The Internet Reptile Thermometer/Hygrometer with Min/Max is a great measurement tool for almost all terrarium or vivarium animals.
Operating with 2 probes (one for temperature and one for humidity), you can install the digital display outside of the vivarium to easy viewing whilst the probes can be installed exactly where needed within.
Measures in celcius with a temperature range of -5 degrees C up to +50 degrees C and with a humidity range of 10% to 98%.
By pressing the min/max button you can cycle to see the maximum and minimum of BOTH the temperature and humidity since you last reset the display.
Uses 1x 5AG10 battery which is included within the box.