We know that working out which controller you need can be confusing so we put this comparison chart together to make it simpler:
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The QK-G025 module is an industrial grade product which is designed to provide remote control of pumps, valves and pipelines. As it can work in two modes, Dead Man and Timed Pulse, it can be used for a wide variety of remote applications. The two alarm inputs provide another mechanism for automatic remote monitoring and can act as either switches or input sources, ensuring your liquid/gas transit or storage system is entirely controllable from wherever the operator needs to be. The inputs can be from a wide variety of sensors, e.g. photocell receivers, CO2 monitors, leak detectors etc.
As you can set the QK-G025 up without a PC, it is easy to install in remote locations, you just need a power supply, a registered SIM and a phone signal. Access can be granted to up to four numbers, and incoming calls from any other number will be disregarded so your controller is secure from outside interference. In addition to controlling your system automatically or remotely, it can be interrogated by SMS for status updates. As the unit works on number recognition, the call is never answered thus the system is Toll free in use.
- Secure, uses caller ID for identification, unknown callers are ignored.
- Alarm inputs for automated control.
- Dual working modes, ‘Dead Man’ and time pulsed for remote operation.
- Easy to install and configure (no PC required).
- Up to 4 mobile phones per unit.
- Request status via SMS.
- Compatible with all major GSM SIM networks.
- Tri-band GSM for use in Europe & USA.
QK-R021/022 series remote controller is an easily installed device which can control electric doors, curtains/blinds, and other DC motor driven devices in smart houses, for industrial controls, and for the security of industrial areas. The doors can be operated by the supplied remote control, which also signals the DC motor driven device to turn on or off on demand.
More information about the product can be found here.
QK-G025 module is an industrial grade product intended to provide remote control of DC motors or any DC powered devices. It allows operators to control remote equipment and machinery by free calls through the GSM network. Up to four mobile phone numbers (SIM card numbers) can be registered with it. These mobile phones can belong to families/ technicians or engineers who have a requirement to control corresponding devices. Just dial from the registered SIM cards then the barriers or doors will be opened/closed, or the machine will be turned on/off. There are no call costs since this GSM control module will not answer the call and it will immediately take action after identifying the registered SIM card numbers.
— Four control mobile phones. One main control terminal and up to 3 additional control terminals can be registered with QK-G025.
— Two digital alarm inputs. Various sensors can be monitored, e.g., photocell receiver, obstacle detector, position sensitive detector, motion sensor, temperature/wind detector, carbon dioxide detector, water leak detector.
— The DC motor output can be set as Dead Man mode (action during dialing period) or Pulsed Time mode (action time is set as a fixed time).
— The DC motor output can be fixed polarity or alternating (polarity changed alternatively).
— Prevent SIM being turned off by provider by sending status SMS at set intervals (between 28 to 99 days).