Solar-powered thermometer replaces mercury-in-glass models

Solar-powered thermometer replaces mercury-in-glass models
Solar-powered digital thermometer from Palmer Instruments

Solar-powered digital thermometers from Palmer Instruments are a direct replacement for industrial mercury-in-glass (MIG) and bimetal thermometers.

“It doesn’t require any batteries. It doesn’t require any line power,” says Tadd Ayers, product engineer for Palmer Wahl...

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