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1 × pH Meter Sensor Analog Kit (Arduino Compatible)
Select "Generic ESP8266 Module" or "NodeMCU 1
This case is perfect for prototyping or wall-mounted Raspberry Pi servers
so there are no electrical pins to wire
Lithium Polymer Battery 3.7V 2500mAh - JST-PH Connector 1758 1 × pH Meter Sensor3. 7V Lithium Ion Polymer Battery 2500mAh The Lithium Ion Polymer Battery 3. 7V 2500mAh is a rechargeable lithium cell with a JST connector, designed for portable electronics, wearables, IoT devices, and maker projects. Pair it with a LiPo charger like the TP4056 or Adafruit Micro Lipo. Safety: Lithium batteries can be dangerous if punctured, short circuited, or overcharged. Always use a proper LiPo charger with protection circuitry. 3. 7V battery
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