An electronic entrance-monitoring device, which creates an invisible infrared beam between the two units up to 20 metres apart. Alarms when someone moves through the beam. Suitable for care of the elderly, children or pets.

• Transmitter and receiver create an infrared beam up to 20 metres
• Alarms if someone moves through the beam
• Three volume level settings and alarm tones
• Two distance settings
• Easy to align with LED indicator lights on both units
• Low battery warning signal
• Each unit measures 9.5 x 7 x 2.5cm
• Each unit uses 1 x 9v battery (not included)