Free Shipping On Orders $49+

Split-Pay & Financing Available

Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS

SKU: 653078004540
$6.85

Shipping & Returns

Free Shipping On Orders Over $49
All orders over $49.00 ship free using a combination of USPS, FedEx and UPS. All in stock items will ship out within 24-48 hours Monday-Friday. Drop ship items such as large aquariums, large sumps and full aquarium systems can take 1-2 weeks to arrive depending on availability. This shipping offer is only available in the 48 contiguous US. Not valid on wholesale orders.

$7.99 Flat Rate Shipping On Orders Under $49
If your order is under $49.00 shipping is only $7.99 using a combination of USPS, FedEx & UPS. All in stock items will ship out within 24-48 hours Monday-Friday. This shipping offer is only available in the 48 contiguous US. Not valid on wholesale orders.

Drop Shipping
There are a few items that are drop shipped directly from the manufacturer. Any item that drop ships will be marked on the product page. Large items like aquariums, stands, and lights may take anywhere from 1-3 weeks for final delivery.

Returns
We're happy to accept returns of new products in their original packaging within 60 days of original purchase for a full refund. Just give us a call or send us an email, you must receive an RMA number before shipping back your products. Returns received without an RMA number will be refused and sent back.

Returned items must be sent back to us in new and unused condition in the original packaging along with all accessories, warranty cards, manuals, software, cables, etc.

Special order items are non returnable and are marked on the items page.

Returns For Unused Open Box Products
Hold on to your packaging! If you purchased a product in the last 30 days that's opened but unused, has never seen saltwater and still has all of its original packaging (warranty cards, manuals, accessories, etc.) we can accept your return and offer a refund to your original form of payment minus a small 10% restocking fee.

  • Products must be returned in the original packaging. Products returned with broken manufacturer seals, damaged or altered packaging, missing packing material, warranty cards, manuals and/or accessories will be treated as an unused but open item.
  • Items purchased as new but have been opened and received more than 30 days after the original purchase will be returned to you free of charge.
  • Items that show any sign of exposure to water or use, returned with damaged or altered packaging or missing packing material including warranty cards, manuals and accessories are not eligible for return and will be returned to you free of charge.
  • All items sold under clearance, blowout, or liquidation are final and not eligible for return.

Manufacturer Defects & Warranties
Sometimes items just don't work out of the box, contact us and we'll work with you to make it right!

If your product arrives non-functional due to manufacturer defects, it may be exchanged for the same product within 30 days at no cost to you!

Purchased more than 30 days ago, but need warranty support? We'll ensure your issue is handled fast and efficiently by acting as the first point of contact. We'll introduce you to the best contact at the manufacturer, and make sure the manufacturer knows of the issue you're encountering!

Please Note:

  • Shipping & Delivery fees are non-refundable.
  • Gift Cards are non-refundable.
  • Return shipping may be deducted from your refund.
  • Please retain all product packaging and tags until you are completely satisfied with your purchase.
  • Please open all packages and inspect all items for damage immediately upon arrival. Damages must be reported within 3 days of the reported delivery.

Over the course of a few months, it is common for probes to drift and they should be recalibrated when that occurs. The Neptune Systems Probe Calibration Kit includes everything you need to calibrate your pH probe and salinity probe for reef tank conditions. The single-use packets make calibration procedures easy and only requires clean water to rinse the probe between calibrations. Neptune Systems uses only quality ingredients when producing their calibration solutions ensuring accuracy.


pH Probe Calibration

If you have a single junction or a double junction pH probe, you can use the pH 7.0 and 10.0 calibration solution packets. Most controllers will require a two-point calibration method that lets you calibrate the probe on each side of the range you will be reading allowing it to be correct anywhere in the middle of the two values. Just tear the top off and place your probe in the packet for a minute or so and follow the calibration directions for your controller.


Salinity/Conductivity Calibration

Neptune Systems Conductivity Probes require 53,000µs for calibration, as do many others. The single-use packet has contains a stable solution that replicates 35ppt as a conductivity solution making it perfect for reef tanks.


Kit Includes


  • 1x Packet of 7.0 pH Calibration Solution
  • 1x Packet of 10.0 pH Calibration Solution
  • 1x Packet of 53,000µs Salinity Probe Calibration Solution