Fluker's All New Digital Display Thermo-hygrometer

I like the digital readout but this particular device is expensive compared to others of the same quality.

Pros: easy digital readout

Cons: very expensive

we've used this product in many ways. when we weren't using it to monitor cage temps, we put it in our refrigerator, which wasn't working too well (its coldest setting brought the temp down to a whopping 54F and we ended up getting the landlord to buy a new refrigerator), to monitor the accuracy of our thermostat and to document the temperature differences in the different rooms of our apartment.

Pros: very accurate and portable

Cons: hard to read at night