ORIA Refrigerator Thermometer, Wireless Digital Freezer Thermometer with 2 Wireless Sensors, Audible Alarm, Min and Max Record, LCD Display for Home, Restaurants, Bars, Cafes (Battery not Included) : Amazon.com.au: Kitchen & Dining
New Version) AMIR Refrigerator Thermometer, Wireless Indoor Outdoor Thermometer, Sensor Temperature Monitor with Audible Alarm Temperature Gauge for Freezer Kitchen Home (Battery not Included) : Amazon.com.au: Kitchen & Dining
AcuRite Digital Wireless Fridge and Freezer Thermometer with Alarm, Max/Min Temperature for Home and Restaurants (00515M) 4.25" x 3.75" : Amazon.com.au: Kitchen & Dining