Based on this product's specifications, here are some alternatives and similar models
Sleeve / immersion sleeve Afriso 15x16 mm, length 100 mm, model 555034
Summary description:
Immersion sleeve (tuleja) Afriso model 555034, designed for insertion of sensors or probes into pipes or vessels. Dimensions are 15x16 mm with a 100 mm insertion length. Provides a sealed, stable mounting point for temperature sensors or probes, facilitating maintenance and replacement without draining the system. Suitable for HVAC, heating systems and industrial process lines.