Product Specs: RFID, Inc. Model 3037E: Hand Held RFID

The Model 3037E is a field proven versatile robust tool offering Bluetooth, RS232, USB, or long range wireless options. Using a standard 9v battery with sleep mode technology, loss of power in the field is never a concern. A vibration upon read feature is especially useful in noisy harsh environments. The power LED will let you know if the battery needs replacing.