This is a timer module with real time clock. The timer has maximum countdown capacity of 99 minutes 59 seconds. Two other optional capacities 99 hours 59 minutes, and 99 days 23 hours are available too. The clock mode shows hour and minute. Both 12 hr or 24 hr system are available upon request.
Mounted with a UM4 (or AAA) battery holder at the rear side, this clock and timer module is powered with 1.50V, and operated with 6 tact switches, each 3 for both clock and timer. The key operation is simple and user friendly.
The timer is featured with audible alarm when counting down to zero. Piezo buzzer with amplified circuit is built in the module to provide high volume of beep sound. Along with audible alarm, the full LCD display keeps blinking always when counting down reaches zero, unless the "stop" button is depressed.
Four digits LCD display with 16 mm digit height shows real time or countdown timer by depressing of each mode button.
Options of timer countdown capacity:
Timer Capacity: 99 minutes 59 seconds
Resolution: 1 second
Setting Interval: 1 second (minimum)
PCB Size: 70 x 51.2 mm
Plastic Frame: 58 x 40 mm
Thickness: 7 mm (battery not included )
Screen Size: 49.3 x 22.3 mm
Number of Digit: 4 digits
Digit Height: about 16.00 mm
Button:tact s/w, 6 keys, on the front
Power Source: +1.5VDC, use one piece of UM4(AAA), battery holder mounted, but battery not included
Operating Voltage: +1.20 ~ + 1.70 volts
Typical Current Drain: 3μA in normal condition; 400 μA at alarm mode
Operation Temperature: -10 ~ +50 °C
Storage Temperature: -20 ~ +60 °C
Audible alarm, 4 KHz for 1 minute
Level, 1.5 VDC, 100μA, for 1 minute
Regular clock: hour, and minute
Available in both 24-hour and 12-hour version
Resolution: 1 second
Automatic appropriate change of LCD format during counting process
Alert Method: audible alarm for 1 minute
50D-A0N-MS countdown capacity 99M59S
50D-A0N-HM countdown capacity 99H59M
50D-A0N-DH countdown capacity 99D23H
Digital Clock, Countdown Timer, AC On/Off Programmable Timer, and Thermometer