does this unit take batteries? is there a way to run it on 12 volts only?

Does not take batteries. Use a 12 volt battery and an inverter or supply it the dc voltage that the power supply provides it with batteries. You will just have to figure out how long they will last without a charger or put a solar charger on it. Depends on your particular situation.

can this be used outdoors?

The controller isn't waterproof, you can put it into a box.

Can you adjust this to deliver 4 pounds of water on each press of the button? Will it withstand doing 4 pounds of water 300 times per session?

Yes to #1. 300 times per session? Depending on how long a session lasts...

Does it stay ON all the time or does it time out and turn off? Does it remember values through powee cycle?

It stays on but screen dims to sleep but function continues. Not sure if function continues with interupted power. Did not test. Program and calibrations are safe.

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DIGITEN Water Flow Control LCD Display+1/2"Flow Sensor Meter+1/2"Solenoid Valve+12V power

DIGITEN Water Flow Control LCD Display+1/2"Flow Sensor Meter+1/2"Solenoid Valve+12V power

Product ID: 76752354

Details

Brand
DIGITEN
Inlet Connection Size
0.5 Inches
Manufacturer
Digiten
Material
Plastic
Number of Items
4
Number of Packs
1

💧Real-time flow volume display

🔌Auto solenoid valve control

⚙️±1% precision accuracy

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Description

💧 Control your flow, own your brew — precision meets power!

SMART AUTO SHUTDOWN - Solenoid valve automatically stops at your preset flow value—zero waste, max efficiency.
INSTANT VOLUME INSIGHT - Monitor real-time water flow in liters or gallons on a crisp LCD.
PRECISION FLOW MASTERY - Achieve ±1% measurement accuracy for flawless liquid control.
UNIVERSAL SENSOR COMPATIBILITY - Works seamlessly with various hall effect flow sensors via adjustable K value calibration.
INTEGRATED TEMPERATURE TRACKING - Built-in sensor measures liquid temperature up to 120℃ for smarter process control.

The DIGITEN DFC15FV408 is a 12V-powered water flow controller kit featuring a high-accuracy (±1%) flow sensor, solenoid valve, and LCD display. It offers real-time volume monitoring in liters or gallons, automatic valve shutoff at preset flow levels, and temperature sensing up to 120℃. Compatible with multiple hall effect sensors through adjustable calibration, it’s designed for easy installation and precise liquid management in professional and DIY applications.

Specifications

ASIN	B07G465DFR
Best Sellers Rank	#120,552 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #87 in Flowmeters
Brand Name	DIGITEN
Connector Type	G Connector
Customer Reviews	4.1 4.1 out of 5 stars (31)
Inlet Connection Size	0.5 Inches
Item Weight	200 Grams
Manufacturer	Digiten
Manufacturer Part Number	DFC15FV408
Material Type	Plastic
Model Number	DFC15FV408
Number of Pieces	5
Number of Ports	2
Outlet Connection Size	0.5 Inches
Outlet Connection Type	G Connector
Size	1/2 inch
Thread Size	M8
Thread Type	M8
Unit Count	1.0 Count
Valve Type	solenoid valve

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