Most likely reason is the batteries need changing. I believe this init uses 2 AA batteries. When you remove them, wait 1 minute befor inserting the new ones.
The restriction of leaving the unit in sunlight is, the heat of tbe sun may cause the unit to give an inaccurate reading. Will not harm the unit however.
Answers & Comments
Most likely reason is the batteries need changing. I believe this init uses 2 AA batteries. When you remove them, wait 1 minute befor inserting the new ones.
The restriction of leaving the unit in sunlight is, the heat of tbe sun may cause the unit to give an inaccurate reading. Will not harm the unit however.