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    Salinity / Conductivity Probe – Lab Grade Start measuring salinity in your tank and get alerts when it is out of range. * Replace an old probe * Add salinity monitoring to your system via the Salinity Module: PM2     Start measuring salinity in your…

    $112.46 Regular Price: $124.95

    …BRS Lab Grade ORP Probe Features: Double Junction Probe: A double junction probe has a second seal and junction found at the center of the probe. The double junction design adds to the cost and complexity of the probe but they are recommended in instances where the probe will come in contact…

    $59.49 Regular Price: $69.99
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    …1x  Apex Control Head Unit 1x Energy Bar 832 1x 6 ft Aquabus Cable 1x Lab Grade Salinity Probe 1x Lab Grade Double Junction pH Probe 1x Lab Grade Double Junction ORP Probe 1x Temperature Probe Salinity and pH calibration solutions   Apex Control System The new Apex's…

    $719.96 Regular Price: $799.95

    …calibrate your Conductivity Probe and PM2 for saltwater salinity monitoring applications. Conductivity probes can be used for many different functions from letting you know the salinity of a tank to the quality of RODI water. We suggest calibrating conductivity probes once every 3-6 months to…

    $2.66 Regular Price: $2.95

    …coupled, padded probe and dosing tube holder. A single CustomCradle can hold probes, top off tubing, and dosing tubing all in one probe holding device.   Probe holders will organize your probes from a tangled mess to an organized success. The CustomCradle probe holders are…

    $31.49 Regular Price: $34.99

    …enters the deionization system, after the single bed resins, and then your final product water after the Pro Mixed Bed resin stage. The inline probes come pre-installed and with the simple push of a button, your waters TDS is displayed on the LDC monitor.  * Glycerin Filled Pressure…

    $297.49 Regular Price: $349.99
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    Long-life Temperature Probe - replace your Temperature Probe, add one for another tank, or put one on your PM2/PM3 module for temperature compensated readings.

    $26.96 Regular Price: $29.95

    …designed a Magnetic probe rack that will hold up to 4 probes with one hole being slightly over-sized to hold those larger probes like the Neptune temp probe. By simply placing the MPR in your sump or tank, you can now securely hold all your probes in a single spot. If a probe is left loose their is…

    $35.96 Regular Price: $39.95

    …resistant * Displays in °F or °C * CAL Check * ±0.5°F accuracy * Silicone probe cable * Large display * AISI 316 stainless steel probe * User selectable auto-off   Hanna's Checktemp comes with a certification…

    $33.15 Regular Price: $39.00

    …BRS Lab Grade pH Probe Features: Double Junction Probe: A double junction probe has a second seal and junction found at the center of the probe. The double junction design adds to the cost and complexity of the probe but they are recommended in instances where the probe will come in contact…

    $47.99 Regular Price: $59.99

    …  The TRM-1 Triple Inline TDS Meter from HM Digital is one of the most essential reverse osmosis accessories. This tool uses electrode probes to monitor the TDS of your reverse osmosis system in three places and lets you know exactly how the system is performing.   …

    $38.24 Regular Price: $44.99

    Milwaukee Calibration Solution sold in boxes of 25 single use packets. Many pH probes will start to loose their calibration in as short as a month or two depending on your probe. We suggest calibrating probes every 30-60 days for the most reliable readings.   Almost all pH monitors…

    $19.54 Regular Price: $22.99
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    Properly storing your pH and ORP probes can enhance the life of the probe's electrodes thus extending the life of your probes. * Ensures the junction does not dry out * Extends probe life * Use with Probe Tip Soaker Bottle

    $11.04 Regular Price: $12.99

    …is to accommodate for the water height requirements for different protein skimmers.   Probe Holder All RUBY sumps come with a probe holder that can hold up to three probes. The holes are 0.63” in diameter.   Locking Filter Sock Holder Filter socks snap…

    $322.99 Regular Price: $379.99

    …  Probe Holder/Hose Inputs Keep your probes and dosing tubings secure. Hold up to 4 probes in the skimmer section of the sump in the preinstalled probe holder. Each hole is countersunk to keep probes from falling through and one is enlarged to fit a Neptune temperature probe.

    $494.69 Regular Price: $581.99

    …directly up to any Apex Controller and with the Neptune Leak Detection probes can alert you of any possible leak that may be occurring by strategically placing the probes around the stand, sump, and tank. Low-profile probe to be used in conjunction with the Advanced Leak Detection Module: ALD…

    $26.96 Regular Price: $29.95

    …also features test probe and dosing tube holders to make the aquarium system complete.   Features * Compact and robust hang-on design * Full top brace support * Spacious chamber design for refugium, segregation or acclimation purposes * Probe and dosing tube…

    $131.74 Regular Price: $154.99

    …controls pH in an upward and downward direction. With proper care, this Pinpoint pH Controller should last a lifetime.   Pinpoint pH Controller Features: * Includes probe and calibration fluids * Excellent for calcium reactor setups * Available for 110 VAC.

    $186.99 Regular Price: $219.99

    …Upgrades * HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the simple push of a button, your waters TDS is displayed on the LDC monitor.  * Glycerin Filled…

    $225.24 Regular Price: $264.99
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    …cutout included to reduce noise and evaporation, which is another unique trait that shows their attention to detail. Rounded corners, euro-bracing, probe holders and dosing tube holders round out the mainstays for a really well rounded sump design.   Features: * High quality…

    $424.99 Regular Price: $499.99

    …Calibration Fluid contains a precise 400mV measurement of calibration solution. Occasional retesting with this fluid will keep PINPOINT ORP/REDOX probes accurate as well as help determine if the probe is ready for replacement. PINPOINT 400 ORP/REDOX Calibration Fluid is sold in a single use packets.

    $3.40 Regular Price: $4.00

    …Reactor - Rated for aquariums up to 150 gallons. * Reverse flow & recirculating design * Auto fill bubble counter * pH probe holder * Easy to remove lid * Precision effluent control valve * Solid construction * 1/4" quick connect fittings   …

    $716.40 Regular Price: $796.00
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    …run their probes directly inline with their plumbing. By using a probe coupler you can simply insert a tee in the line and screw in the probe holder for a leak-free way to have water continuously flowing around your probes giving consistent readings. With most standard pH, ORP, and salinity probes

    $16.99 Regular Price: $19.99

    …the sump water height.   Probe Holder All Sapphire sumps come with a probe holder that can hold up to three probes. The two outside holes are 0.63” in diameter and the center hole is 0.8” in diameter to fit different sized probes.   Hose Holder All…

    $473.44 Regular Price: $556.99

    …System * 1x Trident Cal, Alk, & Mag Water Analyzer * 1x 2-Month Trident Reagent Supply * 1x pH PRobe * 1x Temp Probe * 1x ORP Probe * 1x Salinity Probe * Calibration Solution     Apex Controller System Built-in WiFi, Salinity,…

    $1,259.91 Regular Price: $1,399.90
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    …the sump water height.   Probe Holder All Sapphire sumps come with a probe holder that can hold up to three probes. The two outside holes are 0.63” in diameter and the center hole is 0.8” in diameter to fit different sized probes.   Hose Holder All…

    $386.74 Regular Price: $454.99

    NIST Traceable Salinity Calibration Hanna HI70024P Salinity Calibration Sachets are perfect for any conductivity probe or pen. The single-use sachets are made of light-blocking foil that prevents oxidation, ensuring the solutions are as fresh as the day it was packaged. Each sachet is marked…

    $0.89 Regular Price: $1.05

    …also control any equipment that is powered by an EnergyBar. One common example of common programming and placement is to place a leak detection probe on top of your protein skimmers lid, and if it ever overflows the sensor can notify your Apex of the issue, and shut down the protein skimmer keeping…

    $494.87 Regular Price: $549.85
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    …monitoring and level-detection, the FMM can be used for leak detection. Simply plug in up to four of our new, super-sensitive leak detection probes and place them where you want that oh-so-important protection for your floors, and your marriage! There is one sensor for solid surfaces and another…

    $89.96 Regular Price: $99.95

    …enters the deionization system, after the single bed resins, and then your final product water after the Pro Mixed Bed resin stage. The inline probes come pre-installed and with the simple push of a button, your waters TDS is displayed on the LDC monitor.  * Glycerin Filled Pressure…

    $271.99 Regular Price: $339.99
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    …Upgrades * HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the simple push of a button, your waters TDS is displayed on the LDC monitor.  * Glycerin Filled Pressure…

    $254.99 Regular Price: $299.99
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    …onto the EcoTech Marine Vectra S2 DC Return Pump but will also work with a wide range of additional pumps.   All models feature a probe holder with 4 ports, JG fittings for dosing lines located in the return pump chamber, adjustable water level in the center chamber, black colored…

    $701.24 Regular Price: $824.99