KETOTEK Water Quality Test Meter, Ph Meter Tds Meter 2 in 1 Kit with 0-14.00PH and 0-9990 ppm Measure Range for Hydroponics, Aquariums, Drinking Water, Ro System, Pool and fishpond Outdoor Recreation the double sided dry erase

the double sided dry erase boards can be stored on a shelf (or cupboard) in the back of the classroom

it might fit less or more than 12 macarons

🎄Auto Control - The Christmas lights outdoor projector can turn on/off automatically according to the light intensity

more sensitive and stable

9 MULTIFUNCTIONAL NOZZLE : Our garden hoses come with 9-pattern adjustable hose spray nozzle

KETOTEK Water Quality Test Meter, Ph Meter Tds Meter 2 in 1 Kit with 0-14.00PH and 0-9990 ppm Measure Range for Hydroponics, Aquariums, Drinking Water, Ro System, Pool and fishpond Outdoor Recreation the double sided dry eraseMORE CONVENIENT IN USING. 5 seconds to get the data of PH or PPM, know the water quality accurately. The pen meter partner also can be separately used whenever you need. WIDELY USED AND ACCURATE. Digital TDS meter has measurement range 0 9990ppm and 2% accuracy, PH meter has measurement range 0. 00 14. 00PH, 0. 01PH accuracy and 0. 01PH resolution. AUTO OFF FUNCTION AND EASY TO USE. TDS pen meter and PH pen meter both have the function of Auto off to