Bluelab pH Pen. Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right.
Bluelab pH Pen
  • $117.00
Bluelab Combo Meter. The Bluelab Combo Meter is a portable pH, conductivity and temperature meter all in one.
Bluelab Combo Meter
  • $290.00
Bluelab Truncheon Nutrient Meter
Bluelab Truncheon Nutrient Meter
  • $152.95
Bluelab pH Probe. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution.
Bluelab pH Probe
  • $83.00
Quickcheck pH Tester  Range 0.00 ~ 14 pH Resolution 0.01 pH Accuracy ± 0.1 pH  ATC  0°C ~ 50°C  Environment 0°C ~ 50°C Dimensions 151 x 33 x 20 mm  Weight 53 g
Nutri+ pH Quickcheck Tester
  • $30.75
Quick Check TDS Tester  Range 0.00 ~ 1999ppm (mg/L) Resolution 1ppm (mg/L) Accuracy ± 2% F.S.  ATC  0°C ~ 50°C  Environment 0°C ~ 50°C Dimensions 151 x 33 x 20 mm  Weight 53 g Batteries  4 ×1.5V (AG-13)
Nutri+ TDS Quickcheck Tester
  • $30.75
The Hanna Instruments HI 9813-6 Portable pH/EC/TDS/Temperature Meter with CAL Check Feature is a versatile, water resistant, multipara meter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries
Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature
  • $245.00
Alfred’s pH Test Strips are quick, easy, and reliable!  Don’t take any chances, no other nutrient solution characteristic is more important for healthy plants. Without the correct acidity/alkalinity, the ability of your plants roots to uptake critical nutrients is severely limited.  Simply dip the testing zone of the litmus strip in a sample of water or nutrient solution, hold for 3-5 seconds, and you’re done. Now remove the testing strip from the solution, and match its’ color to the pH Range Color Chart.
Alfred pH Test Strips
  • $8.00