Best Wifi Freezer Alarm

X-Sense Smart WiFi Hygrometer Thermometer, Wireless Temperature Monitor Humidity Sensor with Notification Alert, Free Data Storage Export, Compatible with Alexa, for Greenhouse, Home, Office

WiFi Temperature Sensor Smart Thermometer: Digital Temperature Monitor Gauge with Waterproof External Probe, App Alert & Buzzer Alarm, Rechargeable Battery, for Freezer, Refrigerator, Fish Tank

FRIDGGI - Mini Freezer Door Alarm with 60 Second Delay, 2, 3, and 4 Minute Reminders, Refrigerator and Fridge Door Alarm or Chime, Low/Loud 80 to 110 dB, Door Ajar Warning. (White)

MOCREO ST5 WiFi Freezer Thermometer Alarm, Email Alert, App Notification, Data Logging Export, No Subscription Fee, Remote Temperature Sensor for Refrigerator, Freezer, Hot Tub (2 Pack)

Ubibot WS1 WiFi Temperature Sensor, Wireless Thermometer Hygrometer, Humidity Monitor, Remote Data Logger with Free App Email Alerts, IFTTT Thermometer,(2.4GHz WiFi only,no hub required)

2Pcs Freezer Door Alarm, Safety Window Alarm, 3/15/30/60 Seconds Adjustable Delay Wireless Fridge Alarm, 4-In-1 Door Sensor Chime Door Open Alarm Loud 108dB

MOCREO WiFi Freezer Thermometer Alarm with Digital Monitor Hub, App and Email Alerts, 2-Year Data Export, Remote Temperature Sensor for Refrigerator, Fridge, Freezer (2 Pack)

MarCELL PRO Cellular Enabled Freezer Monitor for Temperature and Power Outage Alerts to Your Phone No WIFI Needed