An economical and accurate way to measure air or water temperatures. Separable thermowell. Dual scale. 1/2" NPT process connection. 5 Year warranty. Vertical scale type. Applications: hot water lines, boilers and hydronic heating. Scale/Case: 8" (200mm) scale with steel case, painted white with black markings. Tube: #N-16 glass. Sensing liquid: organic fluid. Thermowell: brass (HPB59-1), 1/2" NPT standard, separable. +/-1 percent accuracy. Temperature range: 40 to 280 degree F and 5 to 135 degree C. Connection: Angle.