Sonoff SNZB-06P Use Instruction

Pre-Use Instructions

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Running air conditioners, washers, fans
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Ventilation ducts, fire ducts, drainage pipes
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Running robot vacuum
7
Due to microwave reflection, detecting people,
moving objects behind the sensor
SNZB-06P emits 5.8GHz FMCW and CW radio waves into
the detection area, and processes the reflected radio
waves from targets within the area through signal
conversion and algorithms. It can detect targets with
fluctuations as low as 1mm or speeds as low as 3mm/s.
Most human respiratory movements and minor body
motions have fluctuations greater than 1mm or speeds
greater than 3mm/s, allowing it to sensitively identify the
presence of a human body. Additionally, all moving
objects can be detected, and if the vibration frequency or
harmonic frequency of an object, invisible to the human
eye, falls within the range of human respiratory
frequencies, it may be observed by the sensor, leading to
false detection of "human presence."
Due to its high sensitivity and limitations in detection
principles, this Instruction will list some common
scenarios that may cause false detections.

False Detection Scenarios

1-1
2
Curtains and green plants swayed by the wind
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Pets
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Penetrating through walls, detecting people,
moving objects in adjacent rooms or outdoors
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Several human presence sensors interfere
with each other