The first time I bought it back in the distant 90s to my parents (still an old design). It still works. (more than 15 years). At work, I begged my boss to buy this particular device (the rest use Siemens). It has been working for more than 5 years without problems (however, I buy batteries myself). Got pros: Reliable, like an anti-tank gouge. We simply do not kill the device. Cons: Sometimes you need to change the batteries, but you can live without it.
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