... 2.food grade PBT material 3.small, practical 4.can be arbitrary Angle adjustment INTRODUCTION Introduction 1, environmental protection design, ... structure, connect more convenient;3, hall element for Japan imports, sensitive and reliable;4, flow range: 0.1-3 L/min, working voltage: ... DC3-18 V, rated voltage DC5V;5, output voltage (rated DC5V) : high level 4 ...