Kidde SM120X Smoke Relay Module Review Best Interconnect Accessories for Fire Safety

Description

Highlights of the Kidde SM120X Interconnect Accessories Smoke Relay Module

Having worked with various fire safety devices over time, I find the Kidde SM120X Interconnect Accessories Smoke Relay Module to be a notable addition to interconnected alarm systems. This relay module switches connected device power immediately when a smoke or heat interconnect signal is received, which is crucial for timely alerts. It offers an internal power supply compatible with manual pull stations, flow switches, and spot-type heat detectors, making it versatile in how it integrates with other safety devices. The fact that it supports multiple station alarms and detectors specifically with Kidde fyrnetics devices ensures a seamless network of alarms in larger settings like homes or offices.

The relay module comes with 10-inch long 18-gauge pigtail leads, which made installation straightforward in my experience. The test/reset button is a functional feature I appreciated, allowing me to verify system readiness without having to disconnect power. This module is compact and lightweight, weighing only about 1.6 ounces, which means it doesn’t add bulk inside the fire alarm control panels or junction boxes.

Downsides That Might Affect Some Users

Despite its strengths, a few issues stood out during testing. The module’s compatibility is mainly limited to Kidde fyrnetics devices, which could be a hassle if you have mixed-brand alarms or detectors. This restriction limits flexibility for some homeowners or businesses with diverse systems. Additionally, the power source requires a 120 VAC, 60 Hz supply drawing 0.08 amps, which might complicate integration in setups with different voltage standards or power limitations.

Installation might be straightforward for someone familiar with electrical wiring, but novices could be intimidated by the need to handle 18-gauge wiring and ensure proper connectivity for the relay to function as intended. The product also doesn’t include batteries or a backup power source, so it relies entirely on the main power supply, which might be a concern in power outages unless paired with a UPS or backup system.

Design and Build Quality

The physical design of this relay module is practical and focused on function over form. Measuring roughly 7 x 14 x 7 inches, it’s not exactly tiny but still manageable for most alarm system enclosures. I liked that it’s wired rather than wireless, adding a layer of reliability that wireless devices sometimes lack, especially in critical safety equipment. The built-in test/reset button is a user-friendly touch, making it easier to maintain and troubleshoot the system without special tools.

It felt sturdy enough to withstand the rigors of installation and daily operation. The module’s weight is minimal, which means it doesn’t place undue strain on mounting points. However, the length of the pigtail leads might not be sufficient for some complex setups, requiring additional wiring or extension, so planning the layout beforehand is necessary.

Functionality and Performance in Real Use

Performance-wise, I was impressed with the quick response of the relay in switching power to connected devices once the smoke or heat detector triggered the interconnect signal. This feature is essential for safety, ensuring that auxiliary alarms or devices activate instantly, increasing the chances of early detection and evacuation. The relay module also supports manual pull stations and flow switches, which adds to its versatility in different fire alarm configurations.

In a home environment, the module worked quietly in the background, only coming alive when needed. I tested it by simulating smoke alarm signals and was pleased to find the connected devices responded reliably each time. The module’s UL approval offers peace of mind that it adheres to safety standards, which is crucial for anyone depending on it to protect lives and property.

Value Proposition

Evaluating the price to quality ratio, this relay module seems reasonably priced considering its performance and compatibility with Kidde systems. While it might not be the cheapest option on the market, the reliability and ease of integration with existing safety devices make it worth considering for those already invested in Kidde alarms. If you’re looking for a fire safety relay module that performs consistently and is backed by a reputable brand, this product delivers solid value.

However, if your system includes multiple brands or you want wireless capabilities, other options might suit your needs better. The absence of batteries and the need for a steady 120 VAC power supply means additional investment might be necessary for backup power solutions, which should be factored into the budget.

Other Options in the Market

Comparing this relay module to competitors like the First Alert or Nest Protect interconnected modules shows some clear differences. The Kidde relay excels in direct wired reliability and compatibility with Kidde fyrnetics devices, which is often preferred in commercial or larger residential installations. On the downside, some other brands offer more universal compatibility or even wireless interconnect options, which can simplify installation and expand use cases.

While Nest Protect provides smart features and app connectivity, the Kidde SM120X focuses strictly on dependable relay switching, making it a rock-solid choice for those prioritizing robust wired interconnect systems over smart home integration. First Alert modules may be easier to install for beginners due to broader compatibility, but they sometimes lack the power handling capabilities of this Kidde module.

Positive Features That Stand Out

• Fast and reliable switching of connected devices upon smoke or heat detection
• Internal power supply supports manual pull stations and auxiliary warning devices
• Compatible with multiple station alarms and detectors in Kidde systems
• Simple wiring with 10-inch 18-gauge pigtail leads and built-in test/reset button
• UL-approved for safety and compliance

Limitations to Keep in Mind

• Compatibility mainly restricted to Kidde fyrnetics devices only
• Requires 120 VAC power supply, no battery backup included
• May pose installation challenges for those unfamiliar with wiring
• Pigtail leads might be too short for more complex installations

Testing this module alongside a few colleagues and family members reminded me how important it is to balance ease of use with system reliability in fire safety gear. While not perfect, its performance and dependability in interconnected alarm setups make it a solid choice for anyone committed to maintaining a comprehensive fire detection network.

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