The Bluelab pH Pen accurately measures both the pH and temperature in hydroponic systems. It's 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 function and automatic temperature compensation. This pH pen has a range of 0.0 to 14.0 pH, with an accuracy of ± 0.1 pH, and 0 C to 50 C or 32 F to 122 F. It requires one AAA battery and has a one-year warranty. Battery included.
The Bluelab pH Controller automatically monitors and controls pH within reservoirs up to 200 gallons (760 liters). The flashing high/low alarm with control lockouts includes dosing lockouts to protect from over-dosing, and auto-resume dosing on restart after power loss to ensure fine-tuned pH levels. The plant-safe green backlit LCD with adjustable brightness features a large, easy-to-read display, with easy-to-navigate menus. The water-resistant and wall-mountable controller also includes a 13-foot acid/alkali-resistant dosing tube. For best results use with undiluted Bluelab pH Up or Down.
The Bluelab ppm Pen measures conductivity and temperature and ensures plants are receiving the proper amounts of nutrients. It's fully waterproof and also features a backlit LCD display, optional calibration and a successful calibration indicator, hold function, low-battery warning, auto-off function and automatic temperature compensation. It operates on a scale of 500 or 700ppm and has a range of 0 to 5,000 ppm or 0 to 7,000 ppm, with an accuracy of ± 50 ppm or ± 70 ppm. Requires one AAA battery and has a one-year warranty. Battery included.
The Bluelab Guardian is a constant indicator of the desired levels of EC, pH and temperature, allowing these parameters to be optimized as the crop progresses through each growing phase. A flashing display indicates if a parameter moves away from the desired level, allowing gardeners to make the required adjustments quickly. The Guardian monitors crops 24 hours a day with a built-in alarm system, and also features large, easy-to-read displays with adjustable plant-safe green LED lights, adjustable conductivity and temperature values, push button pH calibration, a silent alarm for both high and low settings, setting retention even during power failure, automatic temperature compensation, and a water-resistant design. The meter ranges are pH from 0.0 to 14.0 with a 0.1 resolution, EC from 0.00 to 5.00 with 0.1 resolution, and temperature from 32 F to122 F (0 C to 50 C) with a 1-degree resolution. The accuracy is ± 0.1 for pH and EC, ± 2 F (± 1 C) for temperature. This product is protected by two-year warranty.
The Bluelab Grower’s Toolbox combines the essential tools to easily manage crops by measuring the pH, conductivity (ppm) and temperature of the nutrient solution. Learn basic hydroponics with The Grow Book. Keep growing with the ultimate handy team, the Bluelab pH Pen and Bluelab ppm Pen. The included Bluelab Probe Care Kit makes maintenance easy and maximizes the life and accuracy of the pens’ probes.
Easily measure and maintain nutrient strength levels with the waterproof Bluelab Truncheon® Nutrient Meter. This meter reads in EC (0.2 to 3.6), CF (2 to 36), TDS/ppm 500 (100 to 1,800) and ppm 700 (140 to 2,520). Accurate within ± 4 percent of reading with a resolution of 0.1 EC, the Truncheon runs on three AA alkaline batteries and comes with a five-year guarantee. Batteries included.
The Bluelab pH Combo Probe serves as a replacement for the same essential component found in our reliable Bluelab Combo Meter. Probe is covered by a six-month manufacturer’s guarantee.
The Bluelab Combo Meter is a conductivity, pH and temperature meter all in one. This battery-powered portable meter can be used anytime, anywhere and features simple push-button pH calibration and an auto-off function to extend battery life. Meter will display temperature as Celsius or Fahrenheit, pH 0 to 14, and conductivity as electrical conductivity, conductivity factor or parts per million (ppm). The meter includes probes, pH calibration solution and two AAA batteries. Unit is covered by a five-year guarantee, except for the replaceable pH probe, which is covered for six months.