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You have likely heard us talking about the benefits of PowerG Sensors at one point or another. Today, we figured we would break down the benefits of these sensors and explain why we like them so much. Let's take an in-depth look at PowerG Sensors and all of their wonderful benefits.


PowerG Sensors were originally designed for the hardwired DSC PowerSeries NEO Systems. By adding a compatible transceiver unit to your PowerSeries NEO, the system will be able to support PowerG Sensors. Johnson Controls, which you may know as the parent company of DSC, took the technology associated with PowerG Sensors, and brought it over to the Qolsys IQ Panel 2 System. This move was not a major surprise, as Johnson Controls also had partial ownership over Qolsys at the time, and Johnson Controls has since bought out Qolsys entirely.

The addition of PowerG support for the IQ2 marked the beginning of the Qolsys IQ Panel 2 Plus, which is how the system is still marketed and sold today. PowerG support is also available for the DSC Iotega, though that panel has largely flopped due to its lack of local end user programming. Today, the Qolsys IQ Panel 2 Plus represents the most popular panel for supporting PowerG. All versions and variants of the IQ Panel 2 Plus support PowerG Sensors, and their exceptional performance makes them the go-to choice for IQ2+ users who want equipment with the best versatility and protection.

Starting with the range, PowerG Sensors can be used from up to 2,000 feet away from the IQ Panel 2 Plus when they are used in an open air environment. By open air environment, we are talking about a perfect setting with a direct line of sight, and no obstacles between the sensor and the alarm panel. Most homes and businesses do not provide the ideal, "open air" environment, as there are usually walls and metal appliances present. When you see us mention that 2,000 feet open air range, take that with a grain of salt, because in practice, the range is likely a bit less. But still, we can undoubtedly say that PowerG offers arguably the best wireless range in the security industry. Even if its nominal range isn't quite as far as its "open air range", it is still a very powerful signal that can help you overcome the range issues that other sensor lineups may experience. It is great for use in detached garages, barns, multi-building complexes, and even just large industrial buildings.


To make matters even better, there is also a PowerG Repeater, the PG9920. This device will effectively double the range of any PowerG Sensor and help you overcome range limitations caused by thick walls and other obstacles or signal disruptions. The repeater works by taking the signal sent out from any PowerG Sensor and sending it out a second time with just as much power and force as when it was first sent from the original sensor. By strategically placing the repeater, it's theoretically possible to double the useful wireless range of these sensors. That would mean that they can be used from up to 4,000 feet away from the IQ2+ in an open air environment. And if your building is particularly large, you may even have repeaters going away from the IQ Panel 2 Plus System in different directions, including up and down in building stories above or below.

But PowerG Sensors offer more than just an impressive wireless range. They are also known for their exceptional security. This is thanks to their military grade 128-bit AES encryption. To put this as simply as possible, the PowerG Sensor and the panel share a unique encryption key at the time of pairing. The sensor must provide this encryption key to the panel whenever it transmits a signal. Additionally, the panel must then provide a return response with the encryption key as verification in order for the command to go through. In the past, we have referred to this two-way communication process as a "digital handshake". Because of this encrypted pairing process, a PowerG Sensor actively knows whether or not it is currently paired with a panel. You may need to factory default a PowerG Sensor before you can pair it with a new system.


PowerG Sensors also take proactive measures against RF jamming. When a wireless sensor communicates with an alarm panel, it does so at a certain wireless radio frequency (RF). When we talk about RF jamming, we are referring to any malicious technique that prevents wireless signals from reaching their intended destination. This is accomplished by blocking the receiver with a stronger signal at the same wireless frequency as the device that is legitimately trying to communicate with it. When this is done on an alarm system, the system doesn't receive the incoming signals from faulted sensors, and no action is taken during a security breach or an unfavorable environmental condition. Early wireless sensors did not take this into account, and this made RF jamming an effective way to defeat an older wireless system.

The way that PowerG Sensors overcome RF jamming techniques is through a process called Frequency Hopping Spread Spectrum (FHSS). This process involves splitting the RF bandwidth into multiple channels. Each independent channel represents a unique radio frequency for wireless communication to occur. The transmitter (the PowerG Sensor) and the receiver (the alarm panel) both agree on a set of channel hopping sequences that will take place. These sequences are encrypted and time-based for them to occur seamlessly. Since the transmitter and the receiver are both synchronized, they can switch between channels very rapidly. A potential intruder would never be able to re-tun an RF jamming device to keep up. In the case of the PowerG Sensors, the frequency hops occur between 912 MHz and 918 MHz. There are 50 different unique frequency channels that are used, and frequency switches occur 64 times per second. More information on FHSS is available here.

One other benefit of PowerG Sensors that we have never discussed previously is their Adaptive Transmission feature that helps them conserve battery life. This is why you will often see a PowerG Sensor with a very long expected battery life, sometimes more than ten (10) years). Adaptive Transmission involves two-way communication between the PowerG Sensor and the alarm panel. The alarm panel will tell the PowerG Sensor how well its signal is being received. The PowerG Sensor can then adapt its outgoing signal so that it reliably reaches the panel, without expending too much energy. The sensor and the panel regularly exchange this information so that the ideal amount of energy is always used in signal transmissions. This saves battery life in the long run.

We have also found that PowerG Sensors are extremely easy to enroll and they offer the reliable and effective performance that you should expect out of your security system. We wholeheartedly recommend them for use on the Qolsys IQ Panel 2 Plus, as well as any other compatible alarm system. It is expected that the upcoming Qolsys IQ Hub will also be able to utilize PowerG Sensors, so look forward to using PowerG Sensors on that panel once it is available.


For now, if you have any questions about PowerG Sensors or the systems that support them, or if you are interested in signing up for new alarm monitoring service, then please reach out to us by emailing support@alarmgrid.com. We'll be available to check your emails from 9am to 8pm ET M-F. We look forward to hearing from you!

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As you may know, the fall season began earlier this week. This means that cooler temperatures are on the way. If you want to prepare your home or business, then you will certainly want to consider getting some low-temperature freeze sensors. Nearly every system has good options available!

Freeze sensors alert your system when the temperature in the building drops to a dangerously low level, usually due to the HVAC system being broken. Having one of these sensors in your home or business is crucial for monitoring the building while you are away. The consequences of having below-freezing temperatures in your home or business can be dire. The pipes can freeze, and major damage can occur. Installing a freeze sensor is small price to pay to prevent this from happening.

Most freeze sensors are designed to alert a system before freezing temperatures occur. Usually, a freeze sensor will activate at or around 40°F to alert the system. This a little bit higher than 32°F, which is when water begins to freeze. This function is intentional, as the user will hopefully be alerted to the situation with enough time to take action. Many users will set up notifications on an interactive service platform used with their alarm systems so that they are notified via text and/or email when a freeze sensor activates while they are off-site. This is possible in both Total Connect 2.0 and Alarm.com.

The main thing to consider when choosing a freeze sensor is whether or not it will work with your security system. If you know which sensor lineups are compatible with your system, then you likely already have a good idea which sensors will work. But we'll list out some of the more popular options to get you started. A very versatile 345 MHz freeze sensor that will work with the Honeywell Lyric, the Honeywell LYNX Touch Panels, and any 2GIG Panel is the Honeywell 5821. This sensor can also be used for flood detection if a probe is added.


If you have a PowerG-compatible system, such as any version of the Qolsys IQ Panel 2 Plus, then you might consider the DSC PG9905 Temperature Sensor. Many users prefer PowerG Sensors like the the PG9905 due to their superior wireless range and 128-bit AES encryption. If you have an original, non-Plus IQ Panel 2, then the 319.5 MHz Qolsys IQ Temp-S is a good choice. The Qolsys IQ Temp-S will utilize rolling code encryption when paired with the IQ Panel 2. Users of the 2GIG GC3e and 2GIG GC2e also have a good encrypted freeze sensor option in the 2GIG FT6e-345. There's also the non-encrypted 2GIG FT6-345 for users of the older 2GIG GC3 and 2GIG GC2 Systems.

Alarm Grid wants to help you keep your home or business comfortable this winter, as well as for many more winters to come. If you need help choosing a freeze sensor, then please don't hesitate to reach out to us. We are also happy to discuss monitoring services that you might use to receive alerts regarding a freeze sensor that activates while you are away from your home or office, The best way to reach us is to email support@alarmgrid.com. We check our email during our usual business hours of 9am to 8pm ET M-F. We look forward to hearing from you!

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As you may recall, Qolsys recently released Firmware Version 2.5.0 for the IQ Panel 2 and IQ Panel 2 Plus. One thing we forgot to explain in greater detail is the new ability for IQ Panel 2 users to receive temperature sensor alerts from Alarm.com. Alerts can be sent via email and/or text.

Qolsys iq panel 2 plus verizon lte with powerg s line and legacy

We posted awhile back about the inability for Alarm.com users to receive alerts regarding temperature sensor activity. This issue has now been addressed with Qolsys IQ Panel 2 Plus Firmware Version 2.5.0. While this doesn't fix the issue for other security systems, it does provide an effective solution for anyone using temperature sensors with the Qolsys IQ Panel 2 or IQ Panel 2 Plus. Being able to receive remote alerts from Alarm.com regarding temperature sensor activity can be very important in case of a broken HVAC system causing an overly hot or cool home.

The solution comes from the new Sensor Group - 25 Non-Reporting. This Sensor Group is available for use with environmental sensors, including any temperature, flood and freeze sensors. When a zone uses this Sensor Group, activating the associated sensor, will result in an alert being sent to Alarm.com, but not a central monitoring station. Alarm.com can then automatically forward the alert to the end user through text and/or email, depending on their notification settings.

If you are looking for a temperature sensor for a Qolsys IQ Panel 2 Plus, we generally recommend the DSC PG9905 Temperature Sensor. As a PowerG Sensor, the PG9905 will work with all versions of the IQ Panel 2 Plus. There are also various legacy RF temperature sensors available if you cannot go the PowerG route for whatever reason. If you have an original IQ Panel 2 System, then you will want to consider 319.5 MHz temperature sensors, such as the Qolsys IQ Temp.

Remember that you will need an alarm monitoring plan with Alarm.com service to start using the Alarm.com platform. Examples of compatible monitoring plans include the Gold and Platinum Level Plans from Alarm Grid (Self or Full). We offer free technical support for all Alarm Grid monitored customers, and we are happy to help you set up a compatible temperature sensor for your IQ Panel 2 or IQ Panel 2 Plus if you are experiencing difficulties. Just email us at support@alarmgrid.com. Our support hours run from 9am to 8pm ET M-F, so keep that in mind when emailing our support team. We look forward to hearing from you!

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Hi DIYers! Today, we want to discuss an unusual quirk we found with Alarm.com. It turns out that the Alarm.com platform cannot receive alerts from temperature sensors. This is important for any Alarm.com user who wants to receive remote alerts for unusually high or low temperatures.


When you use sensors with a security system, the expectation is that you will be able to receive alerts from an interactive service platform whenever the device is activated. But with Alarm.com, the platform cannot receive incoming signals from a system regarding faulted Temperature Zones. This means that you cannot use Alarm.com to receive text and/or email alerts regarding an activated temperature sensor.

We discovered this issue due to a customer using a DSC PG9905 Temperature Sensor with a Qolsys IQ Panel 2 Plus System. We quickly discovered that the issue also applied to any temperature used with an Alarm.com Security System. This is important to note, as we know that many users out there will want to know about any unusual temperatures in their homes and businesses. Many people rely on using these sensors with their security systems so that they know if their HVAC systems break before serious and expensive damage occurs.

Fortunately, there is still another way you can receive alerts from Alarm.com regarding an unusually high or low temperature. If you pair a Z-Wave thermostat with your system, then you can set up notifications to be sent out whenever the detected temperature goes outside of a set threshold. A good Z-Wave thermostat to use for this application is an Alarm.com ADC-T3000 Thermostat. This thermostat also supports the ADC-S2000 Temperature Sensor, which will allow you to monitor the temperature in a second area of the building as well.

Another option is to use the Total Connect 2.0 platform with a Resideo Security System instead. Unlike Alarm.com, the Total Connect 2.0 service can be set up to send out text and/or email notifications for any sensor type, including temperature sensors. The Resideo LYNX Touch and Lyric Systems also have designed Temperature Zones that are used with Z-Wave thermostats to end high-low temperature alerts to AlarmNet360 and TC2 whenever an unusual temperature is detected. Just make sure that any Temperature Zone is noted as such on your central station document. These zones are frequently mistaken for 24-hour auxiliary medical zones.

If you have any questions about the functionality of temperature sensors, the Alarm.com and Total Connect 2.0 platforms, or any of our other products or services, please email us at support@alarmgrid.com. Remember that our support hours are from 9am to 8pm ET M-F. We also recommend checking out our monitoring page to learn more about our monitoring services. We look forward to hearing from you and providing top-quality monitoring service for your home or business.

UPDATE: This issue was later addressed in Qolsys IQ Panel 2 Plus Firmware Update 2.5.0. Please see this post for more information.

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Hi DIYers! We know it has been awfully chilly out there lately. We thought it would be a good time to talk about freeze sensors and the benefits they provide. These devices are strongly recommended for anyone who lives in a colder area who wants to make sure their home is kept temperate.

Honeywell 5821 wireless temperature sensor and water sensor exte

Also called temperature sensors, freeze sensors alert a security system when the ambient temperature falls below a certain threshold. Usually, this is around 40 degrees Fahrenheit. That way, the user can take proper action to prevent their pipes from freezing. Remember, water freezes at 32 degrees Fahrenheit, and serious damage can occur if nothing is done in time. There are all sorts of horror stories of this happening while people are away for the day or on vacation.

Freeze sensors are particularly useful when used with an interactive service platform, such as Total Connect 2.0. These services will provide you with mobile alerts so that you will know if a situation occurs while you are away. Nearly every panel we sell can connect with one of these services. You just need the right communicator and monitoring plan.

While there are some standalone temperature sensors, freeze detection is often a secondary feature on a device. In fact, you might already have a device with freeze detection capabilities in your home and not even know it! The feature is commonly found on smoke detectors and flood sensors, so it never hurts to find out if your existing devices can also do freeze detection. For multi-function devices, freeze detection will usually operate on a specific Loop Number, and a unique system zone for freeze detection must be programmed.

Qolsys iq temp temperature sensor for low %3c40 and high %3e100 temp

If you're in the market for a new freeze sensor, you have plenty of options to choose from. The main thing to keep in mind is whether or not the device will work with your security system. If you are looking for a wireless sensor, then it must communicate at a compatible frequency. If you go the hardwired route, then your system must be able to support hardwired sensors. You might consider getting a smoke detector or a flood sensor that also includes the freeze detection function.

If you have a Honeywell or 2GIG System, then you likely use 345 MHz Sensors. The Honeywell 5821 is a convenient option for reliable freeze detection. You can also add a probe to have the 5821 Sensor double as a flood sensor. If you want a combination smoke and heat detector with freeze detection built-in, you might consider a Honeywell 5808W3.

For Interlogix Systems and the original Qolsys IQ Panel 2, you will want a 319.5 MHz Sensor. The Qolsys IQ Temp is a viable option. There's also the Interlogix TX-E611, which doubles as a flood sensor. For users also looking for a smoke, the Interlogix SDX-135Z also provides freeze detection.

If you have a Qolsys IQ Panel 2 Plus or a DSC PowerSeries Neo, then your system supports PowerG Sensors. In that case, you might go with the DSC PG9905. This sensor will offer the impressive range of PowerG, as well as extremely secure 128-bit AES encryption.

For users who want to go the hardwired route, the best bet is often to go with a smoke detector that includes the feature. We often steer customers towards 2-wire smokes, since they are easier to set up. A good option is the System Sensor 2WTA-B, which also includes a built-in sounder.

Users who are having trouble deciding on a freeze sensor can always reach out to Alarm Grid. We are happy to help you find the perfect device for your needs. You may email us at support@alarmgrid.com, or call us at (888) 818-7728 from 9am to 8pm EST M-F. We look forward to hearing from you!

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