This is a standalone Angelcare AC401 Nursery Unit finished in white and teal. It features an integrated halo nightlight that can be toggled via the side switch and a built-in microphone for sound transmission. The rear of the device includes a sensitivity adjustment dial for the movement sensor pad and a dedicated input for the sensor connection. The unit is powered by a 7.5V DC mains adapter, which is included, and has a battery compartment at the base for backup power. This unit is being sold as a replacement or spare part for an existing AC401 system and requires a compatible Parent Unit and sensor pads to function as a complete monitoring system. The device is in used condition with some minor surface marks consistent with age but is confirmed to power on as shown in the photographs.
eBay