Waterproof Smart Wi-Fi Pool Heater Controller & Remote Thermostat — DIN500-N

Upgrade your pool heater, spa heater, or heat pump with the DIN500-N Waterproof Smart Wi-Fi Pool Heater Controller, a smart remote thermostat designed to give you convenient control from your smartphone. Instead of investing in expensive proprietary pool automation systems, the DIN500-N allows you to turn your heater ON or OFF, monitor water temperature, and manage heating schedules through the app.

The DIN500-N is designed to control a wide range of compatible heating equipment, including many gas pool heaters, millivolt heaters, electric heat pumps, spa heaters, and popular systems from brands such as Pentair, Hayward, Jandy, Raypak, and others, depending on the heater’s control design.

This controller is ideal for pool owners, spa users, vacation homes, rental properties, and anyone who wants to preheat water before arrival. Whether you want to warm up your spa before coming home or schedule your pool heater to run only on selected days, the DIN500-N gives you practical smart control while helping reduce unnecessary heater runtime.

Use Manual Mode for instant ON/OFF control, or switch to Automatic Mode to control heating based on your selected temperature set point and hysteresis range. The controller monitors real-time temperature and automatically activates or stops the heater according to your settings.

Designed for flexible installation, the DIN500-N uses a 2-wire, no-voltage, no-polarity switching connection. These control wires act like a simple dry-contact switch, helping protect the heater’s control board while allowing connection to compatible remote control, fireman switch, or thermostat circuits. On many newer gas heaters, it can connect to the 2-wire remote/fireman switch input. On some older heater systems, it may be used to replace or bypass a mechanical thermostat, depending on the heater design.

The app provides advanced control features, including scheduled timers, delayed start/stop, cyclic timer tasks, temperature calibration, high and low temperature alarms, manual switching, inching/countdown timer, buzzer control, and emergency stop. The included temperature sensor comes with a 1/4 NPT sensor holder, commonly suitable for heater inlet drain plug installation or other properly prepared inlet pipe locations.

With its waterproof enclosure, smart Wi-Fi control, wide temperature range, and professional scheduling features, the DIN500-N is a practical solution for modern pool, spa, and heat pump automation.

Key Features

Control from Anywhere
Manage your pool heater, spa heater, or heat pump remotely using the free app, available for Android and iOS.

Manual and Automatic Temperature Control
Use Manual Mode for direct ON/OFF control, or Automatic Mode to control heating based on your selected temperature set point and hysteresis range.

Professional App Functions
Set up scheduled start/stop times, delayed tasks, cyclic timer tasks, inching/countdown timer, temperature calibration, high and low temperature alarms, manual switching, buzzer control, and emergency stop.

Voice Assistant Compatible
Compatible with smart home platforms such as Amazon Alexa, Google Assistant, and other supported integrations for convenient voice-based ON/OFF control.

Share Control with Family Members
Share device access with multiple smartphones, making it easy for family members or property managers to control the heater when needed.

Universal 2-Wire Dry-Contact Control
The DIN500-N uses two no-voltage, no-polarity control wires that act as a simple switch. This makes it suitable for many compatible heaters with remote/fireman switch inputs or thermostat control circuits.

Waterproof Outdoor Enclosure
The controller is housed in a waterproof box with a visible front window, making it suitable for protected outdoor installations.

Installation & Specifications

Power Supply Voltage
Available for 120VAC North America or 220V EU/international power supply versions.

Output Current
Maximum output current: 20A.

Temperature Range
Measures from -30°C to 300°C / -22°F to 572°F.

Sensor Fitting
Includes a plastic sensor holder with standard 1/4 NPT threading, commonly compatible with many heater inlet drain plug locations.

Cable Length
The temperature sensor cable and control wire are each approximately 3 meters long, allowing flexible installation placement.

Outdoor Installation
The DIN500-N can be installed outdoors inside its waterproof enclosure. Keep the sensor and controller away from direct heat sources and unnecessary weather exposure whenever possible.

Wi-Fi Requirement
Requires a standard Wi-Fi network for setup. 

Safety Note
Always turn off power before wiring. Follow local electrical codes and the heater manufacturer’s manual. If you are unsure about installation, hire a qualified technician or electrician. Please consider that the controller works with 12VDC and the output is dry contact with no voltage, so it will be safe for wiring of pool heater. 

Manual