Water Quality Tester Orp Ph TDS Ec Salinity Sg 7 in 1 Meter

[7-in-1 water quality meter]: water quality tester with full function, can measure ph, tds, temp, ec, salinity, sg, orp, switch at will, simple and portable. omni-directional measurement of water quality to ensure the health of water quality. [high accuracy]: this water quality testing pen has high accuracy electrode, using alloy probe to ensure accurate measurement values. and the digital ph meter has a data hold function and a low battery indicator function. [ph meter with automatic temperature compensation]: temperature can affect reading levels, our water meter's automatic temperature compensation can ensure that you're getting the best possible reading. unlike other ph meters for water hydroponics that only have a range of 0 °c-50 °c, our ph meter for water hydroponics has an even better range of 0 °c-60 °c (32 °f-140 °f). [lcd displ