A cash drawer trigger is a device that allows you to open cash drawer without connecting to a POS receipt printer, can be used independently with your POS application. Commonly, auto open of cash drawer is controlled by POS receipt printer. After a sales receipt is printed, the cash drawer will open automatically. But if user wants to open cash drawer without printing a receipt or without making a sale such as making a refund to customer, he/she can use a cash drawer trigger to fulfill the task. POS System runs on different operating system such as Windows and Android, different cash drawer trigger interfaces are created and made available to meet customers’ demands.

Yes, you can use AT10ME Cash Drawer Trigger, an easy way to open cash drawer without making a sales transaction.
You can have 2 options to open your cash drawer :
1) trigger open from your POS receipt printer after a sales transaction and printing a receipt OR
2) trigger open by a push button to open cash drawer for a NO Sale, without a sales transaction

You can use AT10U3 Android USB Cash Drawer Trigger. It allows direct connection to your android tablet or mobile phone to open cash drawer without printer, provides stable connection and fast data communication.  NO external power supply and OTG adapter needed.

Yes, you can use AT10B3-86201 UnLock Smart Bluetooth Cash Drawer Trigger to open cash drawer when taking cash payment or making a cash refund to customers. It is easy to setup, just connect the Bluetooth Drawer Trigger to your own mobile device, install and complete settings of the AcodeTrigger App (Android). You can also setup a password to open cash drawer. The AcodeTrigger App is user friendl, the App does not involve with any other systems, it operates as a standalone unit, be able to run independently, without EPOS.