TICKER TIMERS [Plain]: Self marking (with spare carbon discs)
$ 12.00 – $ 94.30 excl. GST
A variety Ticker Timers with spare parts Carbon discs, Repair kit, Plain or Self marking tape 16mm diameter for use in the science laboratory .
TICKER TIMERS [Plain]: Self marking with spare carbon discs.
A variety Ticker Timers with spare parts Carbon discs, Repair kit, Plain or Self marking tape 16mm diameter for use in the science laboratory.
(Wikipedia excerpt: ..."A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software. Stopwatches operate in the opposite direction, upwards from 00:00, measuring elapsed time since a given time instant. Time switches are timers that control an electric switch. ..")
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