Power supply: DC 5.5-15V, Greater than 500mA Standby current: 25uA(DC12V) Peak current: 200mA(DC12V) Fingerprint capacity: 100 pieces (Admin Fingerprint: 20 pieces, User Fingerprint: 80 pieces) Output: Relay KL261 is designed for low power consumption, the power supply is DC5.5-15V. It have admin and user fingerprint. Have three relay mode:jog mode, self-locking mode, ignition mode. Helpful hints: If need to connect with car,motorcycle, and needs high security product,suggest to high pixel fingerprint module, like K202+R503,K215-V1.3+R503,K216 +R503 board and so on. The KL261 is low sensing array, only have 112 x 88 pixel, when register fingerprint, you have to put multiple time in register fingerprint. If you have high requirements for products and design, we suggest you can chose R503,R502-A serials products, like K202+R503,K215-V1.3+R503,K216 +R503 board and so on. Type: KL261 R558 / KL261 R558-S color:As shown Material:Metal+ABS Package Contents: 1 x Fingerprint control board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.