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What is a geiger counter?
A Geiger counter is a device for measuring radioactivity by detecting and counting ionizing particles.
Pearl outdoor/indoor thermometer, can battery be replaced? If so, how?
can the battery be replaced. If so, how?
open the cover on the back of the device. this is done by squeezing the cover of the battery sector slightly. then remove the old batteries and replace the new ones (I assume you have the AAA) and put the new ones in keeping with the polarity for the device to work properly and then close the battery compartment cover in reverse order
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