Overview
GAOTek’s GSM 2G Cellular SMS Alarm Controller with Relay Outputs and USB Port is a versatile digital input GSM alarm module designed for home automation and M2M applications. Featuring 2 output relays, it allows for remote control of machines and equipment through SMS commands. This 2G, 3G, and 4G GSM SMS alarm module is equipped with a USB port for easy programming, offering seamless integration with various devices. It also supports digital inputs for a range of detectors, such as water level sensors and PIR motion detectors, making it an ideal solution for remote monitoring and automated control in diverse environments.
Technical Specifications
| DC Power Supply | Standard adapter DC 12 V / 1.5 A Range 36 to 9 VDC |
| Power consumption | Standby 12 V or 70 mA Working Max 12 V or 300 mA |
| Cellular frequency | 850 or 900 or 1800 or 1900 MHz, or 3G or 4G |
| SIM Interface | Supporting 3 V SIM Card |
| Cellular Antenna | SMA Antenna interface, 50 Ohm, Gain 3 dB |
| Serial interfaces | 1 USB Port |
| Digital input | 8, Dry contact, Wet contact (0.5 to 0 VDC = Open. 30 to 3 VDC = Close) |
| Relay output | 2, Dry contact, 240 VAC at 3 A |
| Power outputs | 1 Channel 36 to 9 VDC for external device |
| Backup battery | 3.7 V 1200 mAH |
| Operating Temperature | 14 °F to 158 °F (-10 °C to 70 °C) |
| Working humidity | 95% (condensation free) |
| Size | 2.76 in x 3.46 in x 1.18 in (70 mm x 88 mm x 30 mm) |
| Single gross weight | 11.29 oz (320 g) |
