Brand Name: MIJIA Battery Included: Yes Power Source: DC Power Source: DC Communication method: Bluetooth-Compatible High-concerned chemical: None Does It Includes Wireless Communication: No Origin: Mainland China Inbox adaptor: No Wireless Communication: Non-Remote Function Model Number: MJWSD06MMC Certification: CE Temperature measurement range: 0°C~60°C Humidity measurement range: 0~99%RH Battery Model: CR2450 Product size: 53*45.3*13MM Wireless connectivity: Bluetooth5.0 Product Net Weight: 30g Choice: yes