Oakton pHTestr 30 w/0.01 pH Accuracy, Temperature Display & ATC (Automatic Temperature Compensation) microbes Product Highlights Fits Metal Halide

Product Highlights Fits Metal Halide ballast

The absence of frame wire eliminates any shadows in beam

and c) duplicates a naturally occurring process in plants

and high quality German glass coated aluminum reflectors

but will light any manufacturer's lamps

Oakton pHTestr 30 w/0.01 pH Accuracy, Temperature Display & ATC (Automatic Temperature Compensation) microbes Product Highlights Fits Metal HalideOptimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going on with your plants. Use the Oakton pH tester with accurate ATC to get instant at a glance readings. Features Reliable waterproof, dustproof housing Replaceable electrode to provide long life and value Auto shutoff conserves battery life Large display screens Replacement sensors: OK 35624 09 for pHTestr 1 OK 35624 29 for pHTestr 2 OK 35653 01 pH 4. 0?