Milwaukee Instruments pH WP Waterproof pH Tester led These lamps provide high-quality growth

These lamps provide high-quality growth spectrum

Produces a stronger seedling with a larger root system

Blades stay sharp longer

SunBlaster includes everything you need but seed and soil

Milwaukee Instruments pH WP Waterproof pH Tester led These lamps provide high-quality growthRange 2. 0 to 16. 0 pH Resolution 0. 1 pH Accuracy 0. 1 pH ATC automatic Calibration 2 points automatic User select 6 buffer types Environment 32 122F (0 50C) Display LED & push to hold Auto Off after 8 minutes of non use Battery life 300 hours of use Battery type 1. 5V button 4 Included Unit is labeled "Martini Instruments". Martini Instruments is a laboratory equipment division of Milwaukee Instruments.