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REEF STATUS CALCIUM TEST Seachem Reef Status™ Calcium
50 TESTS
This kit measures all types of calcium, including gluconate calcium. The method is based on specific titration with a unique indicator. Measures in increments of 5 mg/L. Each kit runs 150 tests.... — Free Shipping when ordering $50 or more of qualifying items. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
Checker pH Tester with Replaceable Electrode Hanna Instruments Checker pH Tester with Replaceable Electrode (HI98103)The pH Checker supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration.
The pH electrode of the Checker can be easily replaced. You only need to unscrew the electrode from the meter... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
hf-HI98103
$28.11
Dosatron In-Line Filter Kit w/ Unions - 3/4 in (200 Mesh / 80 Micron) Inline filter kit includes a cleanable, permanent, stainless steel filter that is a 200 mesh/80 micron. The inline connecters are 3/4 in FPT by 3/4 in FPT. No replacement cartridges necessary.... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
709016
$28.18
Spare Electrode Spare Electrode (970301)Spare electrode for Prestige PH Meter (part #397100)
Manufacturer's Product Information
MSRP $39.95
Dimensions1.5 x 1 x 2
... — Ships from DL: Livermore, California USA....more info.
Hydro RX Water & Soil Hydrofarm Hydro RX Water & Soil (HGLABTEST)Tired of guessing whether your water's nutrient levels are adequate? Hydro Rx takes the guess-work out of water management. Hydrofarm Test Lab has developed a kit that lets you manage your plants' nutrients with lab-tested precision. Hydro Rx is simple: Just take a source water, hydroponic solution, or soil sample and send it back to Hydro... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
HM Digital Replacement Probe for pH Model PH-200 Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with digital fine tuning. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
EC/TDS/Temp Waterproof Hydro Tester HM Digital Meters EC/TDS/Temp Waterproof Hydro Tester (HMDCOM80) KEY FEATURES
Best value in its class (under $50)
Measures electrical conductivity (EC), TDS and temperature.
Automatic Temperature Compensation (ATC)
Water-resistant housing
Large LCD display
Hold button and Auto shut-off
Digital Calibration (push butto... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
MA812D/2 REPLACEMENT PROBE FOR SMS410 (1/CASE) Milwaukee TDS Monitor [model SMS410]
MA812D/2 REPLACEMENT PROBE
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. 15... This item is sold individually. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
Replacement pH Sensor PH-200 HM Digital Meters Replacement pH Sensor PH-200 (HMDSPP2)This spare pH sensor is for HM Digital Waterproof pH Meter model P-200. Features Glass pH sensor and reference tube and thermister.
Manufacturer's Product Information
MSRP each $49.95
Dimens... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
Tower of Power 6 Outlet Surge Protector Tower of Power (eco-4529)Tower of Power
Hydrofarm’s Tower of Power
Introducing Tower of Power -The Remedy for Packed Power StripsSay goodbye to over-crowded, under-utilized power strips. Hydrofarm's TOWER OF POWER offers 6 outlets with enough room to accommodate even the bulkiest timers and adapters. The Tower of Power will handle all you can throw at it. In your home office i... — Ships from Seattle, Washington USA....more info.
Accurate pH 1. This is the Accurate pH 1. The Accurate pH 1 meter has clearly been manufactured to compete in the market place for entry-level growers. Control Wizard should do well against competitor models, as this meter is stylish, gives solid readings and has a good feel in the hand. It has a two-point calibration process that is easy to do and takes little time. This meter reads in pH points... Note: Calibration Buffer Solutions are available separately. — Ships from Portland, Oregon USA....more info.
MI MA911B/2 REPLACEMENT PROBE FOR SMS110 (Special Order) Replacement probe for Milwaukee pH Monitor [model SMS110]
(MA911B/2)REPL.PROBE/SMS110
About the meter (no included): 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 junc... — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
Future Harvest Nutradip pH Replacement Probe Nutradip pH Replacement ProbeFuture Harvest Nutradip pH Replacement Probe (716365)Nutradip pH Probes are the reliable way to measure acidity in your nutrient solution. The pH Probe is a continuous monitoring pH meter with automatic temperature compensation, and dc power built in for portability. Nutradip Probes are engineered for accuracy and durability, helping growers measure... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
pHep Hanna Instruments pHep (HI98107)The pHep revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH measurement.
This tool is used by millions of people around the world to monitor pH in laboratories and industrial applications as well as in agriculture, fish farming, food manufacturing and quality control, swimming ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
Primo TDS Tester Hanna Instruments Primo TDS Tester (HIPRIMO)Primo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples. Each tester is ideally suited for the rigorous demands of water quality professionals. Many professionals use the cabled version of the Primo when demonstrating the before and after results of conditioning... Note: Calibration Buffer Solutions are available separately. — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
PH/Temp Probe for pH55 & pH56 Milwaukee Instruments PH/Temp Probe for pH55 & pH56 (MIPH55PROBE)This is a replacement electrode for the ph55 and pH56 models of pocket pH/Temperature meter by Milwaukee Instruments.
Manufacturer's Product Information
MSRP each $49.95
UPC810666001606
Dimensions1 x ... — Ships from HF: OR, CA, CO, PA, TX, FL USA....more info.
CW SOIL, pH AND MOISTURE MONITOR Control Wizard Soil pH and Moisture Meter
ACCURATE PH 7
Control Wizard Products is now introducing its Accurate pH & moisture meter for soil growers. Until now, soil growers with the need to keep careful tabs on the pH of their soil has had to rely on either cheap, poor quality meters that are very expense and hard to get. This new meter is the best of both worlds. It is rela... Note: Calibration Buffer Solutions are available separately. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. Note: the WA warehouse is moving in Jul & Aug, some orders may be delayed 1-2 days....more info.
Meters, Timers & Instruments 
