Measurement method: non-contact
 

 Effective distance: 30mm-50mm
 

 Measurement range (human body): 32-42.9 ℃ (89.6 ℉ - 109.2 ℃)
 

 Measurement range (object surface): 0-100 ℃ (32 ℉ - 212 ℉)
 

 Body temperature accuracy < = 35 ℃ or > = 42 ℃: + / - 0.3 ℃ / 0.54 ℃
 

 Temperature accuracy between 35 ° C and 42 ° C: + / - 0.2 ° C / 0.4 ° f
 

 Object surface accuracy: + / - 1 ℃ / 1.8 ℉
 

 Working conditions: 16-35 ℃ (60-95 ℉), humidity ≤ 85%
 

 Memory: 32 storage registers; a set of read recovery
 

 Storage conditions: - 20 ℃ ~ 55 ℃, humidity ≤ 85%
 

 Automatic shutdown: within 20s if there is no operation
 

 Battery: dc3v 2 unit AAA dc3v (not included)