RF Bidirectional Module series are based on the excellent overall design, which ensures the reliability, stability and consistency of the product. They are FSK modulation. Suitable for point-to-point or point-to-multipoint wireless data transmission, such as intelligent control, robot control, smart home, wireless doorbell, vehicle monitoring, etc.
Modules
Modulation
Frequency
Working Voltage(V)
Working Current(mA)
TX Power(dBm)
Sensitivity(dBm)
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SM1139
GFSK
425~525
2.2-3.6
77@TX；3.8@RX
20
-114
SM1040
FSK
300~400
2.3-5.0
24@TX; 5@Rx
13
-106