The dose pen rechargeable system includes a controller and charger. dosist formula pods sold separately. All dosist formula pods work with the dose pen rechargeable system. The dose pen rechargeable system uses precise time-controlled measurements delivering 2.5mg of THC each time. The controller by dosist has a fully ceramic vaporization chamber housing a ceramic wick for faster, more efficient saturation. It features a medical-grade stainless steel vaporization coil.