Honeywell FP280

Water & Flood Probe For Use w/ 5821

Average rating:

(based upon one review)

The Honeywell FP280 is a wired probe designed to detect water in a flood situation. Similar to the 470PB, this is just a simple probe that connects to a flood transmitter like the Honeywell 5821 (wireless) or the 470-12 (wired). Buy the Honeywell FP280 Wired Probe from Alarm Grid.
List Price
$44.00
Our Price
$32.99
You Save
$11.01(25%)

Description

The Honeywell FP280 is a wired probe designed to detect water in a flood situation. Similar to the 470PB, this is just a simple probe that connects to a flood transmitter like the Honeywell 5821 (wireless) or the 470-12 (wired). Historically the 470PB included a resistor that installers were required to wire in parallel at the end of line closest to the probe. There was no included cabling to make the connection from the transmitter to the probe. With a keen eye on the growing community of DIYers, Honeywell created the FP280 to make the installation process easier. No trip to the hardware store for cabling. Now there is a 16.5 foot cable already wired to the probe with the resistor properly strapped across. This means you simply land the raw end of the wires onto the 5821 or 470-12 and the installation is complete.

The FP280 is just a simple device that shorts when water is detected. It can be wall or floor mounted depending on the specific installation. There is a screw included for heavy duty mounting or you can just use adhesive tape. We recommend using high rated tape since it may be a damp area which can cause regular tape to unstick. Most probes are installed in the lowest point in the protected premise such as a sump pump. Other common areas are appliances that may flood your home or business: washing machines, sinks, refrigerators, etc.

Although the FP280 is a wired device in tandem with the 5821 it will speak wirelessly to any wireless Honeywell alarm system. The probe locally wires to the 5821 transmitter. Then the 5821 sends signals wirelessly to any 5800 series RF receivers in range. The combination of these two devices makes it possible for anyone to setup flood protection. No hassle with snaking wires or requiring a prewired space. Some of the most popular panels that this setup will interface with are the Lynx Touch series panels (L5210, L7000), the Lyric Controller and the 2GIG GC2 and GC3. As we mentioned earlier the FP280 can be hardwired using the 470-12. This will work with just about any brand of wired control panels including the popular Honeywell VISTA series panels: VISTA-15P, VISTA-20P and VISTA-21iP.

Brand: Honeywell

Honeywell FP280 Compatible Products

Honeywell 5821 - Wireless Temperature Sensor and Water Sensor (Exterior)
Honeywell 5821
Wireless Temperature Sensor and Water Sensor
List Price: $60.00
Our Price: $43.99
Reviews
Great Flood Probe
Submitted on 04/26/2020 Alarm Grid

The Honeywell FP280 is a flood detection probe that connects to a flood sensor, such as the Honeywell 5821 or the Honeywell 470-12. It is not an actual sensor, and it cannot really do anything on its own. But when used as a probe with a corresponding flood detector, it works very well. Attached to the Honeywell FP280 is a 16.5 foot cable, and it is possible to replace it with a longer cable if you require something even longer. Overall, we really like the Honeywell FP280, and we give it a 5 Star rating.

There are many things we appreciate a Honeywell FP280. For one, it is easy to connect to a compatible flood sensor, making it good for DIY users. The accessory is quite versatile, as it can be used with nearly any flood detector that has a compatible input available. The 16.5 is pretty long for this type of device, and the option of swapping out a cable is nice too. This can be very useful if the original cable ever becomes damaged, or if you just need something longer. As with most Honeywell products, the Honeywell FP280 has a great build quality. A resistor is attached so that your system can be alerted if someone tries to tamper with this sensor.

There are not many downsides to the Honeywell FP280. The biggest drawback is that this sensor really cannot do anything on its own. It is only useful if it is used with a compatible flood sensor. Also, many sensors do not need a probe like the Honeywell FP280, as they already have a probe included. And some users prefer a built-in probe, as opposed to an external probe like the Honeywell FP280. But these downsides are very minor, and we still give 5 Stars to the Honeywell FP280.

Good: Easy to Connect, Versatile, Long Cord, Can Swap Cord Out, Good Build Quality, Resistor

Bad: Useless On Its Own, Not Every Flood Detector Needs One

Bottom Line: 5 Stars

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Sure, besides it specifically saying that in the installation instructions. Each FP280 probe has a certain amount of resistance built in. This is required for the probe to detect the resistance of water. Water does not have a zero resistance, so it os never just short. Putting two probes in parallel (or series) would affect the resistance at the SIXFLOODA (5821, 470-12 or PROSIXFLOOD) and therefore could malfunction or even worse, not detect water in case of a flood. The better option is to spend a little more money on another sensor and probe. This will save an exponentially amount of $$$$, compared to the cost of the equipment, if a flood was to occur.
Thanks for the reply. Can you explain why this is?
Only 1 probe per Flood Sensor.
Can you attach multiple Honeywell FP280 probes to the terminals on a SIXFLOODA so that you can have multiple probes monitoring off one transmitter?
You're welcome Andy. If you have any other questions feel free to check out our content.
Great, thanks John!
I would install it vertically. The install sheet say "as shown" and it's always shown vertically. I'm attaching the install instructions. https://digitalassets.resideo.com/damroot/Original/10019/800-25245.pdf
Hello, can you please tell me the best way to mount the FP280 under a dishwasher. I could mount it either vertically or flat. Is either method ok? Is one better than the other? Thanks.
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