How long will the HyperLogger run from its internal batteries?
This depends on the application, but in many cases the HyperLogger will run for up to 3 weeks off a fresh set of alkaline D-Cells. Also, an external low-voltage power supply (wall transformer) is provided with the HyperLogger which will power the unit indefinitely. And if the utility power fails, the HyperLogger will automatically transfer to battery power.