W
IRELESS
W
ATER
L
EAK
S
ENSOR
C
OPYRIGHT
©
2019,
R
ADIO
B
RIDGE
I
NC
.
W
IRELESS
W
ATER
L
EAK
S
ENSOR
P
AGE
7
OF
12
6.2.
Uplink Messages
The uplink message (sensor to web application) specific to the sensor is defined in following
table. The common uplink messages are not included in this section (see common messages
document).
Table 5 Uplink Message 0x08: Water or Liquid Event
Byte
Description
0
Water event (see table Water Event Bit Definitions)
1
Relative measurement of the resistance between probes
(scale of 0-255)
The water event bit definitions are shown in the following table.
Table 6 Water Event Bit Definitions
Bits
Description
7:1
Unused
1
Water or liquid not present
0
Water or liquid present
The 8-bit event for the liquid sensor contains a relative measurement of the resistance
between the probes with a scale of 0-255. Different liquids will have a different resistance
through the material (water vs fuel for example), so this measurement can be used to set the
threshold properly as defined by the configuration message in the Downlink section
