These are cheap and simple to use RF receivers and transmitters. Its extreme small size coupled with its low power consumption makes it ideal for a variety of applications. These modules can be used with an encoder/ decoder IC pair or can be directly interfaced to a microcontroller/Arduino.
Receiver works between 3 - 5V
Transmitter works between 3 -12V
Has a range of around 100m(when in line of sight and when transmitter is powered at 12V)
If you plan to use this pump, we recommend buying the following products too -
HT12E Encoder IC - Use this IC with the RF Module to transmit 4 bits of wireless data
HT12D Decoder IC - Use this IC with the RF Module receive data transmitted from the HT12E IC
4 Bit Wireless Module - Uses the RF Module and HT12E/D ICs to transmit and receive 4 bits of wireless data. This module is ready to use and requires no additional circuits or soldering