EXTECH IR270 红外测温仪 (‐20 ~ 650*C)

Range / Resolution: Auto range ‐20 ~ 650oC (‐4 ~ 1202oF) / Resolution 0.1°
Accuracy
‐20 ~ ‐2oC (‐4 ~ 28oF): ± 4°C (8°F)
‐2 ~ 94oC (28 ~ 200oF): ± 2.5°C (4.5°F)  
94 ~ 204oC (200 ~ 400oF): ± (1.0%rdg + 1°C/2°F)  
204 ~ 426oC (400 ~ 800oF): ± (1.5%rdg + 1°C/2°F)
426 ~ 650oC (800 ~ 1202oF): ± (3%rdg + 1°C/2°F)
Note: Accuracy is specified for the following ambient temperature range: 23 ~ 25°C
(73 ~ 77°F), <80%RH
Emissivity: 0.10 ~ 1.00 adjustable
Field of View: 12:1 (approx.) Distance to Spot ratio  
Laser power: Class 2 < 1mW, 650nm ±10nm
IR Spectral response: 8 ~ 14 µm
Repeatability: ±0.5%rdg or ±1°C (1.8°F); whichever is greater
General Specifications
Display:   Backlit LCD with multifunction indicators  
Response time: 150ms
Out‐of‐range indicator: ‘HI’ for over‐range
Operating temperature:   0°C ~ 50°C (32°F ~ 122°F)
Operating relative humidity: 10 ~ 90% RH
Storage temperature:  ‐10°C ~ 60°C (14°F ~ 140°F)
Storage relative humidity: 80% RH maximum
Power supply: One 9V battery
Automatic power: OFF After approx. 7 seconds of trigger release
Weight   :     150g (5.3 oz.)
Dimensions: 180 x 107 x 40mm (7.1 x 4.2 x 1.6”)