Troubleshooting
Your HM-1 is designed to bring you years of fascinating data. However, as with any technical product, things can and do go wrong. Here are some common ...
Wed, 9 Aug, 2023 at 2:44 PM
The HM-1 take a Panasonic CR2477 3V lithium coin cell battery. This is a high-capacity battery and is rather widely available. You may google "CR2477...
Sat, 22 Jun, 2019 at 2:20 AM