WiFi relay is designed for remote control of one or two independent devices equipped with potential free contacts. The module includes two relay's contact outputs which are controlled through the Smart4house application in your Smartphone or tablet. WiFi relay can work in manual or automatic mode.

Requirements for the switching on and off for each output In manual mode are transmitted from your Smartphone/ tablet on "Cloud" and through the AP - Access Point and WiFi network 802.11b/g/n subsequently to the relay. The same path is used by the WiFi relay for sending information about implementation of the requirement.

In automatic mode are Relays controled from cloud using an algorithm based on the states or events. For detailed information how to set automatic you can find mode in „Download“ in file „GPS location feature WiFi Relay - Geofence“

WiFi relay is equipped with a pair of relays outputs with switching contacts. The status of relays outputs is indicated by LED diode light. The relay outputs either may be operated in the on/off mode, or the switching pulse can be generate with duration of 1 second. The transmitted information is secured by encryption.

Application area:

Remote control of entrance and garage gates, outdoor lighting control, remote switching of various heating or cooling modes, remote control of pumps

RE-20 Wi-Fi relay with an external antenna in the box to be installed on a
DIN rail
Power supply: 24VDC/ 250mA
Relay contacts: max 230VAC / 6A for a resistance load, 0.5A for inductive load
Manufacturer:SPEL, a.s. Třídvorská 1402, 280 00 Kolín, Czech Republic
Dimensions S4H-RE-20:36x90x58mm (1.42x3.54x2.28 inch)
WiFi relay Weight:90g (3,6 oz)
Power (S4H-RE-20):24V VDC/ 250mA
Number of outputs: 2 relays with changeover contacts
Relay contacts rating (S4H-RE-20): max 230VAC / 6A resistive, 0.5 A at inductive load
Network Requirements:WiFi 802.11 b/g/n 2.4 GHz
WiFi Range:Up 80m (260 ft) without obstructions.
Operating Temperature:Temperature: 0 - 50°C, 32 - 122°F
Application:For indoor use only. Minimal separation distance between persons and sensor must be 20 cm (7.87 inch).

Data obtained via websites during the operation of Smart4house devices is protected in accordance with the DIRECTIVE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL 95/46/EC of 24 October 1995 on the protection of individuals with regard to the processing of personal data and on the free movement of such data, and according to DIRECTIVE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL No. 2006/24/EC of 15 March 2006 on the retention of data generated or processed in connection with the provision of publicly available electronic communications services or of public communications networks.

Protection of Personal Data

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Document name Date Document version
Product manual RE-20 30.07.2015
Android Manual RE-20 11.08.2015 0
iOS Manual RE-20 10.08.2015 2
GPS location feature WiFi Relay - Geofence 25.11.2015
CE Declaration of conformity 03.12.2013
Was launched presale of new product S4H-TMC-00. Thermometer with extended range, new application and a separate cloud designed especially for applications with a need to record and evaluate the record
Our products family gets a completely new dimension. It was launched portal application IF-THEN,which allows you to create simple conditions and on its creat interaction between sensors and wifi-relay
New LED bulbs technology.
Smart4House® has a new family member. It is the temperature sensor.