PRECISE COMPATIBILITY - Designed to fit seamlessly into QuadraFire models, this replacement thermocouple is compatible with several models including 800, 1000, 1100i Insert, 1200 Freestanding, and 1200i Insert. It's engineered to work effortlessly within these specific stoves. HIGH-QUALITY AFTERMARKET PART - This thermocouple maintains the same quality and performance standards as an aftermarket replacement for the 812-0210. It offers reliable and durable performance to help your stove operate smoothly. CRITICAL FUNCTIONALITY - The thermocouple plays a crucial role in your stove's operation. It monitors the fire's temperature during startup, enabling the stove to transition into normal operation mode once the desired temperature is reached. A malfunctioning thermocouple might be the cause if your stove experiences shutdowns after the initial startup. EXPERT MAINTENANCE - If your stove exhibits irregular shutdowns or operational issues after startup, inspecting or replacing the thermocouple is recommended. Note: Installation guide not included. Professional installation is strongly recommended. Please verify compatibility to ensure the item meets your requirements. Product updates may occur. Due to different production batches, the actual product may have slight variations or color differences, which do not affect functionality. Color: As shown Material: Metal Package Contents: 1 x Thermocouple Only the above package content is included; other items are not part of this package. Note: Lighting and display settings may cause slight color differences between the image and the actual item. Measurement error allowance is +/- 1-3 cm.