Specifications: Measurement Range: -60 º C ~ .... of reading or  ± 2 º C (  ± 4 º F) whichever is greater Emissivity: adjustable 0.10 ~ 1.00 Response Time: 1 second Spectral Response: 8 ~ 14 µ ....
QUICK AND ACCURATE RESPONSE DISTANCE: SPOT RATIO .... < 2% or 2oC( -20~ 200oC< 3% or 3oC) whichever is greater.( 8871) Storage ambient: -20~ 50oC( Humidity < 90% ) Operating ambient: 0~ ....