• The HK301 is an industrial-grade IoT wireless data transmission terminal designed for full Netcom compatibility.
• It supports the three major operators and APN, ensuring stable and reliable networking with data transmission delays generally under 1 second.
• The device offers three communication interfaces: TTL, RS232, and RS485, and includes an embedded TCP/IP protocol stack for transparent machine-to-machine transmission.
• It supports point-to-point and center-to-multipoint peer data transmission, with an always-online working mode.
• Features include automatic reconnection and restart upon disconnection, and remote SMS capabilities for querying configuration parameters, device restart, and parameter configuration.

• The device supports a wide frequency band and a single power supply range of +8V to +28V DC.
• Data rates range from 300 to 115200bps, with a default of 115200bps.
• It has low power consumption, with an average current of 40mA during emission and 20mA when idle at +24V.
• The operating temperature range is -20 to 60℃, and it can function in hot and humid environments with a relative humidity of 90% to 95%.
• The antenna connector is SMA-K (female), and it includes three serial data interfaces: TTL, RS232, and RS485.
• The dimensions of the product are 92*64*26 mm.

Details on the interface definitions are provided, likely specifying pin configurations and signal types for the TTL, RS232, and RS485 interfaces.

The product dimensions are specified as 92*64*26 mm, indicating a compact design suitable for various installations.

The device supports remote monitoring capabilities, allowing for efficient management and troubleshooting from a distance.