What it does and why you need it Thermocouple sensor designed for propane gas appliances — provides reliable pilot sensing and temperature feedback so your fireplace, water heater or deep fryer maintains safe, consistent operation. High sensitivity and durable construction deliver fast response and long service life, reducing false shutoffs and maintenance needs. Key benefits Compatibility: Built specifically for propane gas appliances and typically installed with a pilot light for accurate flame detection. Reliable performance: High sensitivity picks up small temperature changes quickly so control systems respond correctly. Durability: Robust body construction stands up to the heat and environment of gas appliance applications. Clear electrical spec: Minimum voltage 750 mV — voltage output increases progressively as temperature rises (see temperature limits below). Important specifications Suitable appliance types: propane fireplaces, water heaters, deep fryers (installed with pilot). Minimum voltage: 750 mV. Heating/voltage behavior: voltage increases step by step with temperature (original spec references heating behavior around 700°C). Measuring ranges: Type K: 0 to 600°C Type E: 0 to 400°C Practical use scenarios Fireplace pilot monitoring: Use the thermocouple to detect pilot flame presence and enable safe ignition and shutoff logic. Water heater safety control: Monitor pilot and burner conditions to prevent gas flow when the pilot is out. Commercial deep fryer pilot detection: Maintain stable burner operation and avoid downtime from false flame loss detection. Notes for installers and buyers Confirm you select the appropriate thermocouple type (K or E) for the required temperature range and control system. The unit is intended for installations with a pilot configuration on propane gas appliances. Observe the specified minimum voltage and temperature behavior when testing or commissioning to ensure correct operation. Durable, sensitive, and built for propane appliance pilot applications — this thermocouple provides dependable flame sensing within the stated temperature and voltage specifications.