Gecko 9920-400844 Hi-Limit Temperature Sensor – MP, SSPA & YE Systems

Don't let a faulty sensor take your spa out of commission. The Gecko 9920-400844 Hi-Limit Temperature Sensor is a genuine Gecko replacement sensor designed for MP, SSPA, and YE spa control systems, keeping your hot tub's temperature monitoring accurate and your safety protection working as it should. A direct replacement for several older Gecko sensor part numbers, making it a versatile and reliable fix for a wide range of Gecko-equipped spas. Available in-store and online at Splash Pool & Spa in Peterborough.

Features:
✔️ Genuine Gecko OEM replacement – Designed specifically for Gecko MP, SSPA, and YE control systems for a precise, factory-correct fit.
✔️ Hi-limit and temperature sensing – Monitors both water temperature and hi-limit safety thresholds, protecting your spa from overheating.
✔️ 10 ft cable length – Generous cable length for flexible routing and easy installation in a wide range of spa configurations.
✔️ Replaces multiple Gecko sensor part numbers – Direct replacement for 9920-400262, 9920-400326, 9920-400346, and 9920-400723, covering a broad range of Gecko-equipped spas manufactured after May 2003.
✔️ Easy to install – Plugs directly into compatible Gecko control systems with no modifications or additional hardware required.
✔️ Restores accurate temperature control – Replaces a failed or inaccurate sensor to get your spa reading and regulating temperature correctly again.

Specifications:

• Part Number / SKU: 9920-400844
• Brand: Gecko
• Compatible Systems: Gecko MP, SSPA, and YE spa control systems
• Cable Length: 10 ft
• Application: Hi-limit and temperature sensing
• Replaces: 9920-400262, 9920-400326, 9920-400346, 9920-400723
• Compatible With: Gecko-equipped spas manufactured after May 2003

For nearly 20 years, Splash Pool & Spa has been helping Peterborough and Kawartha spa owners diagnose issues and find the right replacement parts. Not sure if this sensor fits your spa? Stop by the store or reach out online and our team will help you confirm compatibility.