DIGITEN G3/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1-60L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible 15cm Cable Length auspowers_batchone and stainless steel

and stainless steel

which can maintain 1 Gallon Per Hour water flow and 10-60 PSI working pressure stably even in long circuits and uneven terrain

Because if you already have a Hub and a battery

REY-X Upholstery Tack

DIGITEN G3/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1-60L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible 15cm Cable Length auspowers_batchone and stainless steelDIGITEN G3 4" Water Flow Sensor, Food Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1 60L min Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible Specifications: Frequency: F=5. 5 Q (L Min), error: 2%, current can not exceed 10mA, 330 pulses liter. F=onstant units of flow (L min) time (seconds). Flow range: 1 60L minMaximum current: 10 mA(DC 5V) Working voltage range: DC 5 18 VLoad capacity:10 mA(DC 5V) Operating Temp: 80Operating