Review on 🌡️ Qooltek Digital LCD Thermometer Gauge with Probe for Vehicle Reptile Terrarium Fish Tank Refrigerator - Fahrenheit Aquarium Temperature Sensor by Gina Clark

3 guesses where the sensor probe is. Mom always told me to let it sit for at least 3 minutes, which I did. Then I let it sit for a while longer to see if it changed. It didn't happen and has stabilized at that number. It's pretty much right in my book. It looks like the sensor is updating about every 30 seconds and as the sensor changes temperature the temperature will increase until it reaches equilibrium. This is not an immediate measure. It really took a few minutes to really rise to my body temperature. I was tempted to deduct a star due to the lack of an on/off switch. You have to remove the batteries (easy to do). But this pinpoint accuracy deserves credit.