Gecko Hi Limit Sensor Probe 9920-400122: The Heart of Your Hot Tub’s Safety System

Introduction

As a dedicated hot tub enthusiast and spare parts supplier, I’m excited to introduce you to the Gecko Hi Limit Sensor Probe 9920-400122. This small but crucial component plays a vital role in maintaining the safety and optimal performance of your hot tub. Let me walk you through the features and benefits of this essential part.

What Is a Hi Limit Sensor Probe?

The Hi Limit Sensor Probe is a safety device designed to monitor the water temperature in your hot tub. It acts as a failsafe, preventing the water from overheating and ensuring a safe, enjoyable experience for you and your family.

Key Features

Versatile Compatibility

The Gecko Hi Limit Sensor Probe 9920-400122 is incredibly versatile, compatible with a wide range of hot tub brands and control systems. It’s commonly used with:

• Gecko control boxes
• Spa Builders systems
• Hydroquip control boxes

This sensor is a perfect fit for popular hot tub brands such as Arctic Spa, Coyote Spa, Dimension One, Sunrise, Hotspot, LA Spas, Artesian Spas, Gulf Coast, Inspirations, Hydrospa, and Southwest Spas, among others.

Easy Installation

Installing this sensor probe is straightforward:

1. The probe slides easily into the pocket on the heater tube.
2. The red flat plastic 4-pin plug (with 3 wires) connects directly to the PCB.

This simple design ensures a hassle-free replacement process, getting your hot tub back up and running quickly.

Durable Construction

Built to withstand the harsh environment of a hot tub, this sensor probe features:

• A robust 6 mm diameter probe
• A generous 305 mm (12 inch) cable length
• High-quality materials resistant to heat and moisture

Specifications Table

Specification	Detail
Product Type	Sensor Probe
Manufacturer	Gecko Hi Limit
Related Part Numbers	9920-40012220
Probe Diameter	6 mm
Cable Length	305 mm (12 inches)
Connector Type	Red flat plastic 4-pin plug (3 wires)
Compatible Systems	MSPA 1, 2, 4, and TSPA

Important Notes

• This probe is not compatible with Gecko SSPA systems or the Gecko MSPA Metapac (MP) series systems.
• It’s designed for use with MSPA systems coded as MSPA 1, MSPA 2, or MSPA 4, as well as TSPA systems.
• While the product image may show a different plug, this sensor comes with a red, 4-socket flat connector with 3 wires.
• Wire colors are typically black, green, and red, but may vary.

Why Choose This Sensor Probe?

1. Reliability: Manufactured by Gecko, a trusted name in hot tub components, this sensor probe offers consistent performance and accurate temperature readings.
2. Safety: By monitoring water temperature and preventing overheating, it helps protect both your hot tub and its users.
3. Wide Compatibility: Its versatility makes it an excellent choice for a variety of hot tub models and control systems.
4. Quality: Built with durable materials, this sensor probe is designed to withstand the demands of constant use in a hot tub environment.
5. Easy Replacement: The simple installation process means less downtime for your hot tub when you need to replace this part.

Conclusion

The Gecko Hi Limit Sensor Probe 9920-400122 is more than just a spare part – it’s an investment in the safety and longevity of your hot tub. By choosing this high-quality component, you’re ensuring that your hot tub continues to provide a safe and enjoyable experience for years to come.

Remember, regular maintenance and prompt replacement of crucial components like this sensor probe are key to keeping your hot tub in top condition. If you have any questions about compatibility or installation, don’t hesitate to reach out. Your safety and satisfaction are my top priorities.