Stainless steel.Fastening with screws and double-sided Velcro. Model TB-209.TU 4321-025-31880001-2006Designed for measuring air temperature.The measurement range is from + 50 to 50 degrees Celsius.The price of division is 1 degree.The measurement accuracy is + - 1 degree.Composition: high-and low-pressure polypropylene, neutral glass.Product weight: 105 gr.Overall size: height 230 mm, diameter 22mm.Thermometric liquid methylcarbitol.Color: silver