I have 2 HSM100 devices and they usually seem reliable. One of them I wired to a permanent 5 Volt power supply. The other senses outside temperature (in a sealed box of course) and is battery powered. This is the one with the strange fault.
When I replace the 3 AAA batteries, the red LED stays permanently on. This means the device is not going into sleep mode and the batteries go flat after 2 or 3 days. Pressing the blue reset button wont make a difference.
Is the device beyond repair?
When I replace the 3 AAA batteries, the red LED stays permanently on. This means the device is not going into sleep mode and the batteries go flat after 2 or 3 days. Pressing the blue reset button wont make a difference.
Is the device beyond repair?
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