Sub-GHz vs 2.4G: Which is the Ideal Choice for Smart Home Security?

In the realm of smart home security, the stability of wireless connectivity directly determines protection effectiveness. When the 2.4GHz band frequently fails due to limited coverage, poor wall penetration, and severe interference, Sub-GHz technology emerges as the preferred solution for complex scenarios through its unique advantages. Heiman's Sub-GHz Home Security Solution maximizes the core value of this technology, establishing a robust connectivity foundation for both residential and commercial environments.

Core Difference: Why is Sub-GHz More Suited for Security Needs?

Sub-GHz refers to ISM bands operating below 1GHz (such as 433/868/915MHz). Compared to the 2.4GHz band, it features longer wavelengths and lower signal attenuation, inherently offering three core advantages. First, strong penetration capability. It maintains 99.7% signal stability even through three layers of concrete walls, completely resolving signal dead zones in corners of large homes like villas and duplexes without requiring additional relay equipment. Second, superior interference resistance. The 2.4GHz band is heavily occupied by WiFi, Bluetooth, and other devices, prone to congestion. In contrast, the Sub-GHz band sees far less usage, and its narrowband mode further reduces interference probability. Third, low power consumption. It achieves equivalent coverage with significantly lower transmission power. sensors can operate reliably for years on just a button battery, perfectly suited for security devices requiring 24/7 uninterrupted operation.

heiman sub-ghz Products: Targeted Solutions for Security Pain Points

With over 20 years of expertise in security sensing, Heiman has deeply integrated Sub-GHz technology with a full range of security devices, launching series products including smoke alarms, gas detectors, and door/window sensors. For residential settings, these devices provide comprehensive coverage from basement to attic. Upon detecting fires, gas leaks, or other anomalies, signals rapidly penetrate walls to reach control terminals, triggering immediate alerts. In commercial environments, their interference resistance ensures stable operation within large-scale sensor networks—ideal for office buildings, hotels, and other multi-device spaces.

Selecting Wireless Security technology hinges on matching scenario requirements. For users prioritizing seamless coverage and low maintenance costs, Heiman's Sub-GHz products offer a more reliable alternative to 2.4G devices, delivering security connectivity that is truly “rock-solid.”