No idea where to purchase that item locally. As for most of medical equipment, it is not advised to buy it locally except for official retailers.
An advise in case the amount to be expended is considerable: check your donor policy on local procurement of medical equipment before engaging the expenditure.
In any case, and to be practical: a possible manufacturer mentioned in my old catalog is "Moneray International, Hong Kong". Not much on the internet about them...
Here some technical specifications that may help in your research: - activation by pressing center of the timer - counting cycle of 60 sec - audible signal at start, after 30 sec and at 60 sec - battery operated: 10,000 cycles of 60 sec, not replaceable
And some packing dimensions for your transportation costs: - Weight: 0.050 kg - Volume: 0.207 dm2
I hope it helps. Good luck!
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