Sensor

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    Optical sensors are the go to sensor if you want a reliable sensor over a long period. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir with liquid in it.   This sensor plugs into your FMM and, using…

    $24.95

    …Using a tiny optical sensor, AutoAqua's Smart Level Sensor will cut power to the outlet when the sensor detects a change in water level. The plug & play design requires no difficult programming and the magnetic attachment makes placement and adjustments of the level sensor quick and easy. The Smart…

    $59.99

    …Skimmer Security sensor and outlet. The easy to clean optical sensor will magnetically couple to any skimmer collection cup (up to 1/4" thick), and when the cup gets full it will shut down your skimmer pump keeping the skimmate in your cup and not your sump. Just mount the sensor inside of your cup…

    $59.99

    …carbon, GFO or any media of your choice.    XPAqua’s proprietary dual-optical sensor packs two precise level sensors in one incredibly small package. In addition to keeping your water level constant, the two sensors also work in concert with the intelligent QST programming to help prevent…

    $149.99

    …in the solenoid. It is that easy.   The solenoid works in conjunction with the ATO controller and sensor to allow the flow of RODI water to your sump and when the water level is replenished the sensor will tell the controller to shut off power to the solenoid to close the valve and stop the flow of…

    $22.99

    This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in your sump, water storage level sensor, and…

    $34.95

    …get one 1″ Flow Sensor as well as two 1/2″ Flow Sensors. For North American customers, adapter fittings are also provided. (The 1/2″ sensors are rated for flow rates from 30-250 gph. The 1″ flow sensors are rated for flow rates from 150-1500 gph.)   ONE PORT FREE – ADD ANOTHER SENSOR! The FMK comes…

    $199.95

    …light is available the 7097.050 photo sensor will turn your pumps off automatically by picking up how much available light is being picked up by the sensor. When the light is on the pumps will ramp up to follow the max settings on the controller. The photo sensor should be placed directly under your…

    $34.35

    …Fluid Metering Module with re-designed optical sensors to monitor your water level. The dual sensor design allows for the ATK to have one main water level sensor and the other as a backup should the first ever get dirty. On top of the optical sensors, a mechanical float valve is integrated into the…

    $199.95

    Build Your Own Auto Top Off System for your aquarium. Perfect for the DIY reefer who likes fun projects and wants to save a few dollars. Assembly requires only basic tools and no soldering. Basic knowledge of electrical wiring required. Aquahub DIY Top-it-Off Kit Premium Kit includes: (2) Aquahub…

    $45.99

    …level in the sump box. Accepts the Modular Return Pump Basket Filter Creates a steady water level for the protein skimmer Perfect spot for ATO sensors Titanium clamping Screws Crystal clear acrylic   The Modular Return Pump Basket Module fits perfectly in the Somatic line of Filter Systems letting…

    $49.99

    …Includes pumps & tubing Optical sensors = no moving parts Secure tube holders Siphon breaks   The simple system uses dual optical sensors, one for a high water level and another for a low water level. The high water level sensor acts as the ATO sensor, knowing when to refill your saltwater…

    $209.99

    Hold your standard probes in style. Vertex Sensor-Mount is an acrylic probe holder which hangs on the edge of your reef tank 3 Standard size 1/2" holes   Overall Dimensions - 4" x 4" x 2"

    $11.99

    …get one 1″ Flow Sensor as well as two 1/2″ Flow Sensors. For North American customers, adapter fittings are also provided. (The 1/2″ sensors are rated for flow rates from 30-250 gph. The 1″ flow sensors are rated for flow rates from 150-1500 gph.)   ONE PORT FREE – ADD ANOTHER SENSOR! The FMK comes…

    $99.95

    …Includes float switches and brackets   Float Sensors The A.T.O. is equipped with (2) float sensors that activate within seconds when your water level drops and automatically refills your sump or tank until it reaches your desired set point. Each float sensor has been designed with an exterior guard…

    $84.99

    …of Mind Penny-Sized Sensors Auto Time Delay   Smart Skimmer Security Sensor - Just place the penny-sized sensor in your skimmers collection cup, and plug the pump into the outlet connected to the Smart Skimmer Sensor for overflow protection.   Smart Temp Security Sensor - Pre-set safe temperature…

    $159.99

    …tanks, approximately 50 gallons and under. One of the safest ATO’s available. Utilizes a single sensor to monitor water levels and a controller that protects against overdosing. Magnetic holder for sensors up to 10mm or .39". Max Head Height: 7.0 ft   Introducing the little brother to the Tunze…

    $97.46

    Ultra Quiet Sine-Wave DC Technology! Max Flow - 4,755 GPH (18,000LPH) Small, Efficient, and Smart, Skimz SuperSilent DC Wavemaker powerheads use sine-wave DC technology along with high-quality 6-pole motors, producing a high-performance pump for any aquarium. Paired with the included controller you…

    $119.99

    Know Your Flow! 2" Flow Sensor for the Fluid Metering Module from Neptune.  The FS-200 will work with flow rates from 300-3000 gph, and will connect to any standard 2" 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,…

    $99.95

    …Duetto is the perfect ATO for your aquarium. XPAqua’s proprietary dual-optical sensor packs two precise level sensors in one incredibly small package. In addition to keeping your water level constant, the two sensors also work in concert with the intelligent QST programming to help prevent…

    $119.99

    …loud beeping noise when the sensor detects moisture 3/8" FNPT (ID) Threads or 1/2" BSP Threads (OD) Can be adapted to push-connect fittings Handles up to 5 GPM Low battery alert Fail-safe low power auto-off High frequency alarm Mesh pre-filter The Leak Block Sensor from HM Digital includes an…

    $53.00

    Xp Aqua's Ultimate ATO - The most complete ATO on the market    With 2x dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents your sump from running…

    $199.99

    …the float valve or moving parts. AutoAqua utilizes an optical sensor to visually look at the water level. With the magnetic mounting of the optical sensor placement options are limitless while if the magnets are ever to slip or the sensor gets knocked and moved, the Micro ATO provides a real-time…

    $134.99

    …the included bracket that also holds the dosing pick-up tube perfectly placing it at the bottom of the dosing container.    Specifications: Dimensions - 9.25" L x 2.375" W x 8.5" H Total Volume - 2 Liters   What's Included? 1x Alkalinity Dosing Container 1x Level Sensor Assembly 1x Sensor Bracket

    $14.99

    …audible alarm in the event water comes in contact with its sensor pads. It is extremely sensitive and we have found they even work with RODI water. The Watchdog monitor is small enough to slip between sumps and stands, or the wired sensor can be placed in even tighter locations. A single 9V battery…

    $12.99

    …your older Tunze pump without an integrated controller to create wave simulation, while having a food timer and the ability to hook up a photo sensor to have the pump enter night mode automatically. Feed Mode Wave Simulation Oscillating Current Optional Night Mode Auto-Adjust Wave Timing Large…

    $53.28

    …to the side of all Somatic Filtration Systems with the included titanium screws.   Specifications: Dimensions - 3.625" L x 1.0" W x 0.75" H Max Probe Diameter - 0.625" Min Probe Diameter - 0.465"   What"s Included? 1x Sensor Holder 2x Titanium Mounting Screws 4x Titanium Sensor Holding Screws

    $26.99

    Know Your Flow! 1/4" Flow Sensor for the Fluid Metering Module from Neptune.  The FS-25 will work with flow rates from 3-12 gph, and will connect to any standard 1/4" push connect tubing. Usually used with a return pump, this flow sensor can be placed in line with the flow on any pipe, connected to…

    $19.95

    …for refugiums, and nano tanks.  5000K to 25000K Adjustable Color Temp Magnet Mounting System Temperature Sensor Aluminum Heat Sink Completely Waterproof Contact Free Control Sensor Absolutely Silent   Efficient Suitable for refugiums, soft, corals, and even some hard corals, the full spectrum…

    $156.60

    …design is fully waterproof and is perfect for refugiums, soft coral, and freshwater aquariums. 6500K Color Temp Magnet Mounting System Temperature Sensor Aluminum Heat Sink Completely Waterproof Absolutely Silent   Control The Tunze Eco Chic 8821.00 can be controlled through a simple timer, or any…

    $70.95

    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