liquid level switch 液位开关 ; 液面开关

ultrasonic liquid switch 超声液位开关

Contactless liquid switch 非接触液位开关

electret condenser liquid level switch 电容式液位开关

liquid level control switch 控制开关

Liquid Pressure Switch 液压压力开关

ball liquid level switch 浮球液位开关

photoelectric liquid level switch 光电式液位开关

float ball liquid level switch 浮球液位开关