probe

  1. besskurz

    South Carolina Testing Drygoods SOLD PH probe arduino bundle!! - $35

    Hello arduino ppl out there! Selling cuz I'm not so patient anymore. Tried to setup and I gave up. Works fine, reads fine. You just need to write a code and calibrate. This means, condition = used (once for.. 30min). One single package with: 1) Industrial grade PH meter 0-14ph. BNC connector...
    • besskurz
    • Thread
    • arduino brs controller board calibration controler pcb board ph buffer ph meter ph probe probe
    • Replies: 4
    • Forum: Selling Forum (dry goods)
  2. payrawsa

    Texas Aquarium Controller Drygoods Neptune apex EL with ph probe and temp probe

    Neptune bundle $300 shipped. Buyer pays paypal fees. Neptune apex head unit Eb832 orange Ph probe 2 temp probes Light is sold not included
  3. Djtonton

    Ohio Testing Drygoods BRAND NEW: Neptune Systems Lab Grade Conductivity/Salinity Probe + Fluids

    I have a Neptune Systems Lab Grade Conductivity/Salinity Probe with 3 calibration fluids. Brand new has not been used or taken out of the box. Can ship out as soon as payment is made. Any questions please let me know!
  4. B

    Aquarium Controller Testing Drygoods Brand New GHL Profilix 4e Starter Set (White)

    Brand new in box, sealed. Asking 600. Will consider trades for new or lightly used G5/G6 XR 15 with Mount + some cash.
  5. reefsaver

    Real-time Salinity Monitor?

    I was wondering if there was any Salinity testing equipment that actively reads Salinity in real-time, I use the Hanna Salinity Checker which I really enjoy but sometimes I get the feeling that it's not as accurate as a Refractometer.
  6. E

    Who makes the best PH probe?

    I’m looking to find a accurate and reliable ph probe that is NOT from Neptune, BRS or GHL but I can’t seem to find much about them online, when I search for it all that pops up is what the best ph meters are, but I’m specifically asking about a ph probe with the BNC connector on it
  7. GHL Profilux 4e plus other equipment
    Sold

    For sale GHL Profilux 4e plus other equipment

    Tank crashed. My insurance replaced everything. Selling all of my old equipment. Some of it was purchased used. Tank ran only from May 2nd through September 6th of this year. All prices include shipping. GHL Profilux 4e with expansion port for second pH and temp probe. Unit comes with two temp...
    $500.00
  8. E

    GHL Kh director question

    I had a few questions about the kh director I was hoping some of you could answer, can I use I different ph probe than the “modified” one it comes with? If I did what would happen? is there a way I can set it up to send me my DKH value to my phone or email?
  9. E

    In-line probe holder and Neptune conductivity probe

    So I just went through the huge trouble of making a online probe holder that is on my return pump manifold, the problem is I’m still getting jump readings, it’s off and keeps dropping every hour , is there something I can do to fix this problem? Also does anyone know the max flow than can go...
  10. Manny’s Reef

    Cannot calibrate my pH prove for GHL.

    Can anyone help? I’ve gone through the manual and YouTube videos. It appears that my GHL is missing the “calibrate option” after selecting pH. Anyone know if there is a new method of calibrating the pH probes? What am I missing?
  11. Fishbro

    Utah Aquarium Controller Apex ph and temp probe

    Selling an Apex pH and temp probe $60 shipped. They both were kept in water just taken out for the pictures.
  12. NewYorkReefer1988

    New York Reefkeeper elite V2 and Lite for sale

    I have a Reefkeeper Elite V2 head unit, a Reefkeeper Lite head unit, 4 PC4 power bars (one slightly split on side), an RKM-ALC module, an SL2 V2 module, an SLX module, a NET module, 2 temp probes, 3 ph probes, the SID adapter for computer interface, and all the cables you could want for sale...
  13. ocncheffy

    Strange PH and ORP probe readings

    So my PH and ORP probes both produce these strange drops at random times through the day, then pop back up to the correct reading. My PH probe was calibrated twice two days ago with 7 and 10, and is showing the correct PH reading. Both of these probes are sitting in the third chamber of my sump...
  14. S

    New Jersey FS: Used Neptune Systems Magnetic Probe Rack (MPR)

    Asking Price: $28 Delivered
  15. MattJS

    North Carolina Sold

    Pm is the best way to get in touch with me. PM2 Orange Label module- $55 shipped It’s like new and works perfectly.
  16. Buckwilds

    Voltage in a tank

    So I have known I've had some voltage in my tank for a while now but can't really seem to do anything to cure it. I am using a digital multimeter to read out ac voltage. Currently I have a grounding probe in the tank as with all my equipment on I hit about 60 volts without it in (with it in I am...
  17. Niterunner77

    Apex Salinity Probe not calibrating....

    Hi to all! I just recently purchased my new Apex and so far I absolutely love it! But, the only problem I am having is that I can’t get my salinity probe to calibrate. When I’m calibrating on step 4 it just times out and can’t seem to get the correct salinity range it needs. Is there any...
  18. pluikens

    Minnesota Neptune PM2 Salinity Module and Lab Grade Salinity Probe

    Up for sale is a used Neptune PM2 with Neptune lab grade salinity probe and 3' AquaBus cable. Works perfectly, I just decided I don't need to monitor salinity as closely and I need the funds for another Apex for a new build. Items were purchased new in March. Price is $150 shipped via USPS...
  19. Haubfather07

    Alert for inputs NOT changing

    I had a thought today that it would be nice to get an alert if a probe was having an issue by getting an alert that a reading WASN'T changing. A simple example of this would be temp. There is really only two options, the heaters are on and its climbing or off and its cooling. If my probe is...
  20. scobeyra

    California Equipment for sale from tank breakdowns

    Combined 3 smaller tanks into one RS Reefer 525xl. Have lots of misc equipment for sale. For shipping, add $15. For the Maxspect Razors add $25 shipping. apex jr, w/ temp & ph probe - $150 additional apex temp probe - $15 additional apex ph probe - $40 VDM Module - $50 PM1 module - $50...
  21. S

    Apex stuff and XR30 Pro Gen 3 LED Modules for sale.

    All prices shipped and payment via PayPal within the Continental USA. Neptune Systems Lab Grade PH Probe New - $50 Neptune Systems Double Junction Lab Grade ORP Probe New - $75 Neptune Systems Lab Grade Conductivity/Salinity Probe New - $110 XR30 Gen 3 Pro LED Modules New - $250 XR30/15...
  22. MaddyP

    Neptune Conductivity Probe - Weird Behavior

    Has anyone experienced something like this? It seems the probe is slowly dropping to a point them spiking back to normal. Nothing odd going on with the tank, ATO is working as expected. These spikes don't correlate with any of the other equipment operating. #apexusers
  23. Fr4nkthet4nk

    How often do I have to calibrate APEX PH probe?

    I bought My APEX 7 month ago. I want to know if I need to recalibrate my PH Probe and how often? Thank you in Advance
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