We decided to update from Mercury to digital, New Thermometer following a couple of health hiccups. Get home and read the fine print, it is a throw away after a life span of 3 years or less. Sealed unit, cannot replace battery, but somehow "dispose of correctly statement " also in fine print.
It could be a safety measure to prevent children access to button battery, I would have thought a screw or two would suffice, but do not know any ankle biters these days either.
Having spent many professional years at the forefront of electronic design I can assure you that my first aid kits contain mercury thermometers and I suggest you take that piece of electronic junk, toss it in the bin and buy a mercury unit instead.
Like compasses, mercury thermometers just work - unless they are obviously broken. They don't need a battery, they don't have maximum storage temperatures (probably about 40C), they don't have LCDs you can't read if they are too hot or cold. Toss it.
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Part of the problem is that " ye old mercury unit " has always been a fair B.....D to shake down after use and is very difficult to see as well, also from new. Just a potential landfill I guess.
I had something similar, but do not remember the brand name, or if it had a replaceable battery
But...
Opps, egg on my face here, I never actually read the instructions
I assumed that it was OK, as I purchased it from a chemist shop
When I really wanted to use it, (for a second time), about three years after I purchased it, it just did not work
I recently purchased something similar from Aldi, in Bunbury, but it is infrared Ear and Forehead thermometer
It is called Essential Health. and it comes with 2 X AAA 1.5 volt batteries, which are replaceable
The beauty about a mercury thermometer is that there are no moving parts.
The mercury expands when subjected to temperature and voila, you get a reading.
This thing will give you that accurate result time and time over many years and
never break down. About as simple as it gets. The are only two situations where
you will get a fail.
The first one is the obvious drop it and it breaks.
The second one is if it is subjected to temperatures higher then it was designed for
and blows the top off.
Same result, it will break.
It may be made in China, but there is a good chance it was designed & ordered by Australians.
Being unable to replace the battery is ridiculous.
I doubt that there was any Australian input other than writing a legible instruction sheet. Forty years ago it used to be the case that the design of a plastic mould could cost $10K or more, but I have no idea what the costs are today.
There are plenty of products and manufacturers to choose from:
As for the non-replaceable battery, I guess it could be argued (weakly) that a button battery poses a hazard to children, but this risk could be eliminated with proper design.
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"No friend ever served me, and no enemy ever wronged me, whom I have not repaid in full."
A few months ago all the old non compliant button cell packaging had to be removed from shops as I found out at Jaycar.
But they shoved all the batteries in "lucky bags" with other old stock.
There happened to be a few lucky bags with the button cells I needed. So I bought the bag, took the batteries & told them to bin the rest of the rubbish.
Not sure how compliant with selling button batteries with non compliant packaging this is, but Jaycar obviously thought it was a workaround.
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50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Our new new one is by Vicks, it has 2 replacable 1632 batteries, access by a quarter turn disc, then a sharp knife need to lever disc off the rubber o ring seal,
so almost child proof me thinks. With one of those " lifetime warranties "