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4 X AA Battery Holder with Cover and Barrel Socket with 10 cm cable which terminated with a standard 5
Liquid Pump 3/4 inch connection will accept a 19mm hose
the pin can be grounded
They are small
This can be applied to domestic water
Advanced Fingerprint Module dual driver 4 X AA Battery HolderIntroduction: Finger Print Sensor Module or Finger Print Scanner is a module which captures fingers print image and then converts it into the equivalent template and saves them into its memory on selected ID (location) by Arduino. Here all the process is commanded by Arduino like taking an image of finger print, convert it into templates and storing location etc. These modules come with flash memory to store the fingerprints and work with any