$6.14
$7.67
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The Velleman Liquid Level Controller Soldering Kit is easy to use in a variety of applications: 1) LED control of set fluid level: LOW, MIDDLE, HIGH 2) Controller: the relay automatically switches a pump and/or valve to keep the fluid level between the LOW and HIGH marks 3) Alarm: if the sensor detects a level which is too high or too low (selectable), the relay will operate a bell or another alarm device.
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