Temperature: -22°F to 1022°F (-30°C to 550°C) D:S=12:1 color display screen; response time<0.5 sec Ray: <1 mW (630 nm – 650 nm) Twelve points Turn off automatically rear light Temperature range: -10°C to 60°C (14°F to 140°F) Alarm for upper/lower temperature limits (Red) Not intended for humans enclosed in a colored box