Linear Surge Protector | LIN-2500-2207 The Linear Surge Protector offers peace of mind against unpredictable power surges, ensuring your devices remain safe and operational. Protect your investments with confidence. Features Protects from proximal lightning damage and transient voltage on the control inputs. Protects up to six control inputs. Absorbs several surges and keeps working! Diagnostic LEDs on the mainboard will show if the protector is damaged. Extends control board warranty to cover lightning damage to the low voltage circuit when the surge protection module is ordered with the operator and factory-installed. This module can be easily fitted to existing operators in the field. Note This module does not protect the boards from surges on incoming high voltage. This must be addressed separately for optimum protection.