The locations to which you can buy a precision scale will vary depending on it's requirement. If it's something light weight such as mailing a letter, or something such as a scale to weigh yourself you may try a local department store. If it's something to weigh in tons or possibly higher you could visit your local hardware store. Should either option be unsuccessful, you might have luck from a sales associate to direct you further.
Ohaus are high precision, expensive scales which can be over 2000 dollars. You can buy them from industrial websites and consumer websites such as Amazon.
It's up to you. If you think digital weight scales work better or perform a better job, then I would buy it if I were you. Or you can stay old-school with a stand on weight.
You can buy it at best buy
the best place to buy a car i guess is at a place were people normally get cars.
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best buy is the best place
I would personally buy .25 gram high impact bbs for good precision
best buy Get the gold mebership to start.
You can find a good precision camera to purchase at your local Best Buy as they offer a selection of high quality products. You can also purchase one online from Amazon.
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You can buy them at the following two places that I recommend. The second place that I recommend is Wal Mart or their website and the number one best place to buy a 22" TV is at Best Buy.