We are offering big display thermo, hygrometer.environment comfort display : “comfort”, “wet”, “dry”. temperature range : 0oc~+50oc (+32o~120of). temp. Accuracy : +1.0oc (+1.8of). temperature resolving power : 0.1oc (0.1of). humidity range : 30% ~ 90% rh. Humidity accuracy : +5% rh. battery : aaa 1.5v. Time / temp / humidity indicate. temp. Reading for of & oc. Max and min temperature and humidity memory. Calendar alarm clock, announce hour and 12/24 hours system clock.