Hanna Instruments HI98121 pH/ORP/Temperature Tester Kit
The HI98121 is a compact, handheld pH/ORP/temperature tester kit prized for its rugged probes and straightforward one-button calibration, making it a best-in-class portable verification tool for sensor probe and calibration workflows in hydrotherapy pumps and filtration systems. Compared with integrated OEM probe kits from Hayward and Pentair, Hanna’s advantage is low upfront cost and ease of field calibration, while offering more objective digital accuracy than colorimetric-only kits like the Taylor K-2006 for routine spot checks.
Three-in-one readout
Pocket-sized wizard
Three-in-one readout
Pocket-sized wizard
Review Summary
"Users praise the HI98121 for fast, accurate pH/ORP/temperature readings and a rugged kit that’s convenient for field use. Some report probe drift after months of use and occasional calibration headaches, but overall reliability is rated high."
Rapid field-calibration
Handheld meter measures pH, ORP and temperature in one compact unit.
Rapid field-calibration
Handheld meter measures pH, ORP and temperature in one compact unit.
Time-Saving Convenience
Skill Development & Mastery
The HI98121 is a compact, handheld pH/ORP/temperature tester kit prized for its rugged probes and straightforward one-button calibration, making it a best-in-class portable verification tool for sensor probe and calibration workflows in hydrotherapy pumps and filtration systems. Compared with integrated OEM probe kits from Hayward and Pentair, Hanna’s advantage is low upfront cost and ease of field calibration, while offering more objective digital accuracy than colorimetric-only kits like the Taylor K-2006 for routine spot checks.
Three-in-one readout
Pocket-sized wizard
Rapid field-calibration
Handheld meter measures pH, ORP and temperature in one compact unit.
Comes with electrode, calibration solutions and protective case for field calibration.
Three-in-one readout
Pocket-sized wizard
Rapid field-calibration
Handheld meter measures pH, ORP and temperature in one compact unit.
Comes with electrode, calibration solutions and protective case for field calibration.
$200-300 CAD
Taylor K-2006 Complete Pool Water Test Kit
The Taylor K-2006 is a comprehensive reagent-based test kit that remains the budget-friendly standard for multi-parameter checks in spa and hydrotherapy settings, offering broad chemical coverage without electronics. It’s especially useful as a low-cost backup and verification method against electronic probes (Hanna, LaMotte) or controller-integrated sensors (Hayward, Pentair), though it lacks the precision and logging convenience of digital meters and automated calibration workflows.
Comprehensive reagents
Pro-grade accuracy
Comprehensive reagents
Pro-grade accuracy
Review Summary
"Owners call the Taylor K-2006 a professional-grade, highly accurate and comprehensive test kit with durable reagents and a sturdy case. It has a learning curve, is bulkier than drop-test kits, and ongoing reagent costs are commonly noted."
Classic colorwheel fun
Classic titration and reagent kit covers chlorine, bromine, pH and alkalinity for pool/spa chemistry.
Classic colorwheel fun
Classic titration and reagent kit covers chlorine, bromine, pH and alkalinity for pool/spa chemistry.
Skill Development & Mastery
Time-Saving Convenience
The Taylor K-2006 is a comprehensive reagent-based test kit that remains the budget-friendly standard for multi-parameter checks in spa and hydrotherapy settings, offering broad chemical coverage without electronics. It’s especially useful as a low-cost backup and verification method against electronic probes (Hanna, LaMotte) or controller-integrated sensors (Hayward, Pentair), though it lacks the precision and logging convenience of digital meters and automated calibration workflows.
Comprehensive reagents
Pro-grade accuracy
Classic colorwheel fun
Classic titration and reagent kit covers chlorine, bromine, pH and alkalinity for pool/spa chemistry.
No electronics — reliable for backup checks and verification of probe readings.
Comprehensive reagents
Pro-grade accuracy
Classic colorwheel fun
Classic titration and reagent kit covers chlorine, bromine, pH and alkalinity for pool/spa chemistry.
No electronics — reliable for backup checks and verification of probe readings.
LaMotte ColorQ Pro 7 Digital Pool Water Test Kit
The LaMotte ColorQ Pro 7 is a portable digital colorimeter providing lab-grade, multi-parameter readings and traceable calibration options, making it a top choice for facilities that need precise documentation for hydrotherapy pump and filtration compliance. While it costs more than reagent kits like the Taylor, it outperforms many handheld competitors (including Hanna) in repeatability and parameter range, and serves as a strong middle ground between simple field testers and fully integrated controller probe systems.
Digital precision
Seven-parameter clarity
Digital precision
Seven-parameter clarity
Review Summary
"Customers like the LaMotte ColorQ Pro 7 for lab-quality digital readings and repeatability compared with manual color tests. Complaints focus on the higher price, reagent costs, and occasional inconsistent readings that require re-testing."
Lab-grade swagger
Photometer-style digital reader delivers accurate colorimetric readings across seven parameters.
Lab-grade swagger
Photometer-style digital reader delivers accurate colorimetric readings across seven parameters.
Enhanced Physical Well-Being
Skill Development & Mastery
Time-Saving Convenience
The LaMotte ColorQ Pro 7 is a portable digital colorimeter providing lab-grade, multi-parameter readings and traceable calibration options, making it a top choice for facilities that need precise documentation for hydrotherapy pump and filtration compliance. While it costs more than reagent kits like the Taylor, it outperforms many handheld competitors (including Hanna) in repeatability and parameter range, and serves as a strong middle ground between simple field testers and fully integrated controller probe systems.
Digital precision
Seven-parameter clarity
Lab-grade swagger
Photometer-style digital reader delivers accurate colorimetric readings across seven parameters.
Includes reagents and a calibration routine to validate sensors and controller probes.
Digital precision
Seven-parameter clarity
Lab-grade swagger
Photometer-style digital reader delivers accurate colorimetric readings across seven parameters.
Includes reagents and a calibration routine to validate sensors and controller probes.
$400-600 CAD
Hayward Goldline AQL-CHEM2-PROBE ORP/pH Sensor Kit
Hayward’s Goldline AQL-CHEM2-PROBE is an OEM-grade ORP/pH sensor kit engineered for seamless integration with pool and spa automation, excelling in durability and compatibility with hydrotherapy pump control loops and filtration systems. Unlike handheld testers, this kit is designed to minimize manual calibration events and service time—offering a higher initial investment than Taylor or Hanna but delivering lower operational labor and more reliable automated chemical control compared to non-integrated meters.
Controller-ready fit
Durable sensors
Controller-ready fit
Durable sensors
Review Summary
"Pool professionals appreciate the Hayward Goldline AQL-CHEM2-PROBE for OEM compatibility and straightforward installation with Hayward automation. Several users report limited sensor lifespan, calibration stability issues over time, and relatively high replacement costs."
Pool pros' secret
OEM replacement probe designed for Goldline/Aquarite chemical controllers in pool and spa systems.
Pool pros' secret
OEM replacement probe designed for Goldline/Aquarite chemical controllers in pool and spa systems.
Time-Saving Convenience
Enhanced Physical Well-Being
Hayward’s Goldline AQL-CHEM2-PROBE is an OEM-grade ORP/pH sensor kit engineered for seamless integration with pool and spa automation, excelling in durability and compatibility with hydrotherapy pump control loops and filtration systems. Unlike handheld testers, this kit is designed to minimize manual calibration events and service time—offering a higher initial investment than Taylor or Hanna but delivering lower operational labor and more reliable automated chemical control compared to non-integrated meters.
Controller-ready fit
Durable sensors
Pool pros' secret
OEM replacement probe designed for Goldline/Aquarite chemical controllers in pool and spa systems.
Pre-wired probe assembly simplifies installation on hydrotherapy pumps and filtration units.
Controller-ready fit
Durable sensors
Pool pros' secret
OEM replacement probe designed for Goldline/Aquarite chemical controllers in pool and spa systems.
Pre-wired probe assembly simplifies installation on hydrotherapy pumps and filtration units.
$300-500 CAD
Pentair IntelliChem Controller Probe Kit 521366
The Pentair IntelliChem probe kit is a market-leading, controller-integrated sensor solution built for automated chemical management in commercial and therapeutic aquatic systems, optimizing dosing accuracy and reducing chemical waste in filtration loops. Although it sits at the premium end of the price scale relative to handhelds and reagent kits, its deep integration, remote diagnostics and reduced maintenance make it financially compelling for facilities that prioritize continuous automated control over periodic manual calibration.
OEM compatibility
Automated dosing
OEM compatibility
Automated dosing
Review Summary
"Users report the Pentair IntelliChem 521366 integrates reliably with Pentair controllers and provides accurate continuous monitoring when installed and maintained correctly. Common downsides are the high replacement price and the need for periodic calibration or sensor replacement in aggressive water conditions."
Brainy helper
Designed specifically for Pentair IntelliChem controllers to monitor pH and ORP in real time.
Brainy helper
Designed specifically for Pentair IntelliChem controllers to monitor pH and ORP in real time.
Time-Saving Convenience
Enhanced Physical Well-Being
Eco-Friendly Living
The Pentair IntelliChem probe kit is a market-leading, controller-integrated sensor solution built for automated chemical management in commercial and therapeutic aquatic systems, optimizing dosing accuracy and reducing chemical waste in filtration loops. Although it sits at the premium end of the price scale relative to handhelds and reagent kits, its deep integration, remote diagnostics and reduced maintenance make it financially compelling for facilities that prioritize continuous automated control over periodic manual calibration.
OEM compatibility
Automated dosing
Brainy helper
Designed specifically for Pentair IntelliChem controllers to monitor pH and ORP in real time.
Factory-matched sensors and calibration solutions reduce downtime during maintenance.
OEM compatibility
Automated dosing
Brainy helper
Designed specifically for Pentair IntelliChem controllers to monitor pH and ORP in real time.
Factory-matched sensors and calibration solutions reduce downtime during maintenance.
$400-700 CAD