I am not seeing all parameters (including one to set the fluid type) and am also not able to do a factor reset. Need password or way to unlock?

M20 Window is for selecting fluid type. It is simple to enter the menu, you only need to press the MENU button, and then enter the number to enter the corresponding window. Press ENTER button to modify. If you need more help, please contact us via email: Service email : sunflowersmile20130401 with hotmail

Will this provide Peak flow rate data? I'm trying to consider this as tool to size water treatment equipment and peak flow rate is required?

Hi, this product can only provide a series of data and one data at a time. And all of data should be recorded manually.

What straight run requirements does this meter need? How many pipe diameters of straight pipe do I need upstream and downstream of the sensors?

The tested pipeline needs to be a dense medium that can transmit ultrasonic waves, such as stainless steel, carbon steel, copper pipe, PVC, FRP, PPR, etc. After you input outer circumference (M10) or input pipe diameter (M11), wall thickness (M12), installation method (M24), and then automatically calculate the transducers spacing(M25).

Can I use it with carbon or stainless steel? or Do I need other sensors?

Yes, it can use with carbon or stainless steel, and the ultrasonic flowmeter come with S1+M2 transducers, and the measuring range is DN15-700mm (1/2-28") .

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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CGOLDENWALL Handheld Ultrasonic Flowmeter Clamp on Flow Meter Portable Liquid Flow Meter with S1+M2 Transducers for Copper/PVC Pipe DN15-700mm 1/2-28" ((Old or New Panel))

Product ID: 47247560

💾Stores 2000 data lines

📏Measures DN15-700mm pipes

🔋12-hour rechargeable battery life

€ 926.28

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📊 Flow measurement redefined—precision, portability, and power in your hands.

ALL DAY OPERATION - High-capacity rechargeable battery powers continuous use for up to 12 hours—work uninterrupted.
CLAMP ON CONVENIENCE - Non-invasive setup means zero downtime—measure flow without halting production.
DUAL TRANSDUCER RANGE - S1+M2 transducers cover pipes from 1/2" to 28", adapting seamlessly to your project scale.
SMART DATA MANAGEMENT - Built-in logger stores up to 2000 readings, easily exportable via RS232 for in-depth analysis.
PRECISION YOU CAN TRUST - ±1% accuracy with 0.20% repeatability ensures reliable, actionable data every time.

The CGOLDENWALL Handheld Ultrasonic Flowmeter is a portable, clamp-on device designed for accurate liquid flow measurement on copper and PVC pipes ranging from DN15 to 700mm (1/2" to 28"). Featuring dual S1+M2 transducers, it delivers ±1% accuracy with a digital display showing cumulative and instantaneous flow, velocity, and status. Its rechargeable battery supports up to 12 hours of continuous use, while a built-in data logger stores 2000 readings accessible via RS232. Ideal for diverse liquids including seawater, alcohol, and fuel oil, it enables non-invasive, real-time monitoring without production interruption.

Specifications

ASIN	B01N14JHL7
Batteries	1 Lithium Polymer batteries required.
Best Sellers Rank	#283,634 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #234 in Flowmeters
Customer Reviews	3.6 3.6 out of 5 stars (59)
Item Weight	12.03 pounds
Item model number	SG-1550
Manufacturer	CGOLDENWALL
Package Dimensions	19.8 x 16.7 x 5.8 inches

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