DINOSAUR UNIVERSAL IGNITER BOARDS - The key features of the Dinosaur boards are: Ã¢â‚¬Â¢ FUSE PROTECTION - A replaceable fuse on the board protects the boardÃ¢â‚¬â„¢s 12V circuits from short-circuit damage. Ã¢â‚¬Â¢ DUAL SENSE - Flame sense works through high voltage connector and edge connector simultaneously. Ã¢â‚¬Â¢ EXTERNAL SENSE -Connector on the board for external sense wire. Ã¢â‚¬Â¢ DIAGNOSTIC-AID LED on board is green to show power to board, red to indicate power to gas valve. Ã¢â‚¬Â¢ VOLTAGE REGULATOR -Cleans up the 12V supply power. Available with spade (shown) or post highvoltage connector. Two sizes to choose from. Cover sold separately. Note: Do not use cover in furnaces. It will melt. Universal Igniter Board without Post, Large.