The parent unit detects temperature and humidity and notifies you of heat stroke warning and dry alert. *1 The parent unit features a temperature and humidity alarm to alert you to heat stroke and dryness alerts (warning) with voice (*2) and incoming call notifications (red color) and when heat stroke alert is detected, it can be set up and notifies you to your cell phone in advance. Depending on the environment of use, the temperature may vary It may not detect humidity properly. Use it for everyday use. Large letters, easy to read and choose the standby screen (parent interval) The characters on the parent screen are larger for easy viewing. The standby screen is now available in 4 different types of display options (time, date, temperature, humidity), and humidity. and municipalities. The annoying block service automatically refuses incoming calls that match the collected phone number data, and the "annoying prevention *7" function that warns the opponent before the incoming ring is sounded, and the "annoying call consultation *8" device allows you to play and hear recorded calls while talking with a third party.