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Extech EC505 ExStik Replacement pH Electrode/Conductivity Cell Module for Extech EC500

4.3 (9) Write Review
Free shipping on orders over $29.99

$95.54

$ 45 .99 $45.99

In Stock

1.Style:Ec-84-p


About this item

  • Combination flat surface pH electrode/conductivity cell for ExStik conductivity meters
  • Easy to clean, rugged flat surface pH electrode/conductivity cell module
  • Measures conductivity, TDS, salinity, pH and temperature
  • Non-interchangeable with ExStik pH, Chlorine or ORP meter
  • Complete with protective connector cap


Product Description

The EC505 is an ExStik® Replacement pH Electrode/Conductivity Cell Module. For use with the Extech EC500 Waterproof ExStik® II pH/Conductivity Meter. Measures conductivity, TDS, salinity, pH and temperature. Comes with a year warranty.

From the Manufacturer

ExStik Replacement pH Electrode/Conductivity Cell Module for Extech EC500


Winfield Hill
2025-08-17 12:46:38
Quick delivery, nice quantity of super-useful conductivity calibration standard. Hey, it's way easier than preparing your own 0.01M KCL solution (bake and desiccator-dry 1.4192 g of KCl, dissolve and mix in 2 liters of high-quality DI water, save in a proper, labeled container)!
José Avendaño
2025-07-15 14:36:23
I bought this replacement part for my EC400 conductivity meter and it works great. The previous probe was broken and not calibrated. Just be careful when you install it because the probe is brittle.
Customer
2025-07-13 19:36:57
Didn't really work with the meter
Octavio Motta
2025-05-20 09:57:42
It work as expected.
Andrew A. Keller
2025-04-21 13:03:44
This replacement worked perfectly. I would give it five stars except that I don't think the conductivity cell should have failed in the first place as quickly as it did (after 2 years of light, intermittent use).
Tezcatlipoca
2025-02-07 13:02:49
As described. Great value for calibrating my Hanna Instruments dual pH/EC meter.
Crimson Chemicals
2025-01-26 21:02:38
Exactly as described.
Walt Handy
2024-12-26 13:02:49
I made the mistake of trying to put a larger sponge inside the cap and damaged the original. Replacement works great!
P’trick Booket
2024-12-01 16:03:55
Cette sonde a fonctionné pour une vingtaine de mesures (utilisée tous les 3 ou 4 jours dans mon aquarium), puis, depuis quelques temps, elle donne des mesures erronées. Il n’est plus possible de faire l’étalonnage en pH en dessous de 10, malgré un nettoyage avec le produit spécifique et le stockage dans la solution adaptée. La précédente m’a durée plusieurs années dans les conditions dans lesquelles je l’utilise. Elle est étalonnée, nettoyée et stockée dans les règles, avec les solutions spécifiques (achetées avec mon régulateur de pH et CO2 JBL), il n’est pas normal que cette sonde ne dure pas, vu le prix qu’elle coûte.