Betatrons; Blank electronic chip cards; Blank integrated circuit cards; Centrifugal metering pumps; Electric motor control units for swimming pool, spa, water park and fountain pumps; Electronic inductors; Electronic sensing apparatus, namely, floor mats that sense the presence of a body thereon; Induction voltage regulators; Insulated electrical connectors; Magnetic shark repelling device comprised primarily of magnets; Motion sensitive security lights; Water tank level gauges; Water treatment equipment, namely, devices connected to a water distribution line, which automatically injects a predetermined proportion of fertilizer into an irrigation system used by a greenhouse complex; Water treatment equipment, namely, fertilizer injection devices which connect to a water distribution line, which automatically injects a predetermined proportion of fertilizer into an irrigation system used by a greenhouse complex; Water treatment equipment, namely, fertilizer injection units, namely, devices connected to a water distribution line, which automatically injects a predetermined proportion of fertilizer into an irrigation system used by a greenhouse complex