TDS-100H | Fixed TUF-2000B |
| Price | USD 300.00 | USD 210.70 |
| Mounting style | Portable carry-around | Fixed clamp-on |
| Logging | 24k byte memory (10,000 lines) | SD card recording (card not included) |
| Communication | RS-232C | RS485 with MODBUS support |
Where each product wins
- Portable TDS-100H wins for multi-point surveys and field checks. It is the tool to carry when the measurement point changes throughout the day.
- Fixed TUF-2000B wins for permanent installations where the meter stays on one line and you want a dedicated setup.
Product notes
Portable Ultrasonic Liquid Flowmeter TDS-100H
This meter lives up to its portable name: it is built for moving between pipes rather than staying attached to one line. The metal-and-plastic body is meant to hold up to regular handling, and the 4x16 English letter display gives you readings right where you are working. Its internal memory logs up to 10,000 lines, which helps when you are collecting measurements across several points. Communication runs through RS-232C, so it is a better match for a direct PC connection than for an industrial control bus. The trade-off is that you are paying for mobility and a display; if the meter is assigned to one pipe forever, the portability advantage goes unused.
Ultrasonic Flow Meter TUF-2000B
The TUF-2000B takes the permanent route. It is a fixed clamp-on meter with an ABS-and-steel body designed to remain on one pipeline and keep taking ultrasonic readings over time. The RS485 interface supports MODBUS, which gives it a practical path into an industrial monitoring setup. Data recording uses an SD card, and the meter stores preset results at regular intervals so you can analyze them later; the card itself is not included. The limitation is in the word fixed: once mounted, this meter is not the one you pack up for a visit to another pipe. That makes it a better fit for a line that needs a dedicated reading than for a roving technician.
Final choice by use case
- Choose the Portable TDS-100H for field troubleshooting and jobs that span multiple pipes.
- Choose the Fixed TUF-2000B for one-pipe permanent service where you want the meter to stay in place.
