1: the power supply voltage of 3.2 V to 5.5 V.(if the modules to work long hours in emission state, suggested that when the power supply voltage is greater than 4.5 V when a 1 n4007 diode string avoid module built-in "fever)(open) :
2: the default communication distance of about 600 m (communication distance is adjustable up to 1000 m, air baud rate 5000 BPS).
3: the default idle current: 16 ma (modules in different working mode of the current).
4: module size: 27.8mm*14.4mm*4mm.
5: operating frequency range (433.4 473.0 MHz, as many as 100 communication channel) maximum of 100 mw fired power (can be set)
6: module supporting software upgrades.
7: the default factory Settings: working mode FU3, baud rate 9600 BPS, communication channel CH001 (433.4 M).

Pin Definition

Module Size

Module Diagram

Module Connection