Meters & Instruments

Nutrient Meters by HM Digital and Light Meters too. Measuring and adjusting pH and PPM / EC / TDS is essential for optimizing your nutrient solution. We offer a selection of high-accuracy pH meters, PPM meters, and combo meters available today. They are reliable and easy to maintain. Use our calibration solutions and storage solutions for single or multi point calibration meters. Plus, you’ll find a variety of replacement probes. Light Meters for understanding light distribution and optimizing the placement of lights.