The first heater designed from scratch with intelligent precision controls for ideal growth conditions. Integrated controller with wired sensor VPD and temperature triggers, timers and cycles State-of-the-art PTC plate technology uses PWM control to fine-adjust the temperature. Flexible hose with an extra 4-foot connector directs heat to focused areas in your growing area. Go beyond smart on/off sockets by integrating with our UIS controllers for accurate output control from 0% to 100%.