ir transmitter module.
Supply voltage: 5V
Working environment: -25 ~ + 85 °
Storage temperature: -30 ~ + 100 °
Wavelength: 940nm
Module size: 13.7mm × 27.8mm
Module weight: 1g
Signal type: digital signal
Infrared center wavelength: about 850nm-940nm
Infrared emission angle: about 20 degrees
Infrared emission distance: about 1.3 meters (5V 38Khz)

ir receivr modules.
1. Adopt 1838 remote control receiver with high sensitivity

2. Working voltage 5V

3. output type: digital outputs

4. There are 2 fixing holes for easy installation. Aperture 3.1mm

5. with date indicator

6. PCB size: 23.5*21.5mm

Wiring instructions:

1.DAT digital output interface

2.VCC 5V DC power supply positive

3.GND 5V DC power supply negative