This wireless module  board  using high-performance Nordic VLSI NRF905 radio chip,  the maximum transmission data rates up to 50Kbps with GFSK, sensitivity to-100dBm, high reliability, can be widely used in various occasions, short-range wireless communications (such as wireless meter reading, industrial remote control, low-power handheld equipment, etc.)

• Operating voltage: 1.9 ~ 3.6V, not more than 3.6V (recommended 3.3V)
• Low-power, standby mode only 2.5uA
• Work on the 433MHz band, no need to apply frequency usage license.
• The maximum operating rate of 50kbps, support GFSK modulation
• A lower current consumption (Tx Out: 30mA< , RX in, 12.2mA, 433MHz)
• Rx Sensitivity: -100dBm Built-in hardware, 8 / 16 bit CRC checksum
• Channel switching time <650ms
• Programmable control of output power, for all the support frequencies of up to +10 dBm
• Standard DIP spacing interfaces for embedded applications
• Transmission Distance: open to the actual transmission distance 200-300 meters (depending on the specific situation of the environment and communication baud rate settings, etc. may be)
• Module Size: 80mm * 18mm * 15mm (included antenna)

Application:

• Wireless meter reading, industrial remote control, low-power handheld equipment

• Wireless sensing, security systems, Vehicle monitoring

• Industrial data acquisition systems, bio-signal acquisition, hydrological and meteorological monitoring

• Control processing, wireless data connection, telemetry, small wireless network

• Wireless meter reading, access control systems, paging area