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K2
Model Number  

K2

Temperature Range –20°C to +150°C (–4°F to +302°F) 
0°C to +500°C (+32°F to +932°F)
IR resolution 160 × 120 pixels
Sensitivity < 100 mK @ +30°C (+86°F)
Display 3 in. LCD, 320 × 240 pixels, backlit
Frame Rate NA
Accuracy ±4°C (±7.2°F) or ±4% of reading, for ambient temperature 10°C to 35°C (+50°F to 95°F)
Field of view (FOV) 47° × 35°

K33 & K55
Model Number  

K33

K53

Temperature Range –20°C to 150°C (-4°F to 302°F)
0°C to 650°C (32°F to 1202°F)
–20°C to 150°C (-4°F to 302°F)
0°C to 650°C (32°F to 1202°F)
IR resolution 240 x 180 pixels 320 × 240 pixels
Sensitivity < 40 mK @ 30°C (86°F) < 30 mK @ 30°C (86°F)
Display 4” LCD, 320 × 240 pixels, backlit 4” LCD, 320 × 240 pixels, backlit
Frame Rate NA NA
Accuracy ±4°C or ±4% of reading for ambient temperature
10°C to 35°C (50°F to 95°F)
±4°C or ±4% of reading for ambient temperature
10°C to 35°C (50°F to 95°F)
Field of view (FOV) 51° × 38° 51° × 38°

K45 & K55
Model Number  

K45

K55

Temperature Range –20°C to +85°C (–4°F to +185°F) / +150°C (+302°F): 15 min / +260°C (+500°F): 5 min –20°C to +85°C (–4°F to +185°F) / +150°C (+302°F): 15 min / +260°C (+500°F): 5 min
IR resolution 240 x 180 pixels 320 × 240 pixels
Sensitivity < 40 mK @ +30°C (+86°F) < 30 mK @ +30°C (+86°F)
Display 4” LCD, 320 × 240 pixels, backlit 4” LCD, 320 × 240 pixels, backlit
Frame Rate NA NA
Accuracy ±4°C or ±4% of reading for ambient temperature, 10°C to 35°C / 50 °F to 95 °F ±4°C or ±4% of reading for ambient temperature, 10°C to 35°C / 50 °F to 95 °F
Field of view (FOV) 51° × 38° / fixed focus 51° × 38° / fixed focus

K65 & KF6
Model Number  

K65

KF6

Temperature Range –20°C to +85°C (–4°F to +185°F) / +150°C (+302°F): 15 min / +260°C (+500°F): 5 min High-gain range: –25 to +150°C (–13 to +302°F)
Low-gain range: 0 to +550°C (+32 to +1022°F)
IR resolution 320 × 240 pixels 640 × 480
Sensitivity < 30 mK @ +30°C (+86°F) < 100 mK at f/1.4
Display 4” LCD, 320 × 240 pixels, backlit NA
Frame Rate NA NA
Accuracy ±4°C or ±4% of reading for ambient temperature, 10°C to 35°C / 50 °F to 95 °F ±10°C (±18°F) or ±10% in high gain range
Field of view (FOV) 51° × 38° / fixed focus 69° × 56°