REEF STATUS CALCIUM TEST Seachem Reef Status™ Calcium
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 $75 or more of qualifying items....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.
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.
HM INLINE DUAL TDS MONITOR HM Digital In-Line Dual TDS Monitor Model DM-1
INLINE DUAL DM1 TDS MONITOR
Displays TDS levels of the feed water and product water with in & out electrode probes.
Highly efficient and accurate due to its advanced microprocessor technology.
Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
Dual Range 0-9990 ppm.
Fac... Note: Calibration Buffer Solutions are available separately....more.
Hanna Checker pH Tester (HI 98103) Hanna Checker pH Tester (HI 98103)Hanna Checker pH Tester (HI 98103) (716435)At the cost of just a few rolls of litmus paper, you can have the industry's best pocket-size pH tester. The Checker supplies you with fast and accurate readings from 0.00 to 14.00 pH with a resolution of 0.01 pH. This compact tester features a large easy-to-read LCD and a simple to perform 2-point calibra... Note: Calibration Buffer Solutions are available separately....more.
HANNA PRIMO TDS TESTER
Hanna Primo TDS Tester
The Primo TDS tester provides a fast and dependable way to measure the Total Dissolved Solids in your water samples. It is ideally suited for the rigorous demands of water quality professionals, who will appreciate the practicality of Primo's easy-to-read LCD when demonstrating the before and after results of conditioning and filtration systems. Temperat... Note: Calibration Buffer Solutions are available separately....more.
MULTITEST MARINE Seachem Multi•Test™ Marine Basic
This kit combines the Marine pH & Alkalinity, Ammonia and Nitrite & Nitrate kits into one kit.... — FREE shipping when ordering $75 or more of qualifying items....more.
B.L. pH PROBE CLEAN-CALIBRATION KIT B.L. pH PROBE CLEAN-CALIBRATION KIT (14/CASE). Probe cleaning is one of the most important parts of owning and operating any Bluelab Truncheon™, meter, monitor or controller. If the probe is contaminated (dirty), it affects the accuracy of the reading displayed. The probe surface is where the instrument takes the reading of the solution. The information is sent back from the ... Note: Calibration Buffer Solutions are available separately....more.
PH REPLACEMENT PROBE Special Order For HM Digital Waterproof pH Meter Model PH-200
Measures pH and Temperature.
Auto-ranging three point calibration with digital fine tuning.
Includes 4 pH buffer solution in a sponge embedded in a clear cap.
Simultaneous temperature display.
Measurement Range: 0-14 pH.
Digital automatic calibration (one point), with digital fine tuning.
Auto-off f... ...more.
REEF STATUS MAG. TEST Seachem Reef Status™ Magnesium & Carbonate/borate Alkalinity
75 DETERMINATIONS FOR EACH TEST
Four kits in one! Tests for magnesium through a titration based procedure in increments of 12.5 mg/L. Tests for carbonate alkalinity, borate alkalintiy and total alkalinity in 0.1 meq/L resolution through a titration based procedure. The kit resolves borate from carbonate and, al... — FREE shipping when ordering $75 or more of qualifying items....more.
REPLACEMENT ELECTRODE FOR PH PEN Replacement Electrode for pH Pen (MTR-REPH)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic temper... Note: Calibration Buffer Solutions are available separately. — Ships from Perris, California; Cranston, Rhode Island; Portland, Oregon; Aurora, Colorado; Dallas, Texas USA...more.
pH Checker 1. HANNA pH CHECKER 1 (LIQUIDS ONLY) Digital readout.Not temperature compensating but a very good value. We don't get many of these returned so we keep on selling them. Out-performs their more expensive models. Replaceable electrode.... — Ships via UPS from Portland, Oregon USA...more.
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 via UPS from Portland, Oregon USA...more.
MILWAUKEE MARTINI PH55 PH/TEMP PROBE ONLY Probe Only FOR Martini pH55/Temp Tester
IP67 Waterproof pH tester with large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from 2.0 to 16.0 pH and simultaneously shows temperature from 5.0 to 105.0°C or 23.0 to 221.0°F. This tester has a stability indicator and hold function that freezes the display for easy and... ...more.
24-7 PPM Replacement Probe 24-7 Nutrient Monitor24-7 PPM Replacement Probe (716579)A great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature. Its large illuminated green LCD display allows easy reading from a distance. Both pH and PPM are temperature compensated for accurate readings. The electrodes are replaceable at a relatively low price. Calibrati... ...more.