SparkFun Polarized Connectors - Housing (4-Pin) Parts Our 350 GPH pump does

Our 350 GPH pump does not have enough pressure for this valve

Can be cut to size with a pair of wire-cutters

This FSR can sense applied force anywhere in the range of 100g-10kg

photo resistor

a method of filtering this noise and pairing transmitter and receiver will be necessary

SparkFun Polarized Connectors - Housing (4-Pin) Parts Our 350 GPH pump doesPolarized connectors and headers for your perf board PCB projects. Use these connectors for power connections or any sensor general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the female housing. Be sure to order the mating header and crimp pins! Pins have standard . 1" spacing.