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Pump outlet diameter: 8mm
The other junction
Access control
This is a high quality 5V DC songle power relay
This module is plug and play
Analog Water pH Sensor V2 (DFRobot Gravity) r503 Pump outlet diameter: 8mmGravity: Analog pH Sensor Meter Pro Kit V2 For Arduino is a professional Arduino pH Sensor Meter Kit with an industrial electrode. This ph. sensor module is an upgrade for V1 with improvement is calibration method, more friendly use and better accuracy Attention The bottle cap of the probe contains protective liquid (3. 3mol L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white
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