... AA 1, 5V, 6LR61, and 9V rechargeable battery Use: Standard Battery The yk999 has an easy to use, ... microprocessor, employing advanced RISC architecture with integratedanalogue-digital and converters and multi-channels high speed input ... CE approval with the following protection schemes:* Alkaline battery protection, faulty battery protection, overcharge protection, short circuitprotection, wrong ...