Specifications sensor type vanadium oxide microbolometer response band 8 14 m thermal image resolution 240x240 pixels noise equivalent temperature difference netd 60 mk 25 c f 1 0 angle of view fov 50 0 h x 50 v 72 1 d spatial resolution ifov 8 89 mrad frame rate 25hz imaging lens focal length 1 35 mm temperature measuring focal length 0 3m 3m adjustable temperature range 20 c 550 c temperature measurement accuracy 2 c or 2 of the reading whichever is larger temperature units celsius fahrenheit kelvin temperature resolution 0 1 c emissivity 0 01 1 00 adjustable temperature measurement displays center point temperature measurement high and low temperature tracking swatches white hot black hot fusion 1 rainbow fusion 2 iron red 1 iron red 2 bark brown color 1 color 2 ice fire rain green hot red hot dark blue display screen 2 4 inches tft lcd display resolution 320 x 240 keys power key up key down key return key trigger key laser pointer yes temperature alarm screen font color alarm image storage built in memory card number of image files 30000 image format bmp shock vibration gb t 2423 5 2019 gb t 2423 10 2008 electromagnetic compatibility emc gb t17799 2 gb17799 3 2012 protection level ip54 installation mode tripod mount unc 20 focus mode auto focusing hardware interface type c usb battery type rechargeable lithium battery 3 7v 2500mah battery working hours
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