4 sets of fuse for protection overload and short circuit.
Two sets of temperature control: Every set can runseparated temperature adjustment control and time adjustment control.
Source tracking: Every roll bar is laser engraved date of manufacture.
Heater is coated polar sheet of special material, it can prevent short circuit burning due to potion penetration.
Korean roll bar uses top material of waterproof and explosion-proof from DuPont, the heating area is average for whole roll bar, heat up and warm up is rapid.