DIGITEN G2" 2 inch Water Flow Hall Sensor Switch Flow Meter 10-200L/min
Easy to install.
Maximum current:15 mA(DC 5V)
Working voltage range:DC 5-18 V
Load capacity:≤10 mA(DC 5V)
Operating Temp:up to 80C,Operating humidity:35%-90%RH
Allow compression:Water pressure 1.75 Mpa below
Insulation resistance:>100M OHM
Output Waveform:Square Wave,output pulse signal.
G2" Flowmeter x 1
Fast service and quality tool!
Even though this does have British threads, it will fit a 2" American threaded PVC coupler. I added a little Silicon sealant and I've had no leaks what so ever. I have confirmed formula for liters is 12 pulses per Liter. I used this for a Raspberry Pi 3 based pool controller and it works flawlessly.
Great quality but missing specs. Hard to find out what the K value is for the 2" flow meter.