Get a dome made for reptiles that had a ceramic or porcelain socket, do not get a one with a plastic socket bc it will melt or catch fire!
I recommend you buy a probe thermometer and 2 temp guns so you can compare all the devices bc you won't know if one is working correctly if you don't have others to compare to. The probe for the thermometer needs to be placed on the ground where the middle of the che heat will hit and make sure that spot stays around 88-90. They do sell acurite 00891 on amazon UK which has a probe for hot side then you can place the rest of the unit on cool side for cool temp and humidity as well. It was 42.12 in UK currency on amazon UK, they only cost 12 US dollars here but I will say they are very accurate and give me the same readings as my top quality thermostats. It's your choice to spend that much but I will tell you it will be more accurate then other probe thermometers you find labeled for reptiles. Actually if you think about it you will have to buy 2 thermometers for each side plus a hygrometer so maybe just buying the acurite that will give you all measurements would be worth the price.
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