The QK-G021/022 series remote controller is a versatile device which can be attached to many electronic devices in homes, offices, plant or wherever required. It includes three independent relay switches, two digital alarm inputs and one 433/315 Mhz RF transmitter module. It allows operators to control/monitor remote equipment, machines or power sockets using SMS (Short Message Service) via the GSM network. Up to 4 mobile phone numbers (SIM card numbers) can be registered with the remote controller. These mobile phones can belong to technicians, engineers or individuals who have a requirement to control and/or monitor corresponding devices.


· Remote control from mobile phones

· Android and iOS APP interface 

· Easy to install and configure (no PC required)

· Up to 4 mobile phones per unit 

· Outputs controlled by SMS message 

· Request status via SMS 

· In-built clock for programming the switch state

· Automatically send SMS message after alarm trigger

· 433 Mhz remote control transmitter (up to 4 terminals)

· Waterproof enclosure

· Compatible with all major SIM networks

· Tri-band GSM for use in Europe & USA



• Remote control by GSM mobile phone

• Remote maintenance

• Remote warnings/alarms

• Electric doors, shutters

• Irrigation systems

• Remote system monitoring

• Plant maintenance

• Valve control

• Pumping stations

• Oil/gas pipeline control

• Central heating systems

• Security systems

• PLC and automation system

• Alert/panic caller


Interface on the module


Mobile phone APP interface


The product manual can be downloaded from the following link:


Android APP can be downloaded from the following link:


iOS(iPhone) APP can be downloaded from the following link:


The setup and installation videos of Quark-Elec GSM SMS Remote Controller Kit can be found at the following links:


Packing list 

Quark-elec order number is QK-G021. Package includes: QK-G021 module only. 

Please note the enclosure, RF module, RF main sockets and 12V DC power mains are not included in this package. 


For any technical questions regarding this item, please go to the forum at and ask us your question, it's regularly checked by our technical team and your question may already have been answered there.