Quick measurement of surface temperature without touching Reads Celsius or Fahrenheit Laser pointer for accurate placement (2) AAA batteries included 1 .WarningTo avoid the potential situation may cause harm or damage to people, please pay attention to the following items: 1) Before you use this unit, check on the plastic housing carefully, lf there is any damage, do not use it. 2) Do not point laser directly at eye or indirectly off reflective surfaces.3) Do not use this unit in the environment of explosive gas, steam or dusty. 2 . CautionTo avoid the damage of the unit or the target, please protect from the followingsituations: 1) EMF(electro-magnetic fields) from arc welders, induction heaters. 2) Thermal shock(caused by large or abrupt ambient temperature change) allows 30 minutes for unit to stabilize before use. 3) Do not leave the unit on or near objects with high temperature.WARNING: This product can expose you to chemicalsincluding Lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.