no interfering obstacles such as buildings, trees, vehicles, high voltage lines
Wireless signals will not penetrate metal buildings. Under most conditions,
the maximum wireless range is 100’.
.
5. Radio interference such as PCs, radios or TV sets can, in the worst case,
entirely cut off radio communication. Please take this into consideration when
choosing console or mounting locations. Make sure your display console is at
least five feet away from any electronic device to avoid interference.
3.8 Best Practices for Wireless Communication
Note: To insure proper communication, mount the remote sensor(s) upright on
a vertical surface, such as a wall. Do not lay the sensor flat.
Wireless communication is susceptible to interference, distance, walls and metal
barriers. We recommend the following best practices for trouble free wireless
communication.
Electro-Magnetic Interference (EMI). Keep the console several feet away from
computer monitors and TVs.
Radio Frequency Interference (RFI). If you have other 433 MHz devices and
communication is intermittent, try turning off these other devices for troubleshooting
purposes. You may need to relocate the transmitters or receivers to avoid
intermittent communication.
1. Line of Sight Rating. This device is rated at 300 feet line of sight (no
interference, barriers or walls) but typically you will get 100 feet maximum
under most real-world installations, which include passing through barriers or
walls.
2. Metal Barriers. Radio frequency will not pass through metal barriers such as
aluminum siding. If you have metal siding, align the remote and console
through a window to get a clear line of sight.
The following is a table of reception loss vs. the transmission medium. Each
“wall” or obstruction decreases the transmission range by the factor shown
below.
Medium RF Signal Strength Reduction
Glass (untreated) 5-15%
Plastics 10-15%
Wood 10-40%
Brick 10-40%
Concrete 40-80%
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