Temperature Range: -35 to 500ºC(-31 to 932ºF) Accuracy: ±3.0ºC(±5.4ºF) from -35~-20ºC(-31~-4ºF), ±2.0ºC(±3.6ºF) from -20~0ºC(-4~32ºF), ±1.5ºC(±2.7ºF) from 0~60ºC(32~140ºF), ±2.0ºC(±3.6ºF) from 60~100ºC(140~212ºF), ±2% from 100~500ºC(212~932ºF) Distance/Spot Ratio: 10:1 Resolution: 0.1ºC / 0.1ºF Response Time: 500ms Emissivity: 0.95 fixed Auto Power Off: 6 sec. C/F Switchable Backlight Laser Sight Switchable 9V battery