GroStar pH calibration kit (pH 4/7, 8 oz. each) Eye Protection not to mention soil microbes

not to mention soil microbes to help increase root efficiency and encourage nutrient uptake

Power (watts)(1): 1

Simply place the pad on the surface of your plant

Optional Remote Monitors - DH18082 (Model 8082) Temperature/Humidity Sensor Module

GroStar pH calibration kit (pH 4/7, 8 oz. each) Eye Protection not to mention soil microbesGroStar pH calibration kit (pH 4 7, 8 oz. each) Product Details GroStar by Apera pH calibration kit (pH 4 7, 8 oz. each) Kit includes: (1) 8 oz. pH 4. 0 calibration solution (1) 8 oz. pH 7. 0 calibration solution pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings. High accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25C (77F). ideal for the calibration of all pH meters