Previous Product Next Product SEC-AMB-31 Main board for ASD 531 Please login to see your pricing Login SKU: SEC-AMB-31 Category: Spares Description Repair exchange for the ASD 531. Brochure Technical Brochure Related products Quick View Quick View SparesSEC-AFS-32 Read moreAir flow sensor for ASD 531/532 Quick View Quick View SparesSEC-AFU-32 Read moreAspirating fan unit for ASD 531/532 Quick View Quick View SparesSEC-RSL-35 Read moreRotary Snap Lock for ASD 535 (Set 4pcs) Quick View Quick View SparesSEC-AMB-35-2 Read moreMain board for ASD 535-2 and -4