Normal body temperature varies between 97.7degreeF and 99.5degreeF, or 36.5degreeC and 37.5degreeC. This value is called normothermia and may vary by about 0.9degreeF (0.5degreeC) during the day. While minor changes in body temperature are normal, it is important to check your temperature especially if you are feeling low or feeling sick. An accurate thermometer helps you to identify irregularity in body temperature and see what are often the first signals of something that needs attention: Particularly in young children who cannot explain their symptoms, monitoring temperature is essential. , Trister offers a range of non-contact & digital thermometers with added features like surface temperature reading and memory function to suit your needs. , TRISTER DUAL MODE FOREHEAD & INFRARED THERMOMETER: TS-236TFO , Type: Non-contact thermometer with forehead/object mode , Measurement Range: , , -Body mode; 32.0degreec to 42.9degreec (89.6degreeF TO 109.22degreeF) , -Object mode: 0-100.0degreec (32-212.0degreeF) , -Temperature Units: degreeC/degreeF, switchable , -Auto-Off: 30 seconds , -Memory Storage: 25 reading recall memory , -Battery: 2 x 15 v AAA , -Pack Content: Thermometer , -2 x AAA Batteries , -Instruction Manual , -Warranty: 2 Years