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JUMBO 

DISPLAY 

DIGITAL 

TIMER

USER’S MANUAL

TI899B

Please read this manual carefully and thoroughly before using this product.

SETUP INSTRUCTIONS

1. 

Remove the plastic film from the display.

2. 

In the back of the unit, open the battery
compartment by sliding its cover up and off in the
direction of the arrow (see figure). 

3. 

Insert the supplied “AAA” battery in the direction
indicated. The beeper will sound quickly four times. 
The display will show a running clock beginning at 

AM 12:00:00

.

4. 

Replace the battery compartment cover.

TO SET THE CLOCK

1. 

Press and hold the 

CLOCK

button. A black cursor will

blink in the bottom left corner of the display.

2. 

Press the sequence of number keys corresponding
to the present time, adding an initial 

0

for single-

digit hour numbers. For example: To set the clock to
4:15 (AM or PM), press 

0 4 1 5

. To set the clock to

11:30, press 

1 1 3 0

. If you make a mistake entering

digits, press the 

CLEAR

button. This resets the

procedure to the first step.

3. 

Toggle between 

AM

and 

PM

(shown at the left of the

time) by pressing the 

START/STOP

button (stenciled 

AM 

 PM

in black).

4. 

When the hours and minutes digits (and AM or PM
setting) of the time are correct as shown, add the
seconds digits by pressing any two number buttons 
(or 

0 0

at the top of the minute for a precise setting). 

This saves the clock setting.

5. 

To view the clock display in 24-hour (military)
format, press the small gray button on the upper
back of the unit stenciled 

12 HR 

 24

HR in black.

Magnet

TI899B Manual FINAL-102711_awb  10/27/11  3:53 PM  Page 1

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