Here is another smart gadget that lets you monitor temperature and humidity level in your home remotely. The Temp Stick sends you text and e-mail alerts from your mobile device. It is battery operated, so you can use it anywhere. Data logging with unlimited history is also available.
The Temp Stick can be used in the fridge or anywhere in your home to monitor the environment. You can check the data on your mobile device or computer. Costs under $150 at this time.