NT-R02BM 250~450MHz OOK/ASK Receiver Module (DC 5.0V)
Model: NT-R02BM - Color: Blue - Material: PCB - Modulation: OOK / ASK - Frequency range: 250~450MHz - Bandwidth: 2MHz - Sensitivity: > -105dBm (50ohm) - Decoding format: PT2272 / HS2272 / AX5327 - Output: TTL electrical level; 4-CH control output; Output format: Pulsation (M) - Antenna length: 24cm (315MHz); 18cm (433.92MHz) - Working voltage: DC 5.0V +/- 0.5V - Working current: no more than 4.5mA