![](http://ueeshop.ly200-cdn.com/u_file/UPAC/UPAC135/2005/photo/6b3d1e8b6e.png)
Warning:
When the device works, all the hand pieces should be connected.
When one hand piece is removed from a device of 2-5 connectors/hand pieces,
please connect this male connector to the device.
This connector is also used to diagnose the water flow.
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![](http://ueeshop.ly200-cdn.com/u_file/UPAC/UPAC135/2004/photo/84f4c3cfea.jpg)
刘淑芬:所有的单插和多插有水路的机器都配一个带水流指示的公插;所有射频小激光光子和808机器都需配一个脚踏。
male connector model H with water flow observation http://t.cn/A6A1OjiP
Even IPL elight SHR machines have flow sensor inside, water level indicator behind the machine, magnetive valves/relays to switch water flow among different connector/hand pieces, it is also most interesting that every machine has this male connector with water flow observation.
Please note one more part, one more possible problem, 3 more relays to switch 4 hand pieces of parallel water circuits may be more difficulties of diagnose and repair. In future probably we will add relays to switch among 3-5 hand pieces, but this connector with water flow observation will be always the best one to be with all machines.