Measuring range

Infrared: -76 ... 932°F / -60 ... 500°C 

Type K thermocouple: -83 ... 2552°F / -64... 1400°C 

Air temperature: -4 ... 149°F / -20 ... 65°C 

Wet bulb temperature: -4 ... 149°F / -20 ... 65°C 

Dew point: -58 ... 122°F / -50 ... 50°C 

Humidity: 1... 99% rh  

Accuracy
(at 68... 78°F / 20... 26°C ambient temperature)

Infrared 
59... 95°F / 15... 35°C: ± 1.0°C / 1.8°F

-22 ... 932°F / -33... 500°C: ± 2% of rdg. or ± 2°C / 3.6°F

Thermocouple type K
± 1% of rdg. or ± 1.0°C / 1.8°F

Air temperature: ± 2.5°C / 4.5°F

Wet bulb temperature: ± 2.5°C / 4.5°F 

Dew point
20... 30% RH: ± 2.5°C / 4.5°F 

31... 40% RH: ± 2.0°C / 3.6°F

41... 95% RH: 1.5°C / 2.7°F

Air humidity: 
20... 80%: ± 3%
Balance: ± 5%

Resolution

0.1°C / 0.18°F

1.0°C / 1.8°F 

Emissivity

0.1 ... 1 

Response time

1 second

Optical resolution

12: 1

Power supply

2 x 1.5V AA battery

Battery life
(without laser & display lighting)

Approx. 180 minutes
Approx. 140 minutes (continuous operation)

Weight

< 1 lb / 240 g

Dimensions

1.8 x 5.6 x 7.3 in / 46 x 143 x 184.8 mm