High Quality Fingerprint Time Attendance Recorder

 High quality Fingerprint Time attendance  recorder

Product Description
 
CHD688BS is a fingerprint time attendance recorder working by optical sensors. It well bears abrasion and resists electrostatic. In addition to long life-span, it also has a high accuracy and fast speed in fingerprint comparison, and large capacity memory. Many fingerprints for different use can be settable. Besides, the fingerprint Time Attendance Recorder CHD688BS has functions of multi-people identification with permission identified and anti- intimidation. In addition, a switch is for alarm to prevent the machine from being broken. Usually the Time Attendance Recorder is applicable in the places with high secure requirement.
The communication interface is RS485 output. The Time Attendance Recorder, with exquisite and beautiful aluminium alloy shell, also has function of fingerprint collection for time attendance on computer, and LED display with blue background light and euphotic keys are on it.
 
It mainly includes a LED display screen, a keypad, an optical sensor, a replacement key for restart-up, aluminium alloy shell, etc. This is the appearance of CHD688BS series in the following picture:
 
 
Introduction of the keypad
Digitkey: 0-9 digitkey for entering digits
Function key: F1 is for cursor turning left when setting time
           F2 is for system entry setting
            F3 is for cursor turning right when setting time
           ESC is for exit or backout
           ENT is for entry conformation
 
 
Parameters in performance
 
Size:153mmx7mm x1.5mm
 
Weight:267g     
 
Colour:Silvery gray but black bottom
 
Display:LED display,blue background light
 
Keypad:15 red keys  
 
Power supply:DC12V 0%, Working current: <300mA
 
Communication interface: Standard RS485 interface is mainly for time seeting, fingerprint collection and download. RS485
 
Communication velocity: 9600 /19200/38400BPS are optional
 
Output interface: OC output
 
Output:28/26/44 Bit is optional
 
Transmission distance:<60m
 
Sensor:Optical sensor
 
Working temperature:-20~55°C
 
Working humidity:5%~95%
 
Sensitivity index: False reject rate 1.4%, False accept rate 0.00001%
 
Capacity of fingerprint:1500 fingerprints
 
Entry records: <4000 records
 
Time of fingerprint comparison : One second but three seconds when capacity is more than 1500 fingerprints
 
Valid area of sensor:20mmx8mm
 
Angle of fingerprint replacement:180°  .