Features: Pressure rating 0-10 bar. Temperature rating 0-120C. Available in standard sizes: 1/8-inch, 1/4-inch. Suitable for floor heating systems. During installation, do not use hands to move the header or straight-line wiring. Avoid pulling by hand or rotating the header manually, as uneven force may cause deformation of the pressure gauge structure, damage internal components, or harm the sealing ring. Use an external wrench for secure installation. Specifications: Material: Plastic Thread size: 1/8-inch, 1/4-inch (optional) External thread diameter: 9.50.2mm Internal thread diameter: 8.80.2mm Pressure range: 0-10 bar Temperature range: 0-120C Installation guide for home water distributor: 1. Locate the mounting hole on the water distributor and measure the internal thread size using calipers. 2. Confirm compatibility for thermometer installation, then use a wrench to securely tighten the thermometer. Monitor pressure and temperature readings accordingly. Note: Please allow 1-3 cm error due to manual measurement. Ensure you are comfortable with this variance before purchasing. Due to differences in monitor displays, the image may not accurately reflect the actual color of the item. Package includes: 1 x Temperature Pressure Gauge