When I was writing my response, I went to go put it on my scale so I could include the weight of it in my post but I couldn’t find it. I contacted my son and he thinks it’s in his backpack. It looks similar to this unit, but white. Goabroa Mini Hygrometer Thermometer Digital Indoor Humidity Gauge Monitor with Temperature Meter Sensor Fahrenheit (℉) https://www.amazon.com/dp/B07QC7JRDP/ref=cm_sw_r_cp_api_i_zBbvFbR4KYM7C