Xi'an Shelok Instrument Technology Co.,Ltd.
PH meter
- China magnet digital gauss meter / tesla meter
- 5 Pieces
- USD $410 - 550 / Piece
- Pocket pen style digital smart TDS meter price
- 5 Pieces
- USD $2.0 - 5.5 / Piece
- Digital pen type ph meter
- 5 Pieces
- USD $12.5 - 25.5 / Piece