This 0-167°F Fahrenheit Digital Temperature Meter is easy to setup and read; It is design with reverse polarity protection, positive and negative reversed will not burn, but the screen is blank;
Temperature measuring range: 0-167°F Fahrenheit.; Temperature sensor using MF55 type of NTC thermistor, epoxy potting, can be used in water, NOTE: the water temperature should not exceed 167 ° F;
Operating voltage: 4.5 -28V. Wiring is simple, then the red is for positive, and black for negative