Works great. I like the ability to erase and record highs and lows depending on the day. The backlight is dim, but assumes you are in a dark room. If the room is so bright that you can't see the device, you don't need a backlight. Compared to the lab quality thermometer I have, it measures the temperature accurately. It records the temperature in tenths of a degree. There is a big difference between 70.0 degrees and 70.9 degrees. If it didn't register tenths, you'd think it wasn't working. This is a good unit. Put in good quality batteries and I reckon you will be able to surf MANY months without even thinking about battery life. For the price I have no idea how they do it. This is a real goalkeeper.
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