Based on this product's specifications, here are some alternatives and similar models
Thermo-hygro sensor Renkforce RF-E0666-BK — wireless 433 MHz temperature and humidity sensor
Summary description:
Renkforce RF-E0666-BK is a wireless thermo-hygro sensor operating at 433 MHz that measures temperature and relative humidity. Designed as an accessory for compatible monitoring and weather stations, it transmits environmental data wirelessly to a receiver. Use it to monitor indoor climate, storage conditions or hobby spaces and receive remote readings for better climate control and prevention of moisture-related issues.