- USB Smart Quantum SQ-420 PAR Sensor - Apogee
PAR (photosynthetic active radiation) is the easiest way to measure the available light for corals consume and use for photosynthesis. With LED lights giving more and more control to the consumer the best thing is a PAR meter that is affordable and simple to use. With PAR readings you can monitor light degradation, clarity of water, and intensity of the lighting schedule. Most LED lights out on the market today have more power than what your corals can take and will quickly bleach out from too much light. By having a PAR meter to monitor the light intensity you will have tangible numbers to go off of, instead of just guessing.
The SQ-420 USB Powered Quantum PAR Sensor is a valuable piece of equipment that can connect right to your PC and read and record PAR data . PAR meters used to be a few hundred dollars for a simple, entry-level PAR sensor and now the SQ-420 has revolutionized the industry, allowing you to use your own computer instead of having to purchase a dedicated module or extra 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 corals in your tank.
Resolution - 0.1 µmol m-2 s-1
Calibration Factor - custom for each sensor and stored in the firmware
Measurement Repeatability - less than 1 %
Response Time - software updates every second
Field of View - 180°
Spectral Range - 410 nm to 655 nm (wavelegnths where the response is greater than 50% of maximum; see Spectral Response below)
Dimensions - 2.4 cm diameter and 2.8 cm height
USB Cable - 4.6 m (15 ft)
Current Draw (when Logging) - 5.1 mA
Warranty - 4 years
Also available for Mac OS in the App Store
Great sensor, high quality and easy to use. By Eric S. on 3/13/2016Eric S. would recommend this product to a friendThis is the solution I have been looking for! The PAR meters from Apogee give great results that make this hobby a lot easier. The 15' cable with USB on the end is perfect for use with the aquarium. Bring a laptop near by and get live results in the easy to use program that is literally plug and play.
Great PAR Meter - See review on LED error By KerryF on 3/5/2016KerryF would recommend this product to a friendIn looking for info online about optimal PAR levels for corals I found the Apogee website saying that this meter needs a correction factor if used with LED lighting. I contacted their tech support and got a quick response, saying they would be glad to help with error correction info if I sent them a "light spectrum" chart (what?). So I contacted EcoTech and had a great discussion with a person from their new Coral Lab project who happened to be there from Canada. She explained that they used a similar Apogee meter (no error correction) for all the test results shown in the white paper you can access at the bottom of the Ecotech web site. If it's good enough for Ecotech and Coral Lab, it's good enough for me! I'm not going to worry about any error corrections.
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Starting at: $115.99
When will the Mac version come out? all I need is a computer correct?
According to Apogee's site there is current a Mac Software available right now. I have included a link below to the webpage with the software download. For set up you will simply plug in the sensor to your computer and pull up the program. Feel free to let us know if you have any further questions!