Overview
The LaMotte 2111-01 is a colorimetric pH test kit designed for accurate water quality analysis. Using the Cresol Red indicator method with the Octa-Slide 2 Comparator, this kit measures pH levels between 7.2 and 8.6—the typical range for pool, spa, and potable water applications. LaMotte’s heritage as a trusted water testing manufacturer since 1919 ensures reliability and precision in every measurement.
Key Features
- Colorimetric Cresol Red method for pH measurement
- Octa-Slide 2 Comparator for easy color matching
- pH range: 7.2–8.6
- Compact, portable design for field or poolside use
- Simple, no-equipment-required testing procedure
- Ideal for maintaining water quality in pools, spas, and water treatment
Technical Specifications
- Manufacturer: LaMotte Chemical Products Company
- Model Number: 2111-01
- Test Method: Colorimetric (Cresol Red)
- pH Range: 7.2–8.6
- Comparator Type: Octa-Slide 2
- Application: Water quality, pool and spa testing
Typical Applications
- Swimming pool and spa pH monitoring
- Potable water quality verification
- Water treatment facility testing
- Recreational water testing compliance
- Industrial water system maintenance
Compatibility & Replacements
Compatible With
- LaMotte Octa-Slide 2 Comparator systems
- Standard laboratory test tube kits
- Water quality monitoring protocols for pH 7.2–8.6 range
- Pool and spa maintenance procedures
Replaces / Drop-In Replacement For
- Older LaMotte colorimetric pH kits in the 7.2–8.6 range
- Generic Cresol Red pH comparison test kits for similar pH ranges
- Verify compatibility with your specific testing requirements before ordering
Works With
- LaMotte test tube and reagent systems
- Standard water testing protocols and regulatory compliance frameworks
- Field testing and laboratory environments


















