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3x 18650 3
Built-in XT60 Socket
Provide both digital and analog output
The battery with a protection circuit provides over-voltage
Note:SD Card not included
Hex Key / Allen key / Allen Wrench satin 3x 18650 3A hex key (also, Allen key and Allen wrench) is a simple driver for screws that have heads with internal hexagonal recesses (sockets). Hex keys are formed from a single piece of hard steel hexagonal rod having blunt ends that fit snugly into similarly shaped screw sockets. The rods are bent to 90, forming two arms of unequal length resembling an "L". The tool is usually held and twisted by its long arm, creating a relatively large torque at the tip of
