Dual Digital Thermostat Humidity Controller – HELTC 1210W

HELTC 1210W Dual Digital Temperature & Humidity Controller

Take precise control of your environment with the HELTC 1210W Dual Digital Thermostat & Humidity Controller. Whether you're managing an incubator, greenhouse, terrarium, fermentation chamber, or storage space, this compact and versatile unit lets you monitor and regulate both temperature and humidity simultaneously — all from a single device.

Why You'll Love It

• Dual Control in One Unit: Simultaneously manages temperature AND humidity, eliminating the need for separate controllers.
• Dual Display Window: View current measured values alongside your set target values at a glance — no guesswork required.
• Flexible Equipment Compatibility: Connect heating, cooling, humidifying, and dehumidifying equipment all at once for complete environmental control.
• Heating/Cooling Mode Protection: Independent heating and cooling function settings prevent sudden, damaging fluctuations in your controlled environment.
• Calibration Support: Built-in temperature and humidity calibration lets you fine-tune readings for maximum accuracy.
• Wide Voltage Compatibility: Works with AC 110–220V, DC 24V, and DC 12V — ideal for home, workshop, or off-grid setups.
• Wide Measurement Range: Measures temperature from -50°C to +110°C and humidity from 0% to 100% RH with high precision (±1°C / 0.1% RH).
• Durable Fireproof Housing: Made from PC + ABS fireproof material for safety and longevity.

Technical Specifications

How to Set Your Target Values

Set Startup Temperature/Humidity: Press the "Up" button once to display the starting value. Long-press "Up" for ~3 seconds until the number flashes, then use the Up/Down keys to dial in your desired value.

Set Stop Temperature/Humidity: Press the "Down" button once to display the stop value. Long-press "Down" for ~3 seconds until the number flashes, then adjust with the Up/Down keys.

Calibration: Press the "Up" and "Down" buttons simultaneously to enter calibration mode.

What's in the Box

• 1× HELTC 1210W Dual Thermostat & Humidity Controller

Made in Mainland China.

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For more information on electrical safety standards for consumer electronic products, visit the U.S. Consumer Product Safety Commission (CPSC).

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Frequently Asked Questions

Q: Can the HELTC 1210W controller manage both heating and cooling equipment at the same time?

A: Yes! The 1210W dual digital thermostat supports simultaneous connection to both heating and cooling devices. You can set independent startup and stop temperature thresholds for each function, protecting your environment from sharp, sudden temperature swings.

Q: What voltage inputs does this thermostat and humidity controller support?

A: This versatile controller is compatible with AC 110–220V, DC 12V, and DC 24V inputs, making it suitable for a wide range of applications including home setups, workshops, vehicles, and off-grid or battery-powered systems.

Q: Is this humidity and temperature controller suitable for use in an incubator or greenhouse?

A: Absolutely. The HELTC 1210W is designed for environments where precise temperature and humidity control is critical, such as egg incubators, plant greenhouses, terrariums, fermentation chambers, mushroom growing tents, and similar setups. Its wide measurement range (-50°C to +110°C; 0–100% RH) covers virtually all common applications.

Q: How accurate are the temperature and humidity readings?

A: The controller offers a temperature accuracy of ±1°C and a humidity accuracy of 0.1% RH. It also features a built-in calibration function, so you can fine-tune readings to match a reference instrument for even greater precision.