Humidity & Temperature Meter AR827, it is a professional tester and with multi-function. What's more,it is easy to operate. A brand-, unused, unopened, undamaged item in its original package. Our products have been exported to more than 40 countries over the world. We believe that during the days of economic and cultural globalization, the key point for running business successfully both at home and abroad is to be creative, considerate, passionate, committed and industrious.