I have a different models of SiteHawk. What version of apk can I install?

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SK-200's, SK-4000's and older SK-4500's (serial numbers beginning with 4001), can install up to version 1.58 of the SiteHawk.apk. 

SK-4500's with a serial number beginning with 4006  and SK-6000's can use version 1.59.