What is the K value for this sensor please?

The label on the sensor provides an "F" number that is the Hz for LITERS/minute; my search for a "K" value states that number is GALLONS/minute. A liter is VERY ROUGHLY a little less than a quart, so a K value should be roughly 4 (3.78541) times an F value.

would i be able to measure the flow through my drip irrigation with this? never measured but I'm guessing it might be less than .3l/min at times

I have three different models of Gredia's flowmeters and I found them to be inaccurate at low flow rates, I presume there is not enough force to spin the wheel ... F = ma.

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3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min

3/8" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-10L/min

Product ID: 118205517

⚡DC 5-24V wide voltage compatibility

💧0.3-10L/min flow range

🔒Food-grade, ROHS-certified materials

COP 65051

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Flow smarter, not harder — precision you can trust every drop!

ROBUST SAFE - Food-grade plastic with ROHS compliance guarantees purity and durability
LEAK PROOF DESIGN - Sealing ring technology prevents water leakage, protecting your system
VERSATILE APPLICATION - Ideal for coffee machines, water purifiers, beverage dispensers & more
PRECISION FLOW CONTROL - Accurate ±2% measurement ensures flawless fluid monitoring
UNIVERSAL QUICK CONNECT - Fits G3/8 inch tubes for seamless integration in your setup

This 3/8" Quick Connect Water Flow Sensor features a hall effect flowmeter with a precise 0.3-10L/min range and ±2% accuracy. Designed with food-grade, ROHS-certified plastic, it supports DC 5-24V operation and up to 0.8Mpa water pressure. Its leak-proof sealing ring and compact size make it perfect for integration in water heaters, coffee machines, purifiers, and beverage systems, delivering reliable, hygienic fluid measurement with easy installation.

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