Jandy Ji/AquaLink® 4-Wire Temperature Sensor Kit || 4019+

Jandy Ji/AquaLink® 4-Wire Temperature Sensor Kit || 4019+

Jandy Ji/AquaLink® 4-Wire Temperature Sensor Kit | SKU: 4019+

Accurate, Reliable Temperature Monitoring for Your AquaLink® System – Available Now at ePoolSupply.com

🔥 Product Overview

The Jandy Ji/AquaLink® 4-Wire Temperature Sensor Kit (4019+) is an essential replacement part designed for precision temperature detection in AquaLink® pool and spa automation systems. Whether you're monitoring pool water, spa water, or air temperature, this OEM sensor ensures consistent and accurate readings to optimize heater function and maintain user comfort.

Engineered by Jandy—one of the most trusted names in pool automation—this 4-wire sensor kit is the gold standard for system reliability and longevity. It’s compatible with all Ji and AquaLink RS systems using 4-wire sensor configurations.

✅ Key Features & Benefits

• Brand: Jandy

• Model Number: 4019+

• UPC Code: 052337055802

• Application: Accurate temperature sensing for pool, spa, or ambient air

• Compatible With: Ji and AquaLink® RS control systems using 4-wire sensors

• Compact and Lightweight for easy installation and handling

• OEM Part – Designed specifically for Jandy systems to ensure optimal performance

• Durable Build – Built to withstand poolside environments and harsh conditions

⚡ Electrical & Technical Info

• Sensor Type: Thermistor-based 4-wire temperature sensor

• Voltage Rating: Low-voltage compatible

• Signal Transmission: Delivers accurate, real-time temperature feedback to the control panel

• Installation Cable Length: Typically compatible with 10–25 ft extensions (check system manual)

🛠 Installation Tips

• Power off the AquaLink system before replacing or installing the sensor

• Install into the existing sensor port or plumbing manifold as directed

• Use waterproof silicone when sealing to prevent corrosion and ensure sensor accuracy

• Ensure proper wire connection to the temperature input terminals on the board

• For air temperature applications, mount the sensor in a shaded, ventilated location

💡 Tip: If you're experiencing erratic heater behavior or inaccurate temperature readings, replacing this sensor is a smart and affordable fix.

📜 Product Background

Jandy has led the pool automation industry for decades with its AquaLink RS system. The 4019+ 4-Wire Temperature Sensor Kit is a legacy-compatible solution originally released to support advanced automation and heater feedback features. Its durable design and compatibility with a wide range of AquaLink configurations have made it one of the most commonly installed aftermarket replacement sensors.

🛒 Why Buy from ePoolSupply.com?

• 💯 Genuine Jandy OEM Parts – No knockoffs, ever

• 🚚 Fast Shipping – Same-day fulfillment on most orders

• 📞 Friendly, Knowledgeable Staff – Pool professionals ready to assist

• ⭐ 5-Star Customer Satisfaction – Trusted by pool owners nationwide

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