Product Description Item Number | 17124975-KDid your LEL sensor fail or will not calibrate? Repair your Industrial Scientific MX6 iBrid Series Multi-Gas monitor with a new genuine Industrial Scientific replacement (LEL) Combustible Sensor. Range: 0-100% LEL Resolution: 1% Need some DIY help changing a sensor or just some friendly technical help with repairing your instrument? Call customer service @ 1-800-949-7233. You can purchase your LEL Combustible sensor with confidence. Durawear offers quick shipping and free technical support!