small hand-held RF transmitter ideal for remote control applications requiring high security levels HCS 300 Microchip Encoder excellent performance thanks to the 3V lithium battery no power consumption in standby mode complies with EN 300 220, EN 301 489 & EN 60950 European Normative encoder: HCS 300 frequency: 433.92MHz power supply: 1 x 3V lithium [product name=CR2032]CR2032[/product] battery (incl.) supply current: 10mA maximum output power (effective radiated power): -3dBm (EN)