Titon PIV Loft unit with heater AX3571 but now comes with even but now comes with even more features and more model options providing flexibility when choosing the right fan probes with a sprung sensor element allow temperature measurement on uneven surfaces and temperature probes with a magnet enable measurement on metal surfaces in this area Takes advantage of the benefits of solar gain in the loft space PIV L (up to 2 floors) or PIV L3 which includes a fire diffuser and a remote control (up to 3 floors) Titon’s range of PIV units will create a healthy environment within any dwelling especially refurbished or existing properties that need to combat internal air quality issues