Press the "℃/℉" key to switch between Fahrenheit or Celsius. High temperature alarm (the temperature exceeds the preset value will sound an audible alarm) and low temperature alarm (the temperature is below the preset value will sound an audible alarm).
eBay
Multifunction Thermometer Backlit Display Forehead Thermometer Digital Display Infrared Alarm Human Body Thermometer/oximeter
Aliexpress UK
With a temperature trend indicator arrow and daily high and low information. The display console displays temperature, minimum and maximum temperature, which can be reset manually. Avoid transmitter directly in the rain.
eBay
Infrared Alarm Human Body Thermometer Multifunction Thermometer Three-color Backlit Display Forehead Thermometer Digital Display
Aliexpress UK
Alarm function: when the temperature exceeds the set temperature value, the buzzer will sound an alarm. Wide range of applications: suitable for household refrigerators, supermarket freezers and other fields.
eBay
Thermometer Three-color Backlit Display Forehead Thermometer Digital Display Infrared Alarm Human Body Thermometer
Aliexpress UK
The display console displays temperature,minimum and maximum temperature, which can be reset manually. With a temperature trend indicator arrow and daily high and low information. The sensor search mode allows you to re-sync sensors without removing and re-inserting batteries.
eBay
Multifunction Thermometer Three-color Backlit Display Forehead Thermometer Digital Display Infrared Alarm Human Body Thermometer
Aliexpress UK
Ideally suited to read the temperature in a fridge, freezer or outdoor temperature and room temperature simultaneously. Main body includes magnet, clip and stand. Maximum and minimum recording facility.
eBay
Digital LCD Alarm Clock with Calendar Thermometer alarm clock alarm clock digital desk clock
Aliexpress UK
A warning alarm can be set to alert for any major temperature fluctuations. Maximum and minimum temperatures can be recorded for monitoring deviation in temperature. 1 x AAA battery is also supplied with this product.
eBay
9 Seconds Digital Basal Thermometer for Adults and Kids - Accurate Oral Thermometer with Fever Alarm for Baby with Large Display
Aliexpress UK
The display console displays temperature,minimum and maximum temperature, which can be reset manually. Easy to read LCD screen displays the current indoor outdoor temperature.When insufficient electricity,there are will be shown on the LCD screen.
eBay
Silicone 9 Seconds Digital Basal Thermometer for Adults Kids - Accurate Oral Thermometer with Fever Alarm for Baby Large Display
Aliexpress UK
[Widely Applicable]Perfect for your refrigerator or freezer, won't take too many places. [Temperature Alarm]The alarm feature provides an alert when the temperature rises above or falls below a set point.
eBay
328ft Wireless Meat Thermometer for Grilling Smoker BBQ Oven Digital Food Kitchen Thermometer with 4 Probes Timer Alarm Gift New
Aliexpress UK