if (want_product == AltosUILib.product_altimeter)
return have_product == AltosUILib.product_telemetrum ||
have_product == AltosUILib.product_telemega ||
+ have_product == AltosUILib.product_easymega ||
have_product == AltosUILib.product_telegps ||
have_product == AltosUILib.product_easymini ||
have_product == AltosUILib.product_telemini;