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Showing results for tags 'par meter'.
I'm slowly going through some of the things I don't need anymore and as I do I'll post them up here for sale To start with: Apogee SQ-520 LED PAR sensor. Requires laptop or something to run as a readout and run software. Works great and recently recalibrated by Apogee. $375 Hanna Alkalinity checker with 3 bottles of reagents and 3 and a half bottles of reagents that expired in February that are still reading good tests results $45 Hanna Calcium checker $40 Both rarely used