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Digital sensor CH-S02 is a device used to measure temperature and relative humidity.

Advantages СН-S02:

● Allows you to measure ambient temperature and humidity simultaneously;
● Allows you to measure temperature in the range from -55 ° C to +90 ° C;
● Temperature measurement accuracy ± 0,5 ° C;
● Allow you to measure relative humidity in the range from 0 to 100%;
● Relative humidity measurement accuracy ± 5%;
● Small dimensions - 5.25mm*12mm*15.2mm;
● Body is secured by IP-40 technology, which helps to protect the construction from ingress of dust on live parts.

Dear user, CONNECTHOME COMPANY thanks you for choosing our products. Before installing combined sensor CH-S02, please read carefully the User Guide.



CH-S02 is a combined digital sensor which can measure ambient temperature and relative air humidity simultaneously. Sensor CH-S02 can be used to measure environmental conditions both inside and outside the premises.



Guarantee period is 3 years from the purchase date. Products that were transported, stored, installed and operated violating the requirements to this product, as well as those with mechanical damage, cannot be replaced under the guarantee.

Do not use the device in ways other than those specified in this manual. Manufacturer has no warrant responsibility for the non-compliance with the exploitation rules, alterations in the design or painting the device. After opening the package, be sure to check the device for damage. If there is a visible damage, do not connect or use the device.



Operating supply voltage *: 3,3 V
Operation temperature range: –40°C to +90°C
Temperature measurement range: –55°C to +90°C
Temperature measurement accuracy in the range from -10 °C to + 85 °C: ±0,5 °C
Temperature measurement accuracy in the range from -55 °C to -10 °C and from + 85 °C to + 90 °C: ±2 °C
Relative humidity measurement range: 0-100%
Relative humidity accuracy: ±5%
Max wire length (in case of included wire extension): 50 m
Data transfer interface (data bus): S-Bus
Safety level: IP-40

*Power is provided by ConnectHome device to which the sensor is connected.



Temperature and relative humidity sensor is connected to special S-Bus port, which is located on some of ConnectHome devices: CH-101, CH-201, CH-202, CH-104 (list of devices supporting ConnectHome S-Bus sensors can be extended).

In Z-Wave network sensor is displayed as structural unit (endpoint) of the module to which it is connected. Data is transferred to the main controller using Z-Wave radio commands.

If it is necessary to connect sensor to module after module connection to Z-Wave network, you need to remove it first, and then re-add the sensor after connection.

infTo remove (exclude) module from Z-Wave network, put the controller into exclude mode (see instructions to controller) - and quickly press and release inclusion/exclusion button three times. Note that after the device exclusion from Z-Wave network, all settings you have made will be reset to factory settings..


To measure air temperature and humidity in the premises the sensor is mounted at a height of approximately 1.5 m above floor level and at least 0.5 meters from corner of the premises. Sensor should not be installed on the outside walls or other objects that may distort the temperature sensor data. It is necessary to avoid places where the sensor may be exposed to direct sunlight or draughts, as well as splashes of water and other liquids. It is necessary to avoid exposure of significant heat generation on the sensor.

infYou need to take into account the fact that during normal operation module generates minimal heat. Sensor placement near module (at a distance of less than 20 cm) can distort temperature data.


For temperature and air humidity measurement outdoors place the sensor where it can avoid direct exposure of moisture and sunlight.

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