Lugarti's Digital Infrared Temp Gun features a 12 point laser aiming system, can easily be switched between Fahrenheit and Celsius, and has a Min/Max function that allows you to monitor fluctuations over time. It also boasts a full color LED screen! It's durable, accurate, and allows you to instantly measure all areas of a terrarium; basking spots, hides, thermal gradients, etc. FEATURES: D:S Ratio = 12:1 Range -58°F to 1022°F (-50°C to 550°C) Accuracy ±3° High/Low Limit Alarm Adjustable Emissivity (0.1 to 1.0) Automatic Power Off