Insten White Digital LCD Indoor Outdoor Thermometer Hygrometer Temperature Humidity Meter
I ordered this to replace one like it (same item, different brand name) which was no longer useful. Order was shipped right away and delivered promptly. Item worked great except that the temperature displayed was in Celcius. A switch in the back was to change the readings to Fahrenheit, but there was no switch, just an empty slot where the switch was supposed to be. I immediately placed a call to the vendor and left a message. Then I read previous reviews for this vendor and there were hundreds complaining of 'no response' to similar complaints. I realized that i now had junk, since temps in Celsius were of no use to me. I took the back off and somehow got it to switch to Fahrenheit, so I can use it, but Walmart should not be doing business with this vendor.