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

Product ID: 118205517

⚡DC 5-24V wide voltage compatibility

💧0.3-10L/min flow range

🔒Food-grade, ROHS-certified materials

€ 18.44

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Description

💧 Flow with confidence — precision meets purity in every drop!

DURABLE SAFE - Crafted from food-grade plastic, fully ROHS compliant for health-conscious use
LEAK PROOF DESIGN - Sealing ring guarantees firm connection and zero water leakage
PRECISION FLOW CONTROL - Accurate ±2% measurement ensures flawless fluid monitoring
VERSATILE APPLICATIONS - Ideal for coffee machines, water purifiers, beverage dispensers, and smart campus devices
UNIVERSAL COMPATIBILITY - Fits standard G3/8 inch tubes for seamless integration

This 3/8" Quick Connect Water Flow Sensor offers precise fluid measurement from 0.3 to 10L/min with ±2% accuracy. Powered by a versatile DC 5-24V supply and built from food-grade, ROHS-certified plastic, it ensures safe, leak-proof operation. Perfectly suited for water heaters, coffee machines, purifiers, and smart devices, it combines durability with easy installation for professional-grade fluid monitoring.

Specifications

Asin	B07MY7H45V
Best Sellers Rank	#36,135 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #11 in Flowmeters
Date First Available	January 19, 2019
Item Model Number	GR-301
Item Weight	1.06 ounces
Manufacturer	GREDIA
Package Dimensions	4.33 x 3.03 x 1.46 inches

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