Technical Specifications Temperature range -30 to 900°C (-25 to 1600 °F) Display Resolution 0.1°C of reading up to 900°C 0.2°F of reading up to 999.8°F D:S (Distance to spot size) 60:1 Standard focus 50:1 Close focus Minimum measurement diameter 19mm (0.76 in) Standard focus 6mm (0.24 in) Close focus Laser sighting Three point coaxial laser Emissivity Digitally adjustable from 0.10 to 1.0 by 0.01 Display Accuracy [Assumes ambient operating temperature of 23°C(73°F) to 25°C(77°F)] ±0.75% of reading ±1% of reading or ±0.75°C (±1.5°F), whichever is greater Response time 250 mSec (95% of reading) Repeatability ±0.5% of reading or ±1°C (±2°F), whichever is greater Spectral response 8 µm to 14 µm Laser Sighting Laser turns off above ambient temperature of 40°C (104°F) Laser Power Class 2(II) operation; Output <1mW, wavelength 630-670 nm Relative humidity 10% to 90% RH non-condensing, at <30°C (86°F) Tripod mount ¼ in. 20 UNC threading Power 2 AA batteries Battery life (alkaline) 13 hours with laser and backlight on 50% Display hold 7 seconds LCD backlit Yes Warranty 2 years Operating temperature 0°C to 50°C 32°F to 120°F Storage temperature -20°C to 50°C -25°F to 120°F MAX, MIN temperatures Yes DIF, AVG temperatures No Audible and visible alarms High Bar graph display Yes Up to 100 points data logging No Data graphing and storage software (Windows compatible) No