Hello from AZ, where can I find a guaranteed to be s7

[jonathonmp]

I currently have an m4 995 but was wondering if all the detectors on the ebay store are the s7 or how would i verify that, before i purchase one. Ive had an 940 s7 and to me it kills my 995.

[djrams80]

I know the Escort 8500 non-X50 and the Bel RX65 are S7s. Not sure on the rest of them.