Review on IDOIT Forehead Thermometer Adults, Digital Infrared Thermometer with Fever Alarm and Memory Function, Instant Accurate Reading, Non-Contact Thermometers for Baby Kids Adults by Ethan Dualimace

I have had a thermometer for 5 months now. I used it a couple of times in the beginning before we got vaccinated and it seemed to work well, but then I haven't used it for the past few months. I sleep so much because I have a fever but it doesn't show anymore! I even changed the batteries and the display shows them as "Full". I've changed them before and after, but when I hold the thermometer to my forehead and pull the 'trigger', it beeps a few times, turns red and reads 'Lo'. Totally useless if you can't count on it when you need it! And unfortunately I don't have another thermometer, so I relied on that.