SRX885 is a micropower consumption 315/433MHz ask receiver module with RF superheterodyne modulation. It can be used with our STX series ASK transmitter module. This product has high stability, anti-interference and high cost performance, and also has a four-way switch output function. It is flexible to use, low cost, development-free debugging, self-decoding, adaptive coding, automatic learning of the market RF remote control. A large number of applications in light control switches, wireless doorbells, smart homes, rolling gates, remote control toys, anti-theft alarm and other fields. The modules can pass ROHS, FCC, CE and other certifications.
| Parameter | Min. | Typ. | Max. | Unit | Condition |
| Operation Conditions | |||||
| Operating voltage range | 2.8 | 3 | 5.5 | V | |
| Operating Temperature Range | -20 | 25 | 70 | ℃ | |
| Current Consumption | |||||
| Working current | 4.5 | mA | @433MHz | ||
| RF Parameters | |||||
| Frequency Range | 433.82 | 433.92 | 434.02 | MHz | @433MHz |
| 314.9 | 315 | 315.1 | MHz | @315MHz | |
| Sensitivity | -115 | dBm | @1Kbps | ||
| Receiver bandwidth | 350 | KHz | |||
| Modulation | ASK |
| Frequency | 315MHz,433MHz |


| Pin Number | Pin Definitions | Description |
| 1 | ANT | Power supply is positive, range 2.8V-5.5V |
| 2, 8 | GND | Power ground |
| 3 | D2 | 4-way switch output |
| 4 | D3 | 4-channel switch output, can be used as serial output |
| 5 | Pair | Pair of code buttons |
| 6 | D1 | 4-way switch output |
| 7 | D0 | 4-way switch output |
| 9 | ANT | Connect 50 ohm antenna |

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