Doodle Labs DL435-30

This device allows (via transverted 802.11b/g) operation within the 70 cm band.. more specifically, from 420 to 450 MHz.

Additional specifications, per the manufacturer's site, follow..
 * Receive sensitivity: ranges from -96 to -72 dBm, +- 2 dBm
 * Receiver LNA gain: +15 dBm
 * Tx power: up to 30 dBm (1 W)
 * Ambient operating temp. range: -20°C to +70°C ('industrial grade')
 * Dimensions: noted as Dimensions::60 mm x 60 mm x 10 mm