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    meter. When you're ready to send the PAR meter and wand back, just let us know through email, phone, or live chat, and we will have a return label sent to your email right away. Just repackage the meter and wand then drop it off at any UPS location. *Deposits are fully refundable, granted the meter

    $50.00

    …and PAR light meter Early warning, intelligent software predicts future water conditions* Convenient alerts sent to e-mail and mobile phone* Access results worldwide, data stored online for easy viewing* Track your results with automatic graphing* USB connection (2.5 meters) with multiple connection…

    $209.99

    The Milwaukee pH600 pH Pen is an economical easy to use meter that returns quick, reliable pH measurements. Specifications: Range: 0.0 - 14.0 pH Resolution: 0.1 pH Accuracy: +/- 0.2 pH Calibration: Manual 1 point Battery Life: 700 hours Dimensions: 150 x 30 x 24 mm

    $24.99

    The FM-2 RO Filter Monitor with Volumizer tracks up to five filter stages at once by time and volume. The monitor allows you to create filter change points at each stage at an individual point in the future or at a specific water volume. When the preset points are reached the FM-2 will alert you…

    $39.99

    …Using a RODI system without a TDS meter is like driving a car without a speedometer and gas gauge.  At some point you will end up in trouble.  With RODI systems it is TDS that you will want to monitor for performance and filter quality.  By using a dual TDS meter it will allow you to see your TDS…

    $29.99

    Sufficient PSI is very important for the correct operation of a reverse osmosis unit. Low water pressure is a leading cause of poor RO system performance. A pressure gauge assures that proper pressure is being supplied. It will also make pressure drops apparent which can tell you that sediment and…

    $12.99

    …Range - 410 to 692 nm (wavelengths where the response is greater than 50% of maximum) Sensor Dimensions - 2.4 cm diameter and 2.8 cm height USB Cable - 2 m (6 ft) Warranty - 4 years   What's Included? 1x Apogee MQ-210 PAR Meter and Sensor   Want to rent an Apogee MQ-210 PAR Meter? Click Here

    $375.00

    …ORP aquarium equipment. The attractive price and high quality has made Milwaukee an increasingly popular choice for aquarists. Milwaukee Smart meters are manufactured to be easy to use, practical and accurate. They are ideal for saltwater aquarium use and provide stable reliable results. The…

    $144.99

    …ORP aquarium equipment. The attractive price and high quality has made Milwaukee an increasingly popular choice for aquarists. Milwaukee Smart meters are manufactured to be easy to use, practical and accurate. They are ideal for saltwater aquarium use and provide stable reliable results. The…

    $221.99

    …last about a year or so until the electrode needs to be replaced, and traditionally you would need to buy a whole new metering pen, now you do not have to replace the meter! Just replace the pH cartridge that houses the electrode, and the sturdy snap-in connector will hold the electrode in place…

    $157.99

    Insurance against leaks and drips from RODI system, and many other household applications! The Latching solenoid automatically shuts off the flow of water and also makes a loud beeping noise when the sensor detects moisture 3/8" FNPT (ID) Threads or 1/2" BSP Threads (OD) Can be adapted to…

    $53.00

    …Display: large and easy-to-read LCD screen includes simultaneous temperature reading Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap,…

    $79.99

    …and temperature with the HM Digital COM-100 Waterproof Meter. Automatic Temperature Compensation (ATC) IP-67 Waterproof Housing Large LCD Screen Auto-Off  Low-Battery Indicator Digital Calibration Factory Calibration   Conductivity Meters are ideal for many different water applications like reverse…

    $76.95

    …We suggest calibrating probes every 30-60 days for the most reliable readings. Available in: 4.01 pH 7.01 pH 10.01 pH   Compatible with all pH meters and probes.   Milwaukee Calibration Solution sold in single use packets.   Almost all pH monitors and controllers will require two points of reference…

    Starting at:
    $1.09

    The TDS-3 Handheld TDS Meter from HM Digital is a useful tool to spot check the TDS of your home water supply or RO/DI unit output. This unit features a digital display, built in thermometer, and comes with a carrying case. As with all HM-Digital products, the TDS-3 comes factory calibrated.

    $24.99

    Know Your Flow! 1" Flow Sensor for the Fluid Metering Module from Neptune.  The FS-100 will work with flow rates from 150-1500 gph, and will connect to any standard 1" Slip PVC.   Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to the FMM,…

    $59.95

    Owners Manual.pdf All pumps, lights, and other electrical devices are not created equal. You may have two different lights both rated for 100 watts but it could easily be pulling up to 50% more power than its rating, which is generated as heat, and other inefficiencies that can cost a lot of money…

    $26.99

    Replacement pump for Tunze Osmolator Universal 3155 auto top off system.

    $23.95

    Why does BRS recommend this? The Glycerin filled pressure gauges are our preferred gauge.  Compared to an air-filled gauge they will be much quieter as water has a tendency to vibrate when running, as well as lasting much longer as the oil in the gauge will soak up the vibrations which can cause…

    $19.99

    Owners Manual   An overflow or a leak from an aquarium or it's equipment can cause a huge mess if not caught right away. The Watchdog is a stand alone leak detection alarm that will give a very loud audible alarm in the event water comes in contact with its sensor pads. It is extremely sensitive and…

    $12.99

    metering head assembly for the Neptune DOS Fluid Metering System. The easy to install head replaces the tubing, roller, and plastic housing head cap. Installs in minutes Replaces wearable tubing   The Neptune DOS Replacement Head assembly comes with everything to replace the current fluid metering

    $29.95

    The SM-1 Single Inline TDS Meter from HM Digital measures the TDS of a single water line. This is a great tool to monitor the TDS of your reverse osmosis system. Common monitoring locations include pre-system, post membrane or post DI stage. This unit features a digital display and comes with a 1/4"…

    $24.99

    …a TDS meter is like driving a car without a speedometer and gas gauge.  At some point you will end up in trouble.  With RODI systems it is TDS that you will want to monitor for performance and filter quality.  If you have a single or dual DI stage we highly recommend a triple TDS meter as it will…

    $44.99

    The Milwaukee MW101 pH Meter with battery is a low cost, high quality and reliable pH meter. The Milwaukee MW101 pH Meter ships complete with a pH probe, calibration solution, a 9V battery, instruction manual and a screwdriver for easy calibration. Milwaukee Instruments offers the most affordable pH…

    $96.99

    …installed in the meter and will automatically compensate for any effects underwater readings may have.   Apogee has calibrated the MQ-510 sensor with electronic lights that is stored in the firmware of the meter. Calibration with electronic lighting makes it the perfect PAR meter for any type of…

    $495.00

    …water with less resin.    Dual TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - Final output from DI stage 2   Dimensions - 10" x 6.25" x 14"   What's Included? 1x Dual Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter  5 Feet Blue RO Tubing  

    $99.99

    …resin.    Triple TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water into the DI canister Sensor 2 - Final output from the DI canister   Dimensions - 14" x 6" x 5.5"   What's Included? 1x Single Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter  5 Feet Blue RO Tubing…

    $64.99

    …DI resin. This unit features a digital display and comes with two 1/4" GA Murdock Quick Connect Tee's with double o-rings to ensure a proper seal. As with all HM-Digital products, the DM-2 comes factory calibrated. The DM-2 is an upgrade to the DM-1 TDS Meter:   TDS Meter Installation Instructions

    $45.99

    meter. When you're ready to send the PAR meter and wand back, just let us know through email, phone, or live chat, and we will have a return label sent to your email right away. Just repackage the meter and wand then drop it off at any UPS location. *Deposits are fully refundable, granted the meter

    $60.00

    Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - After DI stage 2 and before DI stage 3* Sensor 3 - Final output from DI stage 3   Dimensions - 15.25" x 6.25" x 14"   What's Included? 1x Triple Deionization Canister Assembly 1x HM Digital TRM-1 Triple TDS Meter

    $89.99

    Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage Sensor 2 - After DI stage 2 and before DI stage 3* Sensor 3 - Final output from DI stage 3   Dimensions - 15.25" x 6.25" x 14"   What's Included? 1x Triple Deionization Canister Assembly 1x HM Digital TRM-1 Triple TDS Meter

    $125.99

    …second stage.   Dual TDS Meter Preinstalled Metering Locations Sensor 1 - Incoming water to DI stage 1 Sensor 2 - Final output from DI stage 2   Dimensions - 10" x 6.25" x 14"   What's Included? 1x Dual Deionization Canister Assembly 1x HM Digital DM-1 Dual TDS Meter 5 Feet Blue RO Tubing   What's…

    $64.99