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❄️ Stay Frost-Free, Stress-Free — The Smart Thermostat Outlet You Can’t Afford to Miss!
The HEATIT ET-21 Freeze Protection Thermostat Outlet is a smart, energy-efficient device designed to automatically activate heating below 38°F and deactivate at 50°F. Ideal for protecting pipes, roofs, and equipment from freezing, it supports up to 15 amps, features a clear LED indicator, and offers easy plug-in installation. Its durable, weather-resistant design suits both indoor and outdoor use, backed by a 2-year warranty for reliable freeze protection.



































| ASIN | B074HVYDV1 |
| Best Sellers Rank | #7,018 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Temperature Controllers |
| Brand Name | HEATIT |
| Color | ET-21 |
| Customer Reviews | 4.3 4.3 out of 5 stars (4,537) |
| Display Type | led or lcd |
| Included Components | NO |
| Item Highlight | For roof deicing and pipe heating cable, grounded outlet, durable weather-resistant housing, indoor/outdoor use |
| Manufacturer | HEATIT |
| Material Type | Plastic |
| Model | ET-21 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operating Temperature | 38 °F |
| Part Number | 43551-106081 |
| Unit Count | 1 Count |
| Voltage | 120 volts |
| Warranty Description | 2 years warranty |
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