For 12V car use,CE ROHS have Multifunctional 5in1 Car Thermometer and Hygrometer and Clock and Calendar and Weather FUNCTION. 2000 ... Calendar(Year,month,date,hour,minuite & week). 12H/24H Transition. Thermometer:°C/°F display. Temperature measure range : Indoor : -10~60° ... the english manual inside the products. Multifunctional 5in1 Car Thermometer and Hygrometer and Clock and Calendar and Weather