Home / SECURITY & CCTV / Home Security / ALARM DOOR & WINDOW CONTACTS Product Description 12V OVER DOOR BELL or CHIME CONTACT SWITCH 12 VOLT (NORMALLY OPEN) N/O OVER DOOR CONTACT FOR SHOP DOORS OR SECURITY SYSTEMS MAKES CONTACT WHEN THE DOOR OPENS OR CLOSES MAX VOLTAGE: 12V LENGTH: 80MM GAVSHOP CODE: DC12O/C Specifications Product Code EBE01-21-202002785969 Delivery & Returns 12V OVER DOOR BELL or CHIME CONTACT SWITCH 12 VOLT N/O Sorry Currently Out of Stock Product Code EBE01-21-202002785969 £12.99 Sorry, this item is out of stock. Please email or call us to check availablilty.