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C61F-GP AC 220V floatless level switch / relay with socket base 220VAC C61F - GP water level controller / pump automatic switch
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C61F-GP AC220V 50/60HZ Floatless Level Switch Liquid Level Switch Liquid Level Switch Controller - - Amazon.com
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Liquid Floatless Level Switch Controller, Level Switch Floatless Relay Electrical Floatless C61F-GP Small For Industry For Workwer - Walmart.com
![Figure 3 from Design of automatic controlling system for tap-water using floatless level sensor | Semantic Scholar Figure 3 from Design of automatic controlling system for tap-water using floatless level sensor | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/f23f842dd23a71197395bbb5300a08b756c1e1f3/2-Figure3-1.png)