Portable pH and residual chlorine tester for accurate monitoring of spa and pool water conditions. Designed to give clear, repeatable readings so you can manage chemical balance with confidence and reduce guesswork during routine maintenance. Key benefits Dualfunction testing: measures pH and residual chlorine in one handheld device so you can monitor the two most critical water parameters quickly. Portable and easy to use: compact form factor fits in a toolbox or poolside kit and is simple to operate during regular checks. Faster decision making: clear results let you decide when to adjust chemicals or schedule service, helping maintain consistent water conditions. Practical for multiple users: suitable for homeowners, pool service technicians, and facility staff who need reliable spot checks. What it does and how it helps Function: provides onsite measurement of pH level and residual chlorine to support routine water management. Compatibility: made for spa and pool water conditions, including residential pools, hot tubs, and commercial spa environments. Performance: delivers consistent, repeatable readings that reduce the need for trial and error when balancing water. Design and materials: compact, handheld construction built for regular poolside use and easy storage. Practical features Compact size for handheld use and convenient storage. Durable construction for repeated poolside testing. Clear readout for quick interpretation of results. Simple operation with minimal setup for routine checks. Use scenarios Weekly maintenance for a residential pool: perform quick pH and residual chlorine checks after weekend use to confirm water conditions and guide adjustments. Spa operator routine: run spot tests between guest sessions to maintain consistent water quality throughout the day. Pool service technician visit: verify treatment effectiveness after chemical dosing or shock treatments and record the status before leaving the site. Who this is for Homeowners who want routine assurance of pool and spa water conditions. Professional pool and spa technicians performing scheduled maintenance. Facility managers overseeing small commercial pools and spa installations. Reliable, portable testing for regular pool and spa maintenance without complicated setup.