1. Large power transmission with the transmission power of 2W and 5W selectable.

2. The carrier frequency is 429~437MHz.

3. High receiving sensitivity, the maximum receiving sensitivity is -120dBm at 1200bps.

4. High anti- interference and low BER(Bit Error Rate)

5. Long transmission distance
Within the range of visibility, when the 10dBi antenna height is more than 10m, the reliable transmission distance for the module with 5W is more than 20km

6. Industry
By using the high quality components and high reliable crystal, the working temperature is Industry level

7. Three interface modes(TTLRS-232RS-485).

8. HAC-HM can indicate the intensity of magnetic field, the power source and the transmission and receive of data.