Measuring and Layout — FAQ
Why didn't you include actual Mitutoyo infrared thermometers?
Our Amazon search for 'best mitutoyo infrared thermometer' returned these high-quality alternatives. Mitutoyo primarily focuses on contact measurement tools; their IR offerings are specialized industrial units rarely sold through standard Amazon channels.
What is emissivity and why does it matter?
Emissivity measures how efficiently a surface emits infrared energy (0.1-1.0). Shiny metals emit poorly (0.1-0.3), while organic materials emit well (0.9-0.95). Adjustable emissivity ensures accurate readings across different materials.
Can I use these infrared thermometers on humans?
No. These are industrial tools not FDA-approved for medical use. Their accuracy and calculation methods differ from clinical forehead thermometers. Using them on humans produces unreliable and potentially dangerous readings.
What distance-to-spot ratio do I need?
12:1 suffices for most cooking and home HVAC work (measure 2-inch spot from 2 feet). Industrial users need 30:1 or 50:1 for safe distance from hot or hazardous targets. Higher ratios cost more but provide flexibility.
How often should I calibrate my IR thermometer?
Professional users should verify accuracy annually against known references. If dropped or exposed to extreme temperatures, check calibration immediately. Budget units may drift more quickly; test monthly if precision is critical.
Are these alternatives as good as Mitutoyo?
For most applications, yes. Klein Tools matches Mitutoyo's build quality. MESTEK exceeds their temperature range. However, Mitutoyo's calibration certificates and metrology-grade accuracy remain unmatched for scientific measurement.
