WIRELESS THERMO-HYGRO SENSOR
WIRELESS SOIL MOISTURE & TEMPERATURE SENSOR
Model: C3127A
User Manual
Thank you for selecting this Wireless Soil Moisture & Temperature sensor. This manual
is used for EU, US or AU version. Please read the instructions carefully according to the
version you purchased and keep the manual well for future reference.
Front
side
rating
DIFFERENCES BETWEEN EU AND US VERSION
Below table show the differences between the Europe(EU), United State(US) and
Australia(AU)
EU version
US version
AU version
868MHz
SOIL SENSOR
915MHz
SOIL SENSOR
917MHz
SOIL SENSOR
IMPORTANT NOTE
- Read and keep these instructions.
- Do not cover the ventilation holes with any items such as newspapers, curtains
etc.
- Do not clean the unit with abrasive or corrosive materials.
- Do not tamper with the unit’s internal components. This invalidates the warranty.
- Only use fresh batteries. Do not mix new and old batteries.
- Do not dispose old batteries as unsorted municipal waste. Collection of such
waste separately for special treatment is necessary.
- Attention! Please dispose of used unit or batteries in an ecologically safe
- Technical specifications and user manual contents for this product are subject to
manner.
change without notice.
CAUTION
- Danger of explosion if battery is incorrectly replaced. Replace only with the
same or equivalent type.
- Battery cannot be subjected to high or low extreme temperatures, low air
pressure at high altitude duning use, storage or transportation.
- Replacement of a battery with an in correct type that can result in an explosion
or the leakage of flammable liquid or gas.
- Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting
of a battery, that can result in an explosion.
- Leaving a battery in an extremely high temperature surrounding environment
that can result in an explosion or the leakage of flammable liquid or gas.
- A battery subjected to extremely low air pressure that may result in an explosion
or the leakage of flammable liquid or gas.
- An appliance is only suitable for mounting at height ≤ 2m.
OVERVIEW
1
4
5
6
7
1. Transmission status LED
2. Sensor metal probes
3. Moisture sensor
4. Wall mounting holder
5. [CHANNEL] slide switch
to assign the sensor to
Channel 1,2,3,4,5,6 or 7
6. [ RESET ] key
7. Battery compartment
2
3
GETTING STARTED
1. Remove the battery door.
2. Slide the [ CHANNEL ] slide switch to choose a channel.
3. Insert 2 x AA size batteries into the battery compartment according to the polarity
mark on the battery compartment..
4. Close the battery door.
5. After inserting batteries, the transmission status LED will light up 1 sec.
NOTE:
than one sensors.
- Ensure to assign different channels of different sensors, in case you need to pair more
- Once the channel is assigned to a Wireless Soil Moisture & Temperature sensor, you
can only change it by removing the batteries or resetting the unit.
- Avoid placing the sensor in direct sunlight, rain or snow.
PAIRING THE WIRELESS SENSORS WITH THE CONSOLE
The console will automatically search and connect to your wireless sensor(s). Once
your sensor(s) pair up successful, the sensor(s) signal strength indication and weather
information will appear on your console display.
NOTE:
During signal transmission, the LED indicator of the sensor will flash.
TEMPERATURE DISPLAY
On the display of the console which the soil sensor is linked to, temperature reading will
be displayed.
SOIL MOISTURE DISPLAY
Soil moisture can be clarified into 5 different levels: Very Dry, Dry , Moist, Wet and Very
Wet.
To determine the moisture of soil, the sensor calibrate the moisture into 16 points, and
correlate them into percentage value:
Points
Percentage
Level
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0%
7%
13%
20%
27%
33%
40%
47%
53%
60%
67%
73%
80%
87%
93%
99%
Very Dry
Dry
Moist
Wet
Very Wet
NOTE:
The measurement accuracy of the sensor can be affected by the soil condition. For
example, the loose soil may get lower moisture level that compare with the dense soil.
SENSOR PLACEMENT
Select the suitable installation site that insert the sensor probes into the soil around
100mm (4 inch) and sensor should place within 30 meters of the display console to get
the best transmission performance.
150m
Display
console
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a n a circuit different from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
“ FCC RF Radiation Exposure Statement
Caution: To maintain compliance with the FCC’s RF exposure guidelines, place
the unit at least 20cm from nearby persons.”
Soil sensor
placement
Main body to
ground: 1m
(Mounting pole
not included)
Soil
Depth: 1m
NOTE:
Signal transmission range of the sensor will be gradually reduced as sensor is inserted
deeper into the soil. To achieve best transmission range, install the sensor on the same
plain of view as the display console..
RESET THE SENSOR
In case of mal-function, press [ RESET ] button to reset the sensor.
Dimensions (W x H x D)
125 x 58 x 19 mm (4.9 x 2.2 x 0.7 in)
SPECIFICATIONS
Weight
Main power
Weather data
RF frequency
Temperature Accuracy
RF transmission range
150m (300feet) straight distance
144g (with batteries)
2 x AA size 1.5V batteries (Lithium battery
recommended for low temperature environment)
Soil temperature and moisture
868Mhz (EU) , 915Mhz (US), 917Mhz (AU)
-5°C ~ -0.1°C ± 2°C (23 ~32°F ± 4°F)
0 ~ 40°C ± 1°C (33 ~ 86°F ± 2°F)
40.1 ~ 50°C ± 2°C (87 ~ 122°F ± 4°F)
Below -5°C (23°F) or above 50°C (122°F not
guarantee the accuracy)
Moisture Accuracy
Number of channels
Transmission interval
0% ~ 99%
7 (CH1 ~ 7)
60 seconds
Operating temperature range
-20 ~ 60°C (-20 ~ 140°F) not recommend under
freeze condition
Operating soil moisture range
0% to 99%
FCC STATEMENT
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Warning: Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user’s authority to operate the equipment.
NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications.