KM-020 – Flame Failure Sensor 2 Kit (For LPG/NG) KM-020 - Flame Failure Sensor 2 Kit (For LPG/NG) Flame Failure Sensor 2 Kit (For LPG/NG) Includes: - Mounting Bracket - Screw - Securing post Available in 3 sizes (Measured tip to end) Size 1 : 220mm Size 2: 600mm Size 3: 1000 mm