A:The product says all:  
  The liquid switch conduct and actions spread the feeling component can to water tower, high water tank, reservoir, the dirty water exhausts etc. realization to control automatically, being applicable to various water pump system.Extensively applied in the work mineral 企 business, public building and the environmental protection facilities of to drain and the liquid the auto control system.
My company ushers in a foreign technique, the core component adoption mercury switch, produce a free from pollution, match a modern environmental protection to request of the mercury type liquid switch.There is greater progress on the technique moreover, attain completely advanced level at home and abroad in the function and the top of the quality! 
 Product characteristics:  
  The design and strict manufacturing craft of lead, provided dependable assurance for the quality of the product; the outer shell adoption ABS engineering plastics, the machine strength is high, sealing completely function good, not poisonous tasteless, bear corrosion; the structure is simple, safety credibility, supervise and control scope greatly, install extremely convenient;internal component through many the layers seal completely, the safety is very high, the life span reaches to 200,000 times above!
Two:Install a method:
The right location of the controller is proper to fix central in the pond, if the desire is fixedly in the pond side, the beard avoids floating ball to touch and the pond wall, the in order to prevent creation the mistake move.
The drop hammer does fixed-point, tying to take fixed electric cable, floating ball enactment water level.
Three:Electric voltage electric current:DC 50V / 0.1A
Four:Switch category:Mercury switch
Five:Temperature scope: 10 ° ° C-60 Cs
Six:Regulation:
The mercury switch can't control motor directly, have to match with the liquid noodles controller usage, this switch is a low electric voltage low electric current, strictly forbid to do a test by super electric current, the in order to prevent breaks switch function.