Electronic Testers

Electronic Testers

2 products

  • Digital Salt Meter, Hayward Aqua-Rite/Trol/Logic

    Digital Salt Meter, Hayward Aqua-Rite/Trol/Logic

    Digital Salt Meter, Hayward Aqua-Rite/Trol/Logic

    Hayward Pool Products

    SKU: PST-99-150-1000
    MPN: GLX-SALTMETER
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110796800065","mpn":"GLX-SALTMETER","warehouselocations":"Bloomfield, CT | Murray, UT","warranty":"12 Months"}
    $298.80
    $461.50 $298.80
  • Digital Test Meter, Solaxx SafeDip, 6 in 1

    Digital Test Meter, Solaxx SafeDip, 6 in 1

    Digital Test Meter, Solaxx SafeDip, 6 in 1

    Solaxx

    SKU: PST-42-344-1000
    MPN: MET20A
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 28570.0 Website Price Number: 28570.0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110487404609","discontinued":false,"mpn":"MET20A","saleprice":"0","warehouselocations":"Tucson, AZ | Murray, UT","warranty":"12 Months","websiteprice":"285.7"}
    $291.90
    $450.80 $291.90
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Electronic Swimming Pool Water Testers

Get fast, accurate water chemistry readings with electronic pool water testers that eliminate the guesswork of liquid reagent kits and the imprecision of test strips. PST Pool Supplies stocks professional-grade digital pool testers from Hayward and Solaxx — designed for both residential and commercial pool and spa applications where reliable water chemistry data is essential.

The Hayward Digital Salt Meter is an essential diagnostic tool for any pool running a salt chlorine generator (Hayward Aqua-Rite, Aqua-Trol, or OmniLogic). Salt generators require precise salt concentration — typically 2,700–3,400 ppm — to generate chlorine effectively. Too little salt causes the cell to underperform; too much can trigger error codes and reduce cell lifespan. The Hayward salt meter delivers precise, instant salt readings via digital display, eliminating the trial-and-error of adding and re-testing salt over multiple days. The Solaxx SafeDip 6-in-1 Digital Tester takes a broader approach — it simultaneously measures free chlorine, total chlorine, pH, ORP, temperature, and TDS (total dissolved solids) in a single dip, giving pool and spa owners a complete water chemistry snapshot in seconds. For reagent-based test kits and test strips, see our test kits and reagents collection. The National Swimming Pool Foundation recommends testing pool water at minimum twice per week during the swim season.

Electronic testers provide a significant accuracy advantage over test strips, which are subject to user interpretation of color gradients and can degrade with age and moisture exposure. Digital meters return objective numerical readings that are not dependent on color perception. For salt systems in particular, a dedicated salt meter pays for itself quickly in salt savings alone — a single accurate reading avoids adding 40–60 lb bags of salt unnecessarily. Calibrate electronic testers per manufacturer instructions (typically monthly or after extended storage) to maintain measurement accuracy. Keep the sensor tip clean and free from scale or chemical buildup between uses. For complete water chemistry management, pair electronic testers with our pool chemicals collection.

Shop electronic pool water testers and take the guesswork out of water chemistry with precise, professional-grade digital readings.

Frequently Asked Questions

Are electronic pool water testers more accurate than test strips?
Yes — electronic digital testers are significantly more accurate than test strips for most parameters. Test strips require visual color comparison against a printed chart, which is subject to lighting conditions, color perception differences, and strip age/moisture degradation. Digital testers return an objective numerical reading independent of user interpretation. For salt levels, a digital salt meter is the only reliable method for precise ppm readings — test strips that claim to test salt are only approximate indicators. For chlorine and pH, the Solaxx SafeDip digital meter delivers laboratory-grade accuracy suitable for both residential and commercial applications. The tradeoff is cost and maintenance: electronic testers require periodic calibration and careful handling, while test strips are disposable and require no maintenance.
How do I use the Hayward Digital Salt Meter?
Using the Hayward Digital Salt Meter is straightforward: collect a water sample from elbow-depth (18") in the pool, away from return jets and skimmer openings. Dip the meter's sensor probe into the sample, wait for the reading to stabilize (usually 3–5 seconds), and read the salt level in ppm from the digital display. The target range for Hayward Aqua-Rite and Aqua-Trol generators is 2,700–3,400 ppm, with 3,200 ppm as the ideal operating level. If salt is low, add pool-grade NaCl salt per the calculator on the Hayward app or salt bag label. Rinse the probe with clean water after each use and store with the protective cap on. Calibrate the meter monthly using the calibration solution per the manual to maintain accuracy — probe readings drift slightly over time.
What does the Solaxx SafeDip 6-in-1 measure?
The Solaxx SafeDip measures six key water quality parameters in a single dip: Free Chlorine (sanitizer level — target 1–3 ppm for pools), Total Chlorine (combined + free chlorine), pH (target 7.2–7.8), ORP (oxidation-reduction potential, a direct measure of sanitizer effectiveness — target 650–750 mV), Water Temperature (°C/°F), and TDS (total dissolved solids, a general indicator of water freshness — levels above 1,500 ppm above fill water suggest it's time to partially drain and refill). This comprehensive reading replaces five or six separate test procedures with a single measurement, making it especially practical for spa owners and service professionals who need a full water snapshot quickly.
How often should I test my pool water with an electronic tester?
For residential pools, test water chemistry at minimum twice per week during the active swim season — more frequently during periods of heavy use, hot weather, after rain events, or following chemical additions. For salt pool owners, test salt level once per week during the season (salt is consumed slowly and doesn't need daily testing unless you're troubleshooting an error code). After closing and reopening the pool, test and balance all parameters before swimmers enter. For spas and hot tubs, the NSPF recommends testing before each use due to the small water volume and high bather-to-water ratio — spa chemistry can shift dramatically within 24 hours. Keep a log of your readings to spot trends in pH drift, chlorine consumption, and salt depletion over time.