Beta 1760/IR1000 Manual Instrucciones De Uso página 29

Operating temperature
Storage temperature
Relative humidity
Power supply
Safety
Note:
Field of View: Make sure that the target is larger than the unit's spotsize.
The smaller the target, the closer you should be to it. When accuracy is
critical,
make sure the targetis at least twice as large as the spotsize.
Da 0 to 50°C (da 32 to 122°F)
Da -10 to 60°C (da 14 to 140°F)
10% to 90% operating, <80% storage
1,5 V 2 * battery AAA
"CE" Conforme a EMC