RCRX-434 is an AM Superhet data receiver with PLL sinthesizer and crystal oscillator. It is the smallest superheterodyne receiver module that exists in the market 9.4 x 14mm !! Feature : - ASK/OOK Modulation. - Metallic shield. - Miniaturized. - Frequency : 433.92MHz - Sensibility : -109dBm 5Volt version. APPLICATIONS : Burglar alarm systems, door systems, automation curtains, lighting, temperature control, data transmission.