Amazon offers the Philips Avent DECT Baby Monitor with Temperature Sensor, model no. SCD570/10, for $72 with free shipping. That's the lowest total price we could find by $18, although we saw it for a buck less last fall. It features interference-free DECT technology, room temperature sensor, night mode with nightlight and lullabies, and 330-foot range. It requires two AA batteries (included).