Probe domestic double-head probe 038-BB-5.7L The shape of the two ends of the needle is outside the pointed needle
As shown, the circuit is a buck rectifier circuit. Trigger, relay control part. 555 and R1, R2 and three probes form an RS trigger. When the farm water level is lower than the electrode B point, the 2 feet are grounded through R1, which is low level, 555 is set, 3 feet are high level, relay J Pulling in, motor M is energized, running pumping.
Stage Lights,Beam Lights,Stage Lights,Moving Head Lights
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