You can connect any Bluetooth-enabled external scanner to the Check-in app. If you're looking for some guidance we've created a handy guide with our thoughts below:
We tested and discussed these scanners.
SocketScan S700 Imager Bluetooth scanner. Available here.
Tera 1200 2D Portable Barcode Scanner. Available here.
Tera 8100 Industrial 2D Handheld Barcode Scanner. Available here.
Tera HW0002-O 2D Wireless Barcode Scanner. Available here.
Zebra DS2208 2D Black Handheld Scanner. Available here.
Zebra TC57 touchscreen scanner. Available here.
Tera Android 11 Barcode Scanner PDA P172. Available here.