300 days periodic reminder

This is a 300 days periodic reminder with single key operation. Good for 300 days periodic reminding, like body treatment, meeting, filter replacement, cartridge replacement, UV lamp replacement, healthy checking, oil change, machine or car inspection, equipment maintenance, and, ... etc.. Just single press of the key to initial the countdown from the default value, 300 days and start to countdown. There are two ways of endless alert when time up:

---- Endless Visual Alert: Full LCD display blinking always
---- Audible Alert: So called PSEA (Power Saving Endless Alert) endless alarm, with significant power saving during audible alarm; beep 6 times then wait for 10 seconds and repeat again.


The LCD display pattern will be changed automatically to appropriate format during counting as: DD:HH --> HH:MM --> MM:SS. 1 second is the minimum resolution when countdown under one minute.

Thanks for our strictly QC control of power consumption in production line, more than 80% of battery power still remained after the first cycle of 300 days countdown to zero. The original installed battery is possible to last for 10 years without replacing new battery if aural alert is not activated and the battery aging issue is not considered. Therefore, in order to save power for long term running, please try to stop the audible alert as soon as possible after countdown to zero.