Extra large handle for simple operation. High impact plastic construction. Fast, accurate and easy to use. Classic twirling design. Choose from mercury or red spirit filled thermometers. C range: 0 to 50 C. Accuracy for mercury: plus/minus 0.5 F (plus/minus 0.3 C). Dimensions: 8.5 x 1.75 x 1 in. Weight: 7.05 oz. Replacement therms: RTSP - (2) replacements C. Includes: 2 Thermometers, One Wick.