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Heathrow Scientific Triple Timer & Clock | HS24490M Default Title Heathrow Scientific
Heathrow Scientific Triple Timer & Clock | HS24490M Default Title Heathrow Scientific

Heathrow Scientific Triple Timer & Clock | HS24490M

$31.00

    Follow three timed tasks on one simultaneous display, with independent starts and count-up after the countdown ends.

    • Three countdown channels; 20-hour timing capacity
    • Memory recall and 60-second audible alarm
    • One timer; AAA battery included

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See three intervals together

Follow three timed tasks on one simultaneous display, with independent starts and count-up after the countdown ends.

Heathrow Scientific Triple Timer & Clock | HS24490M โ€” See three intervals together
Actual manufacturer product view. The order unit and supplied contents are stated below.

See three intervals together

The triple display is the reason to choose this model: each task has its own visible timing line rather than requiring repeated switching between a single readout. The channels can start separately for staggered work or together for parallel intervals. Assign each display to a specific task before starting so the relationship remains clear when you return to the bench.

Set, lock and follow the selected channel

The matching manufacturer instructions show a slide switch for SET/LOCK and a second selector for clock, individual timers or all three timers. Set the required hours, minutes and seconds in SET, then move to LOCK. The START/STOP control pauses and restarts timing. This control sequence is useful when deciding whether a physical selector suits your routine better than a timer that changes channels with top buttons.

Know how long the endpoint has been missed

At zero, the timer gives a 60-second audible signal and then continues counting upward, showing elapsed time after the endpoint. That readout helps distinguish a just-finished interval from one that ended earlier; it does not decide whether the procedure remains acceptable. Memory recall supports repeated timing. The unit is supplied with one AAA battery and occupies 8.6 ร— 6.6 ร— 2.2 cm.

Order the intended pack

HS24490M: Triple Timer & Clock | HS24490M โ€” 1 Each.

Related choices for your workflow

Heathrow Scientific 4-Way Timer with Whiteboard | 120365

Choose the separate whiteboard model when writing task identifiers beside the timing channels is important.

Frequently Asked Questions

Can the three timers start separately?

Yes. Channels may start independently or simultaneously.

Are all channels visible at once?

Yes. The unit has a simultaneous three-channel display.

What happens at zero?

An audible alarm sounds and the timer counts upward to show time elapsed after the endpoint.

Can timing be paused?

Yes. The instructions use START/STOP to pause and restart timing.

What is the timing capacity?

The current manufacturer listing specifies 20 hours.

Which battery is supplied?

One AAA battery is included.

Where is the operating sequence?

The matching direct PDF manual is in Manuals/Brochures; it shows the SET/LOCK and timer-selector positions.

    SpecificationDetail
    BrandHeathrow Scientific
    Catalog numberHS24490M
    Channels3; simultaneous display
    Timing capacity20 hours
    FunctionsCountdown, post-countdown count-up, clock, memory recall
    Alarm60-second audible signal
    Battery1 ร— AAA, included
    Dimensions8.6 ร— 6.6 ร— 2.2 cm
    Order unit1 timer

    Ordering Information

    Cat. No.DescriptionPack
    HS24490MTriple Timer & Clock | HS24490M1 Each

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