24-7 Nutrient Monitor Replacement PPM Probe 24-7 Nutrient Monitor Replacement PPM ProbeThis item is the replacement PPM probe for the 24-7 Nutrient Monitor.The 24–7 Nutrient Meter from Control Wizard Products is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature and with its large illuminated display it is easy to read from a distance. Calibration screws are co... — Ships from Portland, Oregon USA...more.
BLUELAB® TRUNCHEON™ SOIL pH REPLACEMENT PROBE (SPECIAL ORDER ONLY) For BlueLab Soil pH Meter
SOIL PH METER REPLACEMENT PROBE ONLY(SO)
About the meter:
If you need to measure the pH level of soil, media or substrates, then the Bluelab® Soil pH Meter is just what you need! Our meter can be used by everybody from the home enthusiast to commercial growers. 5 year Bluelab® Guarantee (6 month for probe).
Quality soil pH probe included.
Supplied i... — Free Shipping when ordering $75 or more of qualifying items....more.
Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) Dual Grochek - pH, TDS, Temp. Continuous monitoring (HI981404N) (eco-5422C)GroChek pH & TDS Combo Continuous Reading Meter
Displays pH & EC Simultaneously
Hanna Dual Grochek
The HI 981404N is ideal for hydroponic
applications where pH and TDS
levels need to be continuously monitored.
These wall mount monitors
feature a larg... — Ships from Seattle, Washington USA...more.
MI SMS110 PH MONITOR (1/CASE) Milwaukee pH Monitor [model SMS110]
SMS110 PH MONITOR
Model SMS110 pH monitor, range: 0.0 to 14.0 pH, with 2 point manual calibration, and accuracy of 0.2 pH. Set point range: 3.5 to 7.5 pH, and led visual alarm active when reading is higher than set point. Supplied with 12v DC power adapter, MA911B/2 double junction pH electrode, 20ml. pH 7.01 buffer solution and screwdrive... Note: Calibration Buffer Solutions are available separately.This item is sold individually. — Free Shipping when ordering $75 or more of qualifying items....more.
MI SMS410 TDS MONITOR (1/CASE) Milwaukee TDS Monitor [model SMS410]
SMS410 TDS MONITOR
TDS monitor, range: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration and automatic temperature compensation. Set point range 700 to 1800 ppm, and led visual alarm active when reading is lower than set point. Supplied with 12v DC power adapter, MA812B/2 conductivity probe and 20ml. 1500 ppm p... Note: Calibration Buffer Solutions are available separately.This item is sold individually. — Free Shipping when ordering $75 or more of qualifying items....more.
OAKTON MULTI PTTESTER 35 (PH/TDS/TEMP) Oakton® MULTI PT Testr 35
One pocket sized meter for pH, TDS and temperature!
Up to 5 point pH calibration with NIST or USA auto buffer recognition.
Great for water, laboratory or plant use, this multi Testr features single-junction pH electrodes for longer life and wider range of sample compatibility. Pin-style conductivity sensors feature stainless steel electrodes for chem... ...more.
T75 WATERPROOF TDS TESTER (1/CASE) Milwaukee Waterproof TDS Tester [model T75]
T75 WATERPROOF TDS TESTER
Model T75 Waterproof TDS tester with automatic temperature compensation and 1 point manual calibration range: 0.0 to 1999 ppm (mg/L), replaceable MA73075 probe.
Manufacturer's Product Information
2007 MSRP Each $76.95
Case Weight0.71... Note: Calibration Buffer Solutions are available separately.This item is sold individually....more.
TDS Wand TDS Wand CW512
The TDS Wand™ replaces the EC Dipstick™ as the new flagship PPM meter from CWP Instruments™. The lighted display is large and easy to read. There are no mistakes when the temperature compensating microchip quickly senses the electro-conductivity of the nutrient solution or water sample and automatically freezes the displayed reading. PPM, EC and CF scales are easi... — Ships from Portland, Oregon USA...more.
AQUA TEST KH ALKALINITY TEST KIT 12/CS Elos KH - Test Kit
The alkalinity of a solution refers to its capacity to buffer against drops on pH. It is a measure of the concentration of various negatively charges ionic compounds (anions) such as carbonates, bicarbonates, borates and hydroxides in the aquarium water.
The concentrations of these ions determines the buffering capacity of the water to maintain proper
... This item is sold individually....more.
The lighted display is large and easy to read. There are no mistakes when the temperature compensating microchip quickly senses the electro conductivity of the nutrient solution or water sample and automatically freezes the display reading. PPM, EC and CF scales are easily accessed by easy to read buttons. Cutting edge electronic circuitry keep... — Free Shipping when ordering $75 or more of qualifying items....more.
Dual Grochek - Same as above - self calibrating (HI991404) Dual Grochek - Same as above - self calibrating (HI991404) (eco-5422D)GroChek pH/EC/TDS/Temp. Combo
Large, Dual-level Backlit LCD
Auto Calibration & pH Temp. Computing
Hanna Dual Grochek
The HI 991404 continuously monitors
pH/EC/TDS/Temp. in your
nutrients. Comes with a rugged, nonclogging
pH electrode and conductivity
probe that will stand up to the most
agressi... — Ships from Seattle, Washington USA — Free Shipping when ordering $75 or more of qualifying items....more.
EC SHAKE™ NUTRIENT METER EC Shake™ Nutrient Meter
EC SHAKE METER
This revolutionary EC meter is powered by a magnet instead of a battery! A gentle shaking action generates the energy to power this simple, yet sophisticated meter. With just a few easy steps you will get a quick & accurate reading of the electrical conductivity (EC) of your nutrient solution. This patented meter will completely ... ...more.
HortiCare Nutrient Check PPM HortiCare Nutrient Check PPM (716021)HortiCare Nutrient Check PPM
The function of a nutrient solution or fertilizer mixture is to supply the plant roots with water, oxygen and essential mineral elements in soluble form. Each plant has its preferred nutrient concentration to facilitate the absorption process to the roots. Wrong concentration may result in wilting and suppresses p... ...more.
MULTITEST NITRITE/NITRATE Seachem Multi•Test™ Nitrite/Nitrate
This kit measures nitrite down to 0.2 mg/L and nitrate down to 2 mg/L in marine or freshwater.... — Free Shipping when ordering $75 or more of qualifying items....more.
pH Test Kit 1 oz. pH Test Kit 1 oz. (eco-5517)pH Test Kit, 1 oz
pH test kit.
Contains pH test fluid and test strips
Weight: 1.0 lbs.
Package Dimensions: 5.5L x 2.6W x 1.0H
Suggested Retail: $7.54
Manufacturer's Product Information
... — Ships from Seattle, Washington USA...more.
AQUA TEST NH4 AMMONIA TEST KIT 12/CS Elos NH4 - Test Kit
Ammonia is the most lethal form of inorganic nitrogen produced in aquarium water. The major source of ammonia in a well run aquarium, is from solid waste of fish and invertebrates, uneaten food, decaiyng leaves of plants. Nature comes to our rescue as there are specialized bacteria (Nitrosomonas species) that “eat” ammonia, and strip away the hydrogen atoms. By... This item is sold individually....more.