Select 1-, 7-, or 32-day operation with the flipof a switch. A flashing LED indicates that theunit is operational. Unit uses two C batteries(included) for up to 6 months of continuousoperation. Test battery condition with the press of a button. The quartz-controlled drive mechanism consistently rotates chart drumeven when batteries are weak
This item powers up. However, it is being sold as is with no warranty. No manual or peripherals are included.