TK298PLUS pH Meter 2.0~12.0pH Sharp Tip Long Glass Sensor with Automat – Tekcoplus Ltd.
Moisture, Light and pH Meter • McGregor's – Garden Genius
Digital LCD PH Tester Meter Reader Pen Type [PH Tester] - NZ$6.36 : eMax.co. nz - Online Shopping for Houseware, Home Decorations, Furniture, Home & Living Gifts, Electronics and Toys at Lowest Price