20C-AXG-Z (5 keys)

4 daily alarms clock module

The clock module sized as 35 x 18.4 mm has four daily alarms, available in both 12 or 24 hour versions. Two alert methods are provided by assembly option, one minute regular audible alarm, or perpetual audible alert called PSEA, power saving endless alert. Due to the significant power saving by using PSEA circuit, it is good to be applied to battery operated devices, such as perpetual reminder, dosing reminder, daily routine jobs reminder. People may call this is a perpetual alarm clock module, which activates audible alarm when the set time is up, and never stop unless the specific key is depressed.

A piece of LR44 button cell is mounted on the clock module backside normally. But if necessary, instead of battery power, people can connect external power source too.

Various options of key combination provide engineer the flexibility of designing a 2 keys, 3 keys, 4 keys, and 5 keys product. Additional to the keys of "mode", "set", and "up", the "snooze" and "second reset" keys are available for 5 keys version.

VOSCA is the best brand of clock module in Taiwan. We strive to become the premier provider of timer module, led countdown clock and led alarm clock. Whether you are a first-time buyer or a seasoned professional customer, we are here to serve you and help you make the right decision when purchasing from us.
  1. Physical Size
    • Plastic Frame - 35 x 18.4 mm
    • Module Thickness - 10.1 mm (including battery)
  2. LCD
    • Screen - 20 x 10.92 mm
    • Number of Digit - 4 Digits
    • Digit Height - 7.0 mm
  3. Button: “mode”, “set”, “up”, “second reset”, and “snooze”;
  4. Electrical Specification
    • Power Source - 1.50 volts, 1 pc of LR44 or external connection
    • Operating Voltage - +1.20 ~ + 1.70 volts
    • Current Drain - 3μA typically
    • Operation Temperature - -10 ~ +50 ℃
    • Storage Temperature - -20 ~ +60 ℃
  5. Options of Alert Methods
    • One minute 4K Hzs audible alert normally
    • Perpetual alarm, PSEA (power saving endless alert) alert, upon request
List of Versions Available:
Model No. 12 or 24 Version No. of Alarm Possible No. of Key
20C-AXG or 20E-AXG 12 or 24 x 2
20C-AXG-A or 20E-AXG-A 12 or 24 1 3, 4, 5
20C-AXG-B or 20E-AXG-B 12 or 24 2 3, 4, 5
20C-AXG-Y or 2E-AXG-Y 12 or 24 3 3, 4, 5
20C-AXG-Z or 20E-AXG-Z 12 or 24 4 3, 4, 5


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4 daily alarms clock module
Various options of key combination provide engineer the flexibility of designing a 2 keys, 3 keys, 4 keys, and 5 keys product. Thanks for the sophisticated combination and options of output poles allow designer to do various applications.
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