Dwyer BTLRH348101 Bimetal Thermometer is perfect for monitoring temperature in various applications. With a temperature range of Head: 200°F (93°C) and Stem: Not to exceed 50% over-range or 1000°F (538°C) or 800°F (427°C) continuously, it ensures accurate readings with ±1% FS accuracy and a response time of ≤40 s. Its wetted material is made from 304 SS, process connections vary from 1/4" NPT to 1/2" NPT, and it features a Series 300 SS body with a glass lens. The immersion depth is at least 2" in liquids and 4" in gas, while the stem diameter is 1/4" O.D.