Product Parameters Thermometer design wireless hours yes, quartz 12/24 time format yes no time zones date yes alarm clock yes Re-wake Yes internal temperature 0 ° C to + 50 ° C, resolution 0.1 ° C calendar not no stop function indoor humidity 20% to 90% RV, resolution 1% outdoor temperature not outdoor humidity not min. and max. temperature temperature alert no temperature trend no trend of pressure no temperature index not permanent backlighting not magnet for fastening no countdown time max memory of last value not wire probe to sensor no range in free space no no other sensor possible transmission frequency not LED backlight of the display yes color display (black mask) backlit not station power 1 × 1.5 V AA (not included) AC adapter not No sensor power supply possibility to set temperature unit ° C/° F size of the main unit 37 × 93 × 93 mm display size 60 × 65 mm no hanging on the wall sensor size not sales package 1 pc, box