Description Measuring Devices -Thermometer Hot Water Pipe Clip Thermometer Stove Pipe Highlights generic brand Thermometer Hot Water Pipe Clip Thermometer Stove Pipe Diameter 63mm, aluminum case 0-120 with spring to connect to pipes within 20-50mm. 63 mm diameter thermometer with spring for fixing on pipes. (you can connect to smaller or larger pipes by using different spring or wire length) Fitting: Suitable for hot water, Hvac. Heating, oil tanks, etc. Specification: Condition: New Model Number: 550118 Housing Material: Aluminum Size: Outer Diameter: approx. 63mm / 2.48inch height: approx. 10.2mm / 0.40inch Range: 0-120 Package Includes: 1 Piece Clip-on Pipe Thermometer Note: 1. We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one you need. 2. Please allow 0.5-1 inch differs due to manual measurement. (1inch=2.54cm) 3.There are no instructions included in this kit. Professional installation is highly recommended!