Thread-Mounted Digital Thermometer, -58 Degrees to 302 Degrees F/-50 Degrees to 150 Degrees C, Stem Length 15 in, 1/2 in NPT, Adjustable-Angle, Includes NIST-Traceable Certificate No, 3 in dia Display with 3 1/2-Digit LCD – 1/2 in Digit Height, 300 Stainless Steel Housing with Acrylic Lens and Stainless Steel Stem, 3V Solar Cell (Minimum 35 lux), Digital, Solar-Powered Digital Thermometer