OPS243-C FMCW and Doppler Radar Sensor with WiFi/Bluetooth Interface - OmniPreSense
WBM SMART WiFi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, Compatible With Alexa, App Control HD-DS-01 - The Home Depot
Wireless Temperature Sensor w/ 1m (3ft) Probe (SS3-105) - Swift Sensors
Smart WiFi Water Sensor Leak Detector – Ecoey
WiFi Temperature Humidity Sensor for use with MQTT
Amazon.com: Thermote X Wireless NIST Traceable Remote Temperature Sensor. WiFi with Text/email alerts. 24/7 Monitoring. No Subscription Fees. : Electronics