HM pH-200 ProbeTip/ReplacementSensor PH-200 Humitidy Just plug the Aux Box

Just plug the Aux Box into a mains socket and connect it to the Maxi Controller using the supplied lead

ornamentals

Secure poly bonding -1

bloom-boosting supplement

Comes with a very useful laminated recipe and measurement conversion card

HM pH-200 ProbeTip/ReplacementSensor PH-200 Humitidy Just plug the Aux Box*This is the replacement sensor only!* Product Description: HM Digital's PH 200 is a digital waterproof pH meter (aka pH tester or pH pen) that is ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more. It is fast acting, features amazing results