RODOT 433 MHz RF Transmitter Superheterodyne Learning Code 1527 Encoding 433Mhz Remote Control Switch For Arduino Module DIY

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Specifications (Technical Index):
Model Number: TX118SA-4.
Transmitting Power: 11dbm.
Distance: 20-50 M.
Emission Current: 10MA.
Standby Current: Less Than 3UA.
Rate Of Fire: Maximum 10KB / S.
Transmit Deviation: +/- 7. 5KHZ / Narrow-band Emission.
Modulation: ASK.
Operating Voltage: DC 3V-24V.
Encoding: EV1527 1527 Learning Code.
Customizable Special Code: MCU Type.Optional Fixed Encoding Type: PT2262 / EV1527 / HT6P20B (Minimum Order:500pcs).
Key Data: A, B, C, D groups of 4 inputs can be combined into 15 groups.Standby current: <3UA.
Each module has a unique ID address code.
All modules K1-K4 four key code is the same.
Pin Description:
- : Negative power supply.
+: Positive power supply, DC 3-24V.
K1: External input keys, short to ground start transmitting data to 1, the A button on the remote control. 
K2: External input keys, short to ground 2 start transmitting data, the equivalent of the remote control B button. 
K3: External input keys, short to ground start transmitting data 3, the equivalent of the C key on the remote control. 
K4: External input keys, short to ground 4 start transmitting data, the equivalent of the remote control D keys 
ANT: transmitting antenna.
Packing List:
1Pcs * TX118SA-4 Mini Wireless RF Remote Control Transmitter Module