Can the Oricom Secure 710 Extra Camera be linked with a pre-existing Oricom Secure 710 model?

Hi Aimee, Thank you for your enquiry. The Oricom Secure 710 Digital Baby Monitor is multi-camera capable and can connect to up to 4 camera units (CU710). The Oricom Secure 710 extra compatible is built for this purpose. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our on-line store finder. Here you can find contact details for your nearest Baby On The Move store where one of our team experts can help find a suitable solution for a product you may be searching for and assist you with any further questions regarding our range of products available. We hope this has helped with your query.