The Universal Glow Plug Timer is a reliable engine component designed to optimize the heating cycle of glow plugs in diesel engines, ensuring smooth cold starts and minimizing wear. It features a simple installation process, including clear wiring instructions for ignition, relay, start signal, warning light, ground, and optional temperature sensor connections. The timer supports operation with or without a temperature sensor, activating glow plugs as needed based on coolant temperature when a sensor is connected. Key Features Output for pre-glow and after-glow phases, automatically powering the glow plug relay and warning light for preset durations. Compatible with most diesel vehicles and machinery, with clear wire color coding to simplify installation. Supports optional temperature sensor to control glow plug activation, reducing unnecessary wear and improving efficiency; recommended sensor: Tridon TCS040 or equivalent. Signal output timer design; positive output for relay and negative for warning light, confirming proper function easily. Durable and compact, securely mounts in protected engine bay locations for long-lasting operation. Comes with detailed instructions. Applications Ideal for automotive, agricultural, and industrial diesel engines requiring reliable glow plug management and easy retrofitting with enhanced cold-start capability. Optimal for vehicles operating in variable or cold environments, allowing for efficient and dependable startups. Recommend installation to be carried out by Qualified Automotive Electrician.