probe

TLDR - where do you stick your thermostat probe? Display tank, sump, or back chamber? (Which chamber if the back?) and why? Hello, I have been reading through some threads and found that many people put their thermostat probes in the actual display tank instead of the sump or rear compartment...

Hi so I added a new automatic water changer and noticed when I put my hand in my tank I can feel a slight electrical charge. And if I have a cut then I can feel pain on the cut. I have used a multimeter and I have around 22 volts in the water. If I turn off the water changer I don’t feel the...

I have a Neptune magnetic probe holder. Asking : $20 + $5 shipping

Neptune apex classic. Works great and works with apex fusion app. Comes with controller, energy bar, ph probe (Milwaukee, less than 1 month old), temp probe, display and aquabus cable. $200 shipped.

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...

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

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!

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

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.

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

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?

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...

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?

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

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...

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...

Asking Price: $28 Delivered

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

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...

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...

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...

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...

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...

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...

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