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It's a genuinely complete starting point rather than just the two headline bottles - the additives and the schedule are what make this worth buying over piecing a feed together yourself
three units hit 69+ lbs/hr
If you want one accurate reading source rather than three separate pens that can drift out of sync
giving it a nitrogen and potassium profile suited to bloom without added phosphorus in the bottle itself
Bluelab Combo Meter Plagron It's a genuinely complete startingBluelab Combo Meter One Handheld Pen for pH, EC and Temperature Best for: hobby and mid level growers who want pH, conductivity and temperature readings from a single handheld meter instead of juggling three separate pens. Our thoughts This is the meter a lot of growers graduate to once they're tired of carrying a pH pen in one pocket and an EC pen in the other. It's not cheap, but it earns its keep by cutting your daily reservoir check down to one
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