VOSCA Corporation

We are a professional manufacturer of various kinds of clock, timer, programmable timer, chronometer, thermometer, hygrometer, and calculator in Taiwan. With more than 30 years experience in the field, - We have numerous products ready for your choice. - We know how to design product according to your cost target. - We know how to follow your specifications to make your product exactly. - We will try hard to serve you with full satisfaction. we dedicated in the Design and Manufacture of: TIMER–Comprehensive versions for various applications. CLOCK–Various output modes for different application. TARGET DAY COUNTDOWN CLOCK. CHRONOMETER–Lifespan meter or other applications. THERMOMETER. HYGROMETER. CALCULATOR - Customer Made. Welcome OEM/ODM Project

Timer module 51 series

VOSCA Corporation has earned a reputation to support the 51 Series we sell with the best technical support and customer service in the Electronic Supplies industry. Moreover, we have devoted ourselves to serve the clients with our durability, fair price and strong efficiency of Timer Module.
  • LCD screen size 49.4 x 22.3 mm
  • Good for models with external power and buttons connection; the connection pins at both edges of PCB
  • Output poles can be arranged at both edges of PCB;
  • 3 tact switches normally, can be up to 6 buttons
  • Thickness 1 mm higher than 50 series, good for LED backlight installation

51T-A0H-HM

99 hour 59 minutes Countdown/Up Timer Module with LED Back-light

This is a 99 hours 59 minutes countdown/up timer, with 1 second resolution, and one minute minimum setting interval. Due to the available of count up feature, it can be used as a chronometer.

As well as amber color, yellow, green, and white colors are available for the back-light too. 2 pieces of AAA (UM4) battery holder is mounted on the back for testing purpose only. Due to LED consuming power to high, suggest to connect power source externally. Requested power is 3.3 VDC. Audible or pulse output poles are available. This is an ideal module for full function evaluation.

Audible endless alert method is so called PSEA (Power Saving Endless Alert ): Beep 6 times, then wait for 10 seconds, and repeat again. Never stop alert, unless "STOP" button is depressed.

The module also provides open collector output pole to allow people use it to control other power operated device.

Versions with other maximum countdown capacities:
  • 51T-A0H-MS: 99M59S
  • 51T-A0H-HM: 99H59M
  • 51T-A0H-DH: 99D23H
  • 51T-A0H-DD : 9999D

51T-A0H-DH

99 Days 23 Hours Countdown/Up Timer Module with LED Back-light

As a professional digital clock, timer, thermometer, and hygrometer supplier, we can also offer customized modules with special control pole, timers with constant period to countdown, meters to measure or indicate lifespan of filter, cartridge, and etc.

Welcome OEM / ODM partners for cooperation.

This module has 99 days 23 hours countdown capability, with 1 second resolution, and one hour minimum setting interval. Count up feature is included too. Therefore it can be used as a chronometer to count up to 9999 days.

Back-light in amber color. Yellow, green, and white colors are available too upon request. 2 pieces of AAA (UM4) battery holder is mounted on the back for testing purpose only. Due to LED consuming power to high, suggest to connect power source externally. Requested power is 3.3 VDC. Audible or pulse output poles are available. This is an ideal module for full function evaluation.

Audible alert method so called PSEA (Power Saving Endless Alert ): Beep 6 times, then wait for 10 seconds, and repeat again. Never stop alert, unless "STOP" button is depressed.

This module also provides an open collector output pole to allow people use it to control other power operated device.


51 Series features high quality and excellent durability. Moreover, our goal was to create a shopping experience that was enjoyable, one stop and secure;sales team can answer your questions and provide help with choosing any of our 51 Series products.