Review on Extech TP890 Thermistor Hygro Thermometer Psychrometer by Jason Wesley

I've been using this sensor for 3 years and it works well. This probe is useful for measuring the temperature of liquid, soft and bulk materials. It is pointless to measure the surface temperature since only the tip comes into contact with it. However, I was able to measure the temperatures of the surfaces by slightly tilting the tip to have more contact. I use it with my General Tools EP8706 Psychrometer.