Catalog > Consumer Electronics > Security & Alarms > Access Control > Fingerprint Access Control Power Supply with Battery Back-up 220VAC Battery Backup NOTE - Lead Acid batteries are not included ZKT PS901B ZK TECO POWER SUPPLY WITH BATTERY BACK-UP 220VAC 50Hz (110v optional) OUTPUT 12VDC 3A 12V 7AH BATTERY NOT INCL. Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Robust enclosureShort circuit protectionEasy installationUninterupted power supply on AC failsFuse protected outputs