KM-G017 – Flame Failure Sensor 1 Kit (For LPG/NG) KM-G017 - Flame Failure Sensor 1 Kit (For LPG/NG) Flame Failure Sensor 1 Kit (For LPG/NG) Available in 3 sizes (Measured tip to end) Size 1 : 220mm Size 2: 600mm Size 3: 1000 mm