Cảm biến đo lượng mưa hãng Maximum Rainfall Collector
    
        
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             Tipping bucket, self-emptying rain collector.  8" diameter openning meets NWS specifications for size and accuracy. 
            Dimensions: 8.63" O.D. x 7.88" Deep 
            Weight: 1.77 lbs. 
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The rainfall collector requires no manual emptying. Each tip of the bucket is equivalent to 1/100th of an inch of rain. It utilizes a normally open circuit that is momentarily closed each time it tips.  As such, it can be connected to any simple counting circuit,