63mm Clip-on Pipe Thermometer Temperature Gauge With Spring 0-120 C Specification: Product Name:Clip-on Pipe Thermometer for Case Material:Aluminium Size:Out diameter:63mm height:10.2mm (1mm=0.0394inch) Range:0-120 Features: For connecting to outside of pipes Aluminium Case 0-120 with spring With Spring For Connecting To 20-50mm Ppipes 63mm diameter hot water pipe thermometer with spring for attaching to pipes (you can connect to smaller or larger pipes using a different spring or length of wire) Fitment: Suitable For Hot Water, Hvac. Heating, Oil Tanks, ETC. Note: 1.We provide clear pictures, measurements where possible. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 1-3mm difference due to manual measurement. 3.There Are No Instructions Included In This Kit.Professional Installation Is Highly Recommended Package Includes: 1x Clip-on Pipe Thermometer