Level Sensor

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    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $15.99

    …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

    sensors are the go-to sensor if you want a reliability over a long period of time. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir that has up to 1/4" thick walls.   Includes Magnetic Mount   This sensor

    $34.95

    …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 Level can be…

    $59.99

    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

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $16.99

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $16.49

    …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 $99.99

    …  Optical Sensor Installation The optical sensor can be mounted in any reservoir with a wall thickness under 1/2" at the level you wish to fill it up to. The cable should be positioned vertically which will stack the optical eyes, allowing it to utilize the dual sensors. The sensor can be placed…

    $69.99 $49.99

    …flow sensors (available also in 2″ and 1/4″ sizes) or choose from one of the options below and add even more functionality!   OPTICAL WATER-LEVEL SENSOR (OPTIONAL) There are many useful purposes for water-level sensors on an aquarium. They can help you build an auto-top-off, monitor the levels in…

    $99.95

    …sump. Just mount the sensor inside of your cup at the desired location and plug your skimmer pump into the 10 amp outlet for simple skimmer security! Peace of mind No Moving Parts Plug & Play Easy Level Adjustment Magnetic Attachment No DIY Necessary Easy to Clean Sensor Auto Time Delay  …

    $59.99

    …Visual LED indicators   Power -Red   Level - Green   Low Level – Green   Water Filling – Pulsing Green   Hydrofill Ti ATO Sensor Specifications Sensor Dimension: 1.25" x 1.06" x 2" Dual sensor design Titanium electrodes Low Voltage: 5V 6 foot cables Magnetic sensor holders support up to 1/2" glass…

    $69.99 $62.99

    …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

    …helps your protein skimmer filter more efficiently by keeping a steady water 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…

    $49.99

    …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 $77.97

    …with 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 Magnesium Dosing Container 1x Level Sensor Assembly 1x Sensor Bracket

    $14.99

    …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

    …Seneye sensor right where you want it with their magnetic mounting system. Strong magnets 100% reef safe Enables water level alarm   The Seneye monitoring system relies on a slide system that is constantly submerged in the water. The Seneye Magnetic Holder now allows you to securely hold your sensor

    $49.99 $29.99

    …piece of equipment just to read what the sensor is seeing. We personally like inputting all of our readings into a spreadsheet to make a chart of light output, as well as overlay the readings on a photo as well. Having a picture with your tanks PAR levels is very handy to have when placing new…

    $227.00

    …system.    Features: World' First 4-Sensor ATO Low water level optical sensor Two sensor dual-stage overfill alarm w/QST programming One sensor for run-dry protection Versatile & easy plug-and-play installation Super precise water level control No programming or adjustments required Works in…

    $199.99

    …overlay the readings on a photo as well. Having a picture with your tanks PAR levels is very handy to have when placing new corals in your tank.   Resolution - 0.1 µmol m-2 s-1 Calibration Factor - custom for each sensor and stored in the firmware Calibration Uncertainty - ± 5 % Measurement…

    $345.00

    …with 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 Calcium Dosing Container 1x Level Sensor Assembly 1x Sensor Bracket

    $14.99

    …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

    …dual optical sensors to view the water level within the aquarium. Optical sensors are great for saltwater tanks since they have no moving parts to fail like traditional float switches. The sensors are held by the magnetic mount that holds the main level sensor and the high level safety sensor. Every…

    $126.99

    …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 levels

    $159.99

    …market today. The Micro ATO includes an optical water level sensor to keep an eye on the level within the sump with no moving parts. The optical sensor is very reliable, even in complete darkness, keeping a steady water and salinity level replacing any evaporated water with fresh water. The Micro…

    $134.99

    …tubing connections   Specifications: Dimensions (approx) - 10.5" x 8.5" x 5.5" Capacity - 2000ml per side (0.52 gallons) Apex, Apex Lite, or Apex Jr. and DOS dosing system required to operate level sensors   What's in the Box? DDR with sensors and cable 4 meters of tubing Getting Started Guide

    $199.95

    …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

    …available. It utilizes an electronic eye sensor to monitor water levels and a backup float switch sensor with an optional audible alarm. The controller protects the quiet metering pump from running dry and reports an empty storage tank. Two magnetic holders for sensors and multiple mounting brackets…

    $199.99 $159.99

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $10.99

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $20.99

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $27.99