Bluelab pH Pen field This high-quality blend features a

This high-quality blend features a variety of seeds

Package Size: 50 lbUse: Livestock Feed

8" S-Prime Evo EC

Postmergent spray

snap-on jar

Bluelab pH Pen field This high-quality blend features aThe Bluelab pH Pen is a handy option for hobby and small scale hydroponic growers. Maintaining proper pH levels is key in raising healthy, fruitful plants, and this pen accurately measures both the pH and temperature in hydroponic systems. Its fully waterproof and also features a backlit LCD with the option to display in Celsius and Fahrenheit, double junction probe, successful calibration indicator, hold function, low battery warning, auto off