Temperature probe / Dildo - We made this our self using a lathe, if you dont have access to a lathe then you will have to Google for metal dildo / butt plug making sure it has a hole for the temperature sensor or you will have to drill a 2 inch long hole yourself for the sensor, and yes it has to be metal to conduct body heat to the sensor. The other things you will need are the controller and sensor, we used a Carel IR32 controller and sensor from Tempatron. Many girls have had to insert the probe to escape, some sometimes in their pussy or as Tracey Lain below in her arse.