Adafruit 4086 2.13 inch Tri-Color eInk / ePaper Display with SRAM - Red Black White TIP31C NPN Power Transistor - (Pack of 5) 4GHz wireless RF technology combined

4GHz wireless RF technology combined with Bluetooth connectivity

Each 10mm OD by 8mm ID by 1000mm length pultruded carbon fiber tube weighs approximately 25-30 grams

You can calculate the water flow by counting the pulses from the sensor output

or use a small adhesive heatsink on the module's top surface

reducing smudging and maintaining optical clarity without frequent cleaning requirements

Adafruit 4086 2.13 inch Tri-Color eInk / ePaper Display with SRAM - Red Black White TIP31C NPN Power Transistor - (Pack of 5) 4GHz wireless RF technology combinedAdafruit 4086 2. 13 inch Tri Color eInk ePaper Display with SRAM Red Black White The Adafruit 4086 is a 2. 13 inch tri color electronic ink display module capable of rendering images in red, black, and white with exceptional clarity and minimal power consumption. This display is widely used by embedded systems engineers, IoT developers, and makers who require low power visual output for battery operated applications including smart labels,