Battery included】 you can use directly when received. temperature range: -50°c to +300°c or -58°f to +572°f resolution: 0.1°c or 0.1°f accuracy: ± 1°c or ± 1 °f optional temprature unit: °c / °f material: 304 stainless steel & abs plastic buttons: on/off, °c/°f, hold power supply: 1 x 1.5v lr44/ag13 battery (included) power saving: auto power off after 15 minutes data hold function display size:20cm*35cm / 7.87" *13.78" (approx.) total length: 24.5cm/ 9.64" (approx.) probe length: 14.5cm/ 5.7" (approx.)