Handheld, non-contact thermometer for quick and accurate temperature measurement. The Fluke 561 is compatible with all standard Type-K thermocouples and includes a Velcro® Pipe Probe for contact measurements. Features: IR thermometer for quick measurements up close or at a distance, without a ladder Compatible with all standard mini-connector K-type thermocouples Velcro pipe probe for superheat, sub-cooling or other contact and ambient measurements Single-point laser sighting Temperature range optimized for HVAC/R applications Easy emissivity adjustment for measuring pipes and ducts more accurately Lightweight (only 340 grams (12 ounces)) and portable Very easy to use Efficient - no need to shut down equipment when making IR measurements MIN, MAX and DIF temperature readings help you quickly identify problems Scan large areas or small objects quickly and efficiently HVAC/R measurement guide included to maximize your productivity Specifications Temperature: -40 to 550°C (-40 to 1022°F) Display Resolution: 0.1°C (0.1°F) of reading D:S (Distance to spot size): 12:1 Easy Emissivity Selector: Adjustable with three settings: Low (0.3), Medium (0.7). High (0.95) Display Accuracy [Assumes ambient operating temperature of 23° C(73°F) to 25°C(77°F)]: ±1.0% of reading ± 1% of reading or ±1°C (±2°F), whichever is greater below 0°C/32°F, ±1°C (±2°F) ± 0.1°C/1°F Response Time: 500 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: Single point laser Laser Shutoff: Laser turns off above ambient temperature of 40°C (104°F) Laser Power: Class 2(II) operation; Output nm Relative Humidity: 10% to 90% RH non-condensing, at (86°F) Power: 2 AA batteries (alkaline or NiCD) Battery Life: 12 hours Display Hold: 7 seconds Backl