The device operates on AAA batteries (often included, sometimes not, check your specific listing). Locate the battery compartment on the back of the device.
Briefly press the reference key to choose whether the measurement starts from the top or the bottom (default) of the device. dtape dt50 user manual pdf install
Once the batteries are installed, the device may power on automatically or require a press of the main button. The device operates on AAA batteries (often included,