The VT04 add;|Powwerful resolution with PyroBlendâ„¢ Plus optics |Field of view for tight spaces: 28° x 28° |4 times sharper images then VT02|Hi\/Lo temperature alarm †Find hot spots in seconds with the alarm feature |Time lapse image capture â€Automatically monitor equipment over time|Automated monitoring alarm †Automatically capture images after an alarm has been triggered