This antenna by Delock allows the use of ISM 433 MHz band indoors. Specification - Connector: SMA plug - Frequency range: 433 MHz - Gain: 3 dBi - Impedance: 50 Ohm - Polarisation linear vertical - VSWR: 2.0 - Operating temperature: -40 °C ~85 °C - Colour: black - Antenna length: ca. 2 x 55 mm - Antenna length with adhesive base: 150.2 mm - Dimension adhesive base: ca. 40.4 x 17.0 x 8.7 mm - Cable category: coaxial - Cable type: RG-174 - Cable colour: black - Cable length incl. connector: ca. 2 m System requirements - Device with free SMA connector Package content - ISM 433 MHz Antenna Package - Poly bag https://elecena.pl/product/18023850/89495-ism-433-mhz-antenna-sma-plug 2021-04-29 https://elecena.pl/product/18023850/89495-ism-433-mhz-antenna-sma-plug 2022-03-22