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lifetime meter, day adjustable timer module - 9999 days

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lifetime meter, day adjustable timer module - 9999 days
This is a day adjustable timer module, with 9999 days countdown & count up capacity. The resolution is 1 second after counting down under 1 hour. The minimum setting interval is one day. Count up feature is included. Therefore it is good to use as a lifetime meter or chronometer. Furthermore, for long range counting capability, it can be applied to:

- measure or indicate the lifetime of any long-lasting or valuable parts or devices, such as water or air filter, cartridge, battery, UV lamp, ... etc.,
- executing lifetime testing in laboratory or workshop

As people know the most important feature for a timer is perpetual reminding user that the set time is up. But it wastes too much power, especially for battery operated devices. Therefore it becomes difficult to make. Under our R/D team’s effort, we specially program a called PSEA (power saving endless alert) or perpetual alert to make this feature realistic. This unique feature is available upon request. Normally the module provides one minute alert.

If required, this module can provide an open collector output pole to allow people use it to manipulate other power operated device.
Capacity: 9,999 days
Resolution: 1 second after counting down to 1 hour
Setting Interval: 1 day (minimum)
  1. Physical Size
    • Plastic Frame - 35 x 18.4 mm
    • Module Thickness - 4.3 mm without battery;10.1 mm including battery
  2. LCD
    • Screen - 20 x 10.92 mm
    • Number of Digit - 4 Digits
    • Digit Height - 7.0 mm
    • Screen format automatically changed to the most appropriate one
  3. Button: 4 keys, up/down/start-stop/reset
  4. Electrical Specification
    • Power Source - 1.50 volts, 1 pc of LR44 or external connection
    • Operating Voltage - +1.20 ~ + 1.70 volts
    • Current Drain - under 3μA normally
    • Operation Temperature - -10 ~ +50 ℃
    • Storage Temperature - -20 ~ +60 ℃
  5. Options of Alert Methods
    • One minute 4K Hz audible alert normally
    • PSPA (power saving perpetual alert) alert upon request
  6. Output Pole: Open collector, upon request
List of Versions Available:
Model No. Min. Setting Interval Countdown Capacity Count Up Capacity Resolution Countdown Count Up
20T-A0M-DD 1 day 9999 days 9999 days 1 sec v v
20T-A0M-HH 1 hr 9999 hours 9999 hours 1 sec v v
20T-A0M-MM 1 min 9999 minutes 9999 minutes 1 sec v v
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