Mobrey小型超声波液位开关003S系列已经为停产机型
品牌：英国莫伯雷
2016年1月开始此机型工厂已不再生产！！！

The moulded body contaings two piezo-electric crystals,one each side of a gap at the tip of the sensor.
An ultrasonic signal is teansmitted from one crystal into the gap,but if there is air or gas in the sensor gap then the signal is not received by the other crystal.However,if there is a liquid present,the signal will switch the output ccircuitry to signal the presence of a liquid.
Self-contained liquid level alarm
Manufactured in Polyphenylene Sulphide(PPS) for corrosion resistance in most liquids
Threaded process connections for tank mounting

Ultrasonic liquid level switch 003S Integral sensor series
Description
Manufactured in Polyphenylens Sulphide (PPS) for corrosion resistance in most liquids,the 003 range of sensors can be mounted in any position in a tank using either a 1" or 3/4" thread available in BSPP,BSPT and NPT thread forms.
A thread is provided on each side of a hexagonal boss to allow either external or internal/pole mounting of the sensor.
Comprising a one piece moulded body with an integral pcb,the 003 switch is factory sealed and supplied with a 3m flying lead for customer connection. The Mobrey 003 switch is designed for high or low level alarm duties to give a voltage free changeover contact or dual solid state transistor output for alarm signalling or as part of a pump control system.
Operation
No moving parts
European Directive compliance
EMERSON(MOBREY)