Both a contact-type thermometer and an infrared thermometer, the Fluke 561 is suitable for measuring practically any temperature application ranging from hot pipes to simply testing minor surface temperatures in fridges and ducts.
The built-in infrared (IR) technology of the Fluke 561 means that temperature can be measured safely from a distance. Just line up the measurement point using the laser sight, squeeze the trigger and you'll get a reading of the surface's temperature. The 12:1 distance-to-spot ratio allows this thermometer to be used at a distance of 12 inches away from the measurement spot to create a 1 inch point of measurement.
This thermometer is capable of measuring temperature levels from -40 to 550°C (-40 to 1022°F) for use everywhere from extremely cold applications to demanding industrial areas with high temperature. An adjustable emissivity mode is also included to cater for inaccurate measurements that may be caused by shiny materials.
Alternatively the 561 can be used in combination with a type K thermocouple (one included in the standard pack) to measure surface temperatures directly with a higher degree of accuracy.
Please note: to switch between Celsius and Fahrenheit modes on this thermometer there is a switch inside the battery compartment.
Temperature Range | -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: |
Display Accuracy | ±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°/1° |
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 <1mW, wavelength 630-670 nm |
Relative Humidity | 10 % to 90 % RH non-condensing, at <30 °C (86 °F) |
Power | 2 AA batteries (alkaline or NiCD) |
Battery Life | 12 Hours |
Backlit Display | Yes, LCD with dual temperatures (current and MAX/MIN/DIF/KTC), low battery, f/C indicator and scan/hold options |
Warranty | 2 years |
Operating Temperature | 0 °C to 50 °C (32 °F to 120 °F) |
Storage Temperature | -20 °C to 65 °C (-25 °F to 150 °F) |
MAX/MIN/DIF Temperatures | Yes |
Thermocouple Type K Mini Adapter Input | Yes, compatible with industry standard K type probes with mini-connector. Displays to the thermometer temperature range. |
Thermocouple Type K Fabric Hook-and-Loop Fastener Pipe Probe | Yes, with a temperature range of 0 °C to 100 °C (32 °F to 212 °F) and accuracy of ±2.2 °C (±4 °F) |
HVAC Measurement Guide | Yes |