Product Name: Without coding transmitter module

The technical parameters
Working Voltage: 3-12V
Operating frequency: 315, 433.92 MHz (other frequencies can be customized)
Standby current: 0mA
Current: 20-28mA
Transmission distance: > 500m (open area Receiver sensitivity-103dBm over distance)
Output Power: 16dBm (40mW)
Transfer rate: Modulation: OOK (AM)
Working temperature: -10 ~ +70
Size: 19 × 19 × 8mm

Product characteristics:
SAW frequency stabilization, stable performance;
Wide operating voltage range;
Product consistency, and cost-effective.

The pin (left to right) and instructions:
Pin Name Function Description
1 ATAD data input pin
2 VCC power supply positive
3 GND power supply negative

Receiver module, a total of three external interfaces expressed above in English. "VCC" indicates positive power supply, "ATAD" indicates the input, "GND" indicates negative one.

Application Environment
Application: Wireless call system, burglar alarm, wireless data transmission, automatic data collection systems.
Six, optional accessories
And supporting the use of the company receiving products.
Seven, notes
Reception antenna great effect module, then the best 1/4 wavelength antenna, generally 50 ohm single-core wire, the length of the antenna is about 315M 23cm, 433M of about 17cm;
Antenna position also affected the reception of the module, install the antenna stretched as far as possible, away from the shield, high pressure, and the sources of interference;