Jayron digital 9999 days countdown retirement timer,built-in battery can be replaced,user closed, magnet adsorption,used for wedding retirement Christmas holiday laboratory homework exercise gym exercise sports classroom meeting work kitchen cooking Product Features: 1 Timer----Programmable timing settings, countdown to read the remaining time of event progress ▶Days, hours, minutes and seconds have their own interfaces for convenient setting and reading.You can set up to 9999 days,23 hours,59 minutes and 59 seconds ▶The clockwise timing function is equivalent to a stopwatch,which can record all the time you spend. ▶Use the "SET" button to enable the setting countdown; the "▲" and "▼" buttons are used to adjust the target value.The "S/S" button is used to start or stop event timing. press the "S/S" button Directly to enter the incremental timer function and use it as a stopwatch. ▶When the user shutdown, the timer setting interface will be suspended, but when it is restarted, the settings will still be retained. ▶The timer can be reset manually. 2 Battery----Replaceable built-in battery ▶Contains two CR2032 210mAh batteries, which can be replaced. ▶When the LCD display is dim,it reminds BAT1 capacity is not enough. ▶When the buzzer sounds weekly,it reminds BAT2 capacity is not enough. ▶Theoretical computation time:BAT1 battery life is about 1.5 years;BAT2 battery life is about 1 years. 3 Other Features ▶Magnet adsorption,can be adsorbed on the refrigerator, etc.for easy viewing at any time. ▶Accessories:product;user manual;battery CR2032*2;Box. ▶CE and ROHS certification. 4 Works on ▶This product is suitable for all things reminding occasions:family life, work and office,vacation and leisure, learning fitness and other special occasions,such as planning vacations,tracking retirement time,recording baby birth.

• Small Desk or Cabinet Body: About 4.33 x 1.89 x 0.53 in and 2.26 oz ABS housing; place flat on a counter, shelf or desk, or use the rear magnet on suitable flat metal surfaces
• Button Setup Reminder: This Jayron timer uses SET, up, down, power and S/S keys for entry, start, pause and resume; hold keys to move through larger day values during setup

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