Choosing a flow meter for pressure flow process measurement often comes down to whether you want to mount sensors on the outside of a pipe or thread a meter into the line. The TUF-2000B ultrasonic flow meter kit is priced at USD 210.70, while the Blancett B111-120 turbine flow meter is priced at USD 320.00. Both are new or new open-box units, but the right choice depends on your piping setup and how you plan to use the flow signal.
Quick verdict
Go with the TUF-2000B if you want a pipe-surface ultrasonic meter with serial communication and the flexibility to handle reverse flows. Choose the Blancett B111-120 if you need a rugged inline turbine meter with a defined 40-400 GPM range. The fastest decision path is to think about installation first: external sensors versus in-line body.
At a glance
| TUF-2000B | Blancett B111-120 | |
|---|---|---|
| Price | USD 210.70 | USD 320.00 |
| Meter type | Ultrasonic flow meter | Turbine flow meter |
| Installation | Clamp-on sensor set | 2" NPT female |
| Range / sizing | DN20~700m pipe sizing | 40-400 GPM |
| Signal output | RS485, MODBUS | Magnetic pickup |
Where each product wins
Where the TUF-2000B wins: The external TM-1 and TS-2 transducers attach to the pipe surface, so you do not need to alter the line to install the meter. It also measures flow in both directions, which is useful when flow can reverse during startup or shutdown.
Where the Blancett B111-120 wins: The 316L stainless steel body is suited for corrosive and abrasive process fluids, and the meter ships with its factory calibration label so you have a defined reference for interpreting the pickup signal. This is the choice for a permanent 2-inch inline installation.
Product notes
TUF-2000B ultrasonic clamp-on flow meter
The TUF-2000B is a fixed pipe-surface ultrasonic flow meter that ships with TM-1 and TS-2 transducers. It is rated at ±1% accuracy, and it can work with liquids that transmit ultrasound, including water, seawater, sewage, oil, and alcohol. The meter records preset results to an SD card, but the card is not included, so you need to supply your own if data logging is part of your process. The design is described as creative, durable, and stable, and the condition is new. The main limitation is the extra SD card requirement; beyond that, the meter stays out of the flow stream, which can be an advantage in lines that should remain sealed.
Blancett B111-120 Model 1100 turbine flow meter
The Blancett B111-120 is a Model 1100 turbine flow meter with a female NPT connection and a 316L stainless steel body. The condition is new open box, so the meter is unused but the original packaging may show handling. It ships with the B111109 magnetic pickup and a factory K-Factor calibration label, giving you a defined way to scale pulse output. The operating window is stated up front, and the meter reads through the pickup signal. What holds it back is the inline installation requirement: the body has to be plumbed into the piping, and the female NPT connection has to match your line.
Final choice by use case
Pick the TUF-2000B when the ultrasonic kit matches your piping layout and you are prepared to add a logging card. Pick the Blancett B111-120 when your process calls for a turbine-style meter.
