Seneye Reef Monitor

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Seneye Reef Monitor

72% Recommend this to a friend (18 of 25)

SKU: 209522

reg. $199.99

Special Price: $139.99

In Stock: 108
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What's This?

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Quick Overview

 Seneye Reef Pack is an all in one monitor for Temperature, Ammonia, pH, Water level, and Lighting.  With a PC you can connect your Seneye monitor directly to any PC or Seneye Web Server to monitor your aquarium.  With the Seneye Web Server you can monitor your aquarium from anywhere you can get internet access via smartphone, PC or tablet. 

  • Automatically monitors multiple key parameters

  • Constantly watching your aquarium, 5600 readings per month

  • Healthier coral, integrated LUX, Kelvin 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 with multiple connection options, including optional USB power adaptor

*some features require seneye+



Full Details

Owners Manual


What does it do?


Constantly monitors water temperature, so you can get an alert if your heater breaks or your chiller fails

Free Ammonia
Monitors the highly toxic free ammonia (NH3) at very low levels, so you can stop your fish from dying from Ammonia posioning.

The seneye monitors pH in your aquarium or pond water between 6.4 and 9. This range is ideal for most aquatic life and by focusing on this range increased accuracy has be achieved.

Water Level
Readings are only taken when the seneye device is in water, no false readings.

Monitors ambient LUX and can be used to take direct LUX readings, understand how your light degrade over time.

Understand where on the kelvin range your lights are and how light can change over time.

Monitor the Photosynthetically Active Radiation (PAR), understand if you have the correct quanity and quality of light for your corals or plants.


Whats Included:

  • Seneye Reef Module


System requirements:

  • Windows PC with a wired or wireless network and TCP/IP protocol, Vista 32-/64-bit, Windows 7 32-/64bit.
  • Full speed USB 1.0 port
  • Minimum 1Ghz processor and 128mb RAM
  • Internet Browser: Internet Explorer 9.0+, Firefox 4.0+, Safari 4.0+
  • Download of seneye connect application required from


Items 1 to 12 of 25 total

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  • Hardware is good, Software is crap By IronChefItaly on 7/9/2017

    PAR Meter (5/5)
    Excellent value for an accurate PAR meter. This is definitely the primary selling feature of this device in my opinion.

    Temperature Meter (5/5)
    Works as entended and easily calibrated.

    Slide Features (1/5)
    Main perk here is the capability to monitor pH and thus dissolved oxygen. Other than that, the ammonia detection can give some notice for quarantine tanks or if something has died. Overall, not much gain for a hefty monthly cost - far from worth it.

    Phone App (2/5)
    Fantastic in concept, poor in practice. This app is absolutely plagued with software issues. For months, my phone recognized the app as being outdated and incompatible with the new iOS.Custom settings are either locked or fail to save each time you reopen the app.

    Web-based Profile (3/5)
    Similar to the phone app. Interface looks fancy but as soon as you try to click something or customize any windows you encounter a network of underlying software issues.

    Notification System (4/5)
    Works as expected. One failing point here is that the function for editing the thresholds work off an overly sensitive drag bar. Good luck trying to set it to exactly 80.0 degrees.

    Support (3/5)
    Intially my unit failed to download its drivers and software updates via wifi. It entered some sort of disk-boot mode and the only way to restore it was to get the files direction from seneye support via email, download it onto a USB then follow their instructions to manually transfer the files to the unit. Quite a bit of headache and for someone who isn't tech savy this would have likely been the end. Other than that, I've communicated a number of issues with great detail to the support team. They've been receptive and initially very promising but its been 7 months since i bought this unit and many if not all issues still persist.

    I can only recommend this device solely for its PAR meter. It seems as if Seneye made a huge initial investment and are now reluctant to invest anymore to maintain and improve their software and support which are lacking by today's standards. If you're considering the Seneye as a cheaper alternative to a controller like the APEX - DO NOT BE FOOLED, this unit is years of development away.
  • Update By JIM on 5/25/2017

    That was actually my fault. I didn't read instructions and customer support anyway replace the device. Now it works great!!
  • Great Product By Charles on 5/4/2017

    This has worked flawlessly for me for the past 2 months. I did purchase the web server as well which for me is a must as I travel constantly for work. The only negative thing I have to say is the suction cup has never managed to stick to the glass.
  • Dead before it even hit water By Jim on 4/17/2017

    I took my seneye out of the box and followed the online instructions. (Which weren't that user friendly) It started to download a new firm wear update and then the unit crashed. I mean dead as a door-nail. Customer service is overseas. So expect bad hours to get a response and when you do they don't address the issues. Stay Away!
  • Great product and good customer service By phillipt on 3/13/2017

    well worth the price , easy to use and monitors what you really need saving you from expensive test kits in the long run.
  • Waste of money By Reggie on 3/10/2017

    I bought this to get an base line of par on my reef before I upgraded my lights. I wanted to slowly increase my par over the next 6-8 weeks. The day I got it I installed and it work beautifully, I used for about 30 minutes. 2 day later I upgraded lights and it would not connect to PC. The "customer support" closes at 11 CST so if you work, they are useless. I have exchanged 20+ emails and no resolution. Keep your $200. My par level is now unknown.
  • Great monitor, if you don't already have one By Jeremy on 2/21/2017

    This is a nice little device for a number of reasons.
    - It is a low cost PAR and LUX meter. LUX for fish-only tanks, and PAR for reef or planted tanks. That alone is probably worth the cost. I just wish it had a horizontal mount, not just the suction cup to mount vertically.
    - It is the only real-time ammonia monitor. That hasn't been a life saver for me yet, but if you have the money, it helps with piece of mind.
    - The temp and pH monitoring is useless to me, since I have Apex, and it already checks all of that, and more. But if you don't have one of the other full-system controllers, this is a great alternative.Temp and pH stay fairly close to my Apex measurements. (Apex is in sump, and Seneye in the tank). And those can be adjusted, if they are off a bit.

    I'm going to continue using this. It's a great safe-guard, and redundancy is good. If they make a new one that does ammonia AND alkalinity or calcium, I will upgrade in a heartbeat!
  • Wont stay put! Par meter works. By Steven on 2/16/2017

    The suction cup mounting stinks! It wont stay on the glass. The monitoring would be nice but i dont wat to have this thing just hanging in the tank. Par meter works good with led lights. At least i can use it to check par.
  • PAR meter works great! By Ronald on 1/17/2017

    Easy to set up for PC laptop and was up and running gathering par readings in 30 minutes. Definitely a must have for deterring light levels for finicky corals!
  • Amazing... By BeardedTridacna on 1/9/2017

    Installed easy, lots of great functions... After a week it began to send texts like "Resistance is Futile". I'm scared, and now it has taken over my household, it even turned the Keurig against me. Note: It made me give 5 stars. Please help me.
  • Affordable Par Meter By ML on 12/18/2016

    Worth the money just for the par meter! You may be surprised how high or low your lighting is until you get one, I sure was.
  • Inexpensive PAR meter By Bob on 12/11/2016

    It works but not with Apple unless you get the wifi version.
    I bought a cheap $99 notebook PC to use it.
    So for $260 I have a PAR meter, by far the cheapest option out there. Who knows maybe I'll set it up for temp redundancy in the future.


Ask a question

Product Questions

Does this work with a MacBook or does it require a PC?
Question by: Trey on May 26, 2017 9:06:00 AM
This is the most recent response from Seneye regarding this:

"At present we do not produce a Mac version of the seneye connect application so you cannot connect your seneye device to your Mac and upload data to This is the only aspect of seneye that is not Mac compatible.

If you own a Mac and want to use a seneye device then we suggest the use of a seneye web server (SWS). This performs the task of uploading data to the seneye servers from your device. The SWS has a build in web page interface that can be used to view data locally and adjust the setting on the seneye device. This interface is fully Mac compatible, as to is the dashboard."

Hope this helps!
Answer by: Zack (Admin) on Jun 5, 2017 11:14:00 AM
Is there any other equipment needed (purchase) to measure PAR?
Question by: Maurice Thomas on Apr 24, 2016 2:13:00 PM
Great question!
The Seneye will include all components for measuring PAR.
Answer by: Connor (Admin) on Apr 27, 2016 11:46:00 AM
Does the Seneye ever need to be re-calibrated for things like PH or Ammonia? Is there a shelf life for the Seneye?
Question by: Jonathon Smith on Jan 14, 2016 1:48:00 PM
Great question!
The System will need to be re-calibrated for the pH and Ammonia. this can be done during the monthly slide change. There is not a shelf life however the slides will only last 1 month in the aquarium. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 14, 2016 5:24:00 PM
is there a warranty
Question by: jerry swank on Dec 5, 2016 2:37:00 AM
Hey Jerry,
Most seneye products come with a one year limited warranty. You can check your warranty here:

Answer by: Jason (Admin) on Dec 7, 2016 7:05:00 AM
I have heard there is an additional $60 fee to measure PAR. Is this true?
Question by: Steven Bidny on Jun 4, 2016 10:34:00 PM
Great question!
There is no additional fee to measure PAR and it is built into the module itself.
Answer by: Connor (Admin) on Jun 9, 2016 2:32:00 PM
Will the light meter, temperature sensor, and water level sensor continue to function without purchasing new slides?
Question by: Steven Bidny on Jun 4, 2016 10:35:00 PM
They certainly will! Only the ammonia and pH will need refill with the disks.
Answer by: Connor (Admin) on Jun 9, 2016 2:33:00 PM
Does the device need to be connected to the Internet (via a PC or SWS) in order to measure PAR? Or can it store the data locally for later upload? If so, will it only measure once an hour?
Question by: Steven Bidny on Jun 4, 2016 10:40:00 PM
Great question!
When plugged into a PC it will be able to monitor and read PAR levels every 10 minutes, Same with the web server. The levels will be kept and stored for viewing previous PAR levels.
Answer by: Connor (Admin) on Jun 9, 2016 2:34:00 PM
I have heard the device requires access to the Seneye cloud to process PUR and spectrum readings? Is this true? Is it only able to capture PAR and lux as a stand alone device?
Question by: Steven Bidny on Jun 4, 2016 10:46:00 PM
The dashboard display on the PC will work well even without the Could or server. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jun 9, 2016 2:37:00 PM
how long is the cable?
Question by: mike conigliaro on Jul 3, 2017 8:25:00 PM
Hey Mike,
The Seneye has an 8' cable. If you have any other questions, let us know.
Answer by: Jason Smith (Admin) on Jul 11, 2017 4:39:00 PM
How is BRS cleaning their Seneye monitors? Will vinager work?
Question by: Tom Weldon on Apr 28, 2017 3:49:00 PM
Hey there,
Due to the sensitive nature of the Seneye device, we only recommend using the Seneye Cleaner located here Avoid using any harsh cleaning materials or chemicals.

Happy Reefing!
Answer by: Zack (Admin) on May 1, 2017 5:47:00 PM
How many slides on initial package
Question by: Carlos on Mar 22, 2016 12:56:00 AM
Great question!
There will be one included slide with the kit. It is a great idea to have replacement slides on hand for replacement in the coming months. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 22, 2016 10:52:00 AM
Can I plug this gadget into an xbox one?
Question by: Jamie Springer on Jun 7, 2016 7:37:00 PM
Great question!
We are not aware of any way for the software to connect unfortunately. Feel free to let us know if you have any further questions.
Answer by: Connor (Admin) on Jun 8, 2016 6:04:00 PM
How does this monitor measures light? Do I have to place it where I want it to take the reading?
Question by: Emmanuel Becerra on Mar 23, 2016 1:00:00 AM
Great question!
This will use a LUX meter similar to a PAR meter and can be moved around the tank to find the correct readings if needed. This is actually an ideal measurement device for LED lights. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 23, 2016 10:49:00 AM
I is this device compatible with iOS devices such as my macbook air?
Question by: Adam Lawless on Jan 20, 2016 1:24:00 AM
Great question!
This is not compatible with Mac or iOS however if you purchase the kit with the web server you can access the information through any browser. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 27, 2016 3:45:00 PM
When using the Seneye is there an ideal PUR & LUX value or range to adjust to to get the most benefit from LED lights? I realize PAR by itself might not be the best indicator
Question by: Marc on May 31, 2017 6:28:00 PM
Right now there really isn't enough definitive information to give specific target PUR values. LUX and PAR are not really ideal measuring tools for determining spectrum and intensity for corals, but ultimately all of these values have more utility to measure relative areas of intensity within the aquarium. This information is helpful for placement of different kinds of corals, but because there is such a range of light tolerance, even within groups of corals such as Acroporas, it's nearly impossible to give a very tight range to shoot for.

Answer by: Zack (Admin) on Jun 7, 2017 4:29:00 PM
Can I limit the amount of time this is in the tank to make the cards last longer? for example if I use it for a hour several times a week would the card possibly last for a year?
Question by: Charles Lewis on Feb 26, 2016 10:48:00 AM
Great question!
Unfortunately there is not a good way to save the discs after placing in the tank. They will lose performance if removed and dried regardless of drying or storage. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 26, 2016 11:23:00 AM
Dos the par meter work with reading hqi lighting i seen u say led's its designed for? What brand of duble ended hqi bulbs do u think are top of line in the hobby
Question by: matthew on Mar 24, 2016 4:26:00 PM
Great question!
The seneye is able to monitor all types of light evenly! For double ended bulbs we have had great luck with the phoenix and Giesemann. I have included a link below!
Answer by: Connor (Admin) on Mar 24, 2016 4:38:00 PM
Am I reading this correctly, the seneye reef will only take a PAR reading every 10 minutes? You cannot move the sensor around and see PAR in real time, like with the apogee?
Question by: Sean Kehoe on Nov 11, 2016 4:00:00 PM
Hey Sean,
The Seneye will record a par measurement every so often, it does also give you live readings as well. You can take multiple measurements around the tank at one time.
Answer by: Jason Smith (Admin) on Nov 14, 2016 10:43:00 AM
To measure PAR, will I need a PC as well? Or can I measure PAR with just the unit itself or by connecting to a Mac?
Question by: Chuck on May 16, 2016 10:16:00 PM
Great question! You will need a PC in order to use the Seneye as it is not MAC compatible.
Answer by: Carter (Admin) on May 24, 2016 11:30:00 AM
What is the accuracy of the temperature reading?
Question by: John on Nov 21, 2016 10:05:00 AM
Great question! The temperature variance will be +/- 2 degrees. :-)
Answer by: Randy (Admin) on Nov 21, 2016 1:11:00 PM
would this system work with a MAC computer?
Question by: kim on May 14, 2017 9:06:00 AM
Hey there,
Unfortunately at present Seneye does not produce a Mac version of their software. If you own a Mac and want to use a seneye device then we suggest the use of a seneye web server (SWS). This performs the task of uploading data to the seneye servers from your device. The SWS has a built-in web page interface that can be used to view data locally and adjust the setting on the seneye device. This interface is fully Mac compatible, as is the dashboard.

Happy reefing!
Answer by: Zack (Admin) on May 17, 2017 11:35:00 AM
Does it come with the power adapter, and slides?
Question by: Addison Henderson on Jul 10, 2016 5:02:00 PM
Hi there,
The Reef Monitor does come with one slide. It is powered through USB that can be powered through any USB port. It does not come with a 120v or 12v power adapter, but they can be purchased separately.
Answer by: Charlie (Admin) on Jul 11, 2016 10:40:00 AM
Can one unit work on multiple tanks? Or do we need to have more then one unit to monitor more then one tank?
Question by: Randy on Jan 3, 2017 1:20:00 PM
Great question! These must be submerged, in which case, you will need one monitor per tank.
Answer by: Randy (Admin) on Jan 4, 2017 11:09:00 AM