Portable Receiver / Pager, Dakota PR-2500

Size 2.5” x 1.25” x .75“
Weight 2.1 oz without battery
Frequency 433.92 MHz
Code Combinations 256
Zones 4
Alert Methods Silent, vibrate, and audible
Memory up to 999 events per channel
Lithium Ion rechargeable battery
Battery charger included

Pager Product Instructions https://www.entryalertproducts.com/product/dakota-alert-pager-pr-2500/