When you need a flow meter for pressure flow process measurement, you face a fundamental choice in technology. The Wall Mounted Ultrasonic Flowmeter TUF-2000B measures flow using external ultrasound transducers that attach to a pipe with steel belts, while the Badger 108-6670 relies on a positive displacement mechanism that must be plumbed directly into the line. Both are sold as new units, but they suit very different installation scenarios and data needs.
The right pick depends on how much accuracy you need, whether you want to log or transmit readings, and how you can physically get a meter onto your pipe. You also need to think about whether you'll be reading the meter manually or want it tied into a control system. The ultrasonic meter comes with a wall-mountable display and a long signal cable, while the Badger is a single-piece meter that must be threaded into the flow line.
Quick verdict: If your priority is digital data and system integration, the Ultrasonic Flowmeter TUF-2000B is the better buy. If you want a simple, direct-reading mechanical meter for a threaded water line, the Badger 108-6670 is a solid alternative.
| Specification | Ultrasonic Flowmeter TUF-2000B | Badger 108-6670 |
|---|---|---|
| Price | $240.01 | $477.99 |
| Flow meter type | Ultrasonic | Positive displacement |
| Accuracy | ≤1% | 5% |
| Connection | External transducers | 3/4" NPT |
Where the Ultrasonic Flowmeter TUF-2000B wins:
- Digital connectivity: RS485 MODBUS output and an LCD display for flow and heat data.
- Heat measurement support: with the corresponding sensor, the display can show heat flow as well as accumulated totals.
- Mounting flexibility: the display host can be mounted on a wall or a rail.
Where the Badger 108-6670 wins:
- Threaded installation: a standard NPT connection that threads directly into a pipeline.
- Mechanical simplicity: positive displacement design with no digital setup or programming.
- Water-temperature fit: rated for water between 32 and 80 degrees Fahrenheit, so it suits many indoor plumbing loops.
Product notes:
Wall Mounted Ultrasonic Flowmeter TUF-2000B
Choose this ultrasonic meter for its digital features and wide coverage. The package includes both TS-2 and TM-1 transducers, so you can work with a range of pipe sizes, plus a 32.81-foot signal cable. The host unit has an LCD display and RS485 MODBUS output, making it ready to feed flow data into a control system. The main limitation is installation: you need to mount the display on a wall or rail, attach the correct transducer with steel belts, and connect the cable. It's more involved than threading a simple mechanical meter into place.
Badger 108-6670 Positive Displacement Flow Meter
The Badger 108-6670 is the pick if you want a straightforward mechanical meter that threads into a 3/4-inch NPT line and reads water flow directly. Its positive displacement design doesn't need any programming or wiring, and it's rated for water from 32 to 80 degrees Fahrenheit, which suits many indoor water loops. The trade-off is precision: 5% accuracy is looser than the ≤1% you'll get from the ultrasonic meter, and it comes at a higher price-$477.99 compared with $240.01. For applications where a simple, direct water count is enough, this meter gives you exactly that without any digital extras.
Final choice by use case: Go with the Ultrasonic Flowmeter TUF-2000B when you need accurate flow data with remote monitoring capabilities and you can handle a more involved installation. Pick the Badger 108-6670 when a simple threaded inline meter with a direct mechanical readout is all your process requires.

