TWO ANTENNAE: Consists of Transmitter antenna and Receiver antenna. 

SMART controller allows very low false alarms caused by environmental EM-noise. 

TALL antenna frame covering a height of 180cm (6ft) or more. 

ALARM with adjustable sound and light on receiving antenna only. 

IN-BETWEEN DETECTION: Detection Distance: 90cm (35.4") between two antennas with 30x40mm Sticker Tag. A limited detection distance in outside of two antennas.  The distance and sensitivity may vary according to the types of alarm tag and environment. 

Application: One system can cover 3-ft entrance (single door).  Wider entrance can be protected by Rx-Tx-Rx arrangement or Tx-Rx-Tx-Rx arrangement. 

Dimension: 167cm x 34cm x 8cm (H65.7" x W13.4" x D3.1")