Arctic Spas ONZ-100370 Arctic Spa Boy ORP & pH Probe

OEM replacement dual sensor for Arctic Spas SpaBoy control systems providing pH and ORP monitoring for accurate spa water chemistry. This direct replacement is intended for use with compatible Arctic Spas controllers and helps maintain balanced water and sanitizer effectiveness.

• Key benefits: Fast response for reliable water chemistry readings, reduces false dosing by automated treatment systems, and restores accurate sensor feedback.
• Compatibility: Confirm compatibility with your spa control module using OEM part number ONZ-100370 or your spa serial number. This sensor is designed for Arctic Spas SpaBoy systems that use a combined pH and ORP probe.
• Maintenance and care: Clean deposits with a probe cleaning solution or mild acid cleaner designed for sensors. Do not scrape the sensing surfaces.
• Installation notes: Replace the sensor when readings become unstable or response time slows. Power down the spa control before disconnecting the probe. Route the cable to avoid kinks and use the original connector to ensure a secure electrical connection.
• What is included: One dual pH and ORP sensor assembly ready for installation.
• Performance tips: For best results on 2020+ Spas (Black Topside Control), calibrate the pH channel at two points and check ORP against a known reference to calibrate. For Pre-2020 spas, calibration is unfortunately not possible. Store spare probes with the tip wet in a protective cap if available.
• Support: For fit confirmation and technical support contact Arctic Spas parts support or your service provider and provide part number ONZ-100370 and your spa serial number.

This replacement sensor helps maintain water balance and reliable sanitizer control for safer, clearer spa water. Replace sensors proactively to avoid automated dosing errors and reduced sanitizer performance.