User's Manual
Table Of Contents
4-inch Visible Light Terminal
User Manual
Page | 82 Copyright©2020 ZKTECO CO., LTD. All rights reserved.
Eco-friendly Operation
The product's "eco-friendly operational period" refers to the time during which this
product will not discharge any toxic or hazardous substances when used in accordance
with the prerequisites in this manual.
The eco-friendly operational period specified for this product does not include batteries or
other components that are easily worn down and must be periodically replaced. The
battery's eco-friendly operational period is 5 years.
Hazardous or Toxic substances and their quantities
Component
Name
Hazardous/Toxic Substance/Element
Lead (Pb)
Mercury
(Hg)
Cadmiu
m (Cd)
Hexavalent
chromium
(Cr6+)
Polybrominate
d Biphenyls
(PBB)
Polybrominated
Diphenyl Ethers
(PBDE)
Chip Resistor
×
○
○
○
○
○
Chip Capacitor
×
○
○
○
○
○
Chip Inductor
×
○
○
○
○
○
Diode
×
○
○
○
○
○
ESD
component
×
○
○
○
○
○
Buzzer
×
○
○
○
○
○
Adapter
×
○
○
○
○
○
Screws
○
○
○
×
○
○
○ indicates that the total amount of toxic content in all the homogeneous materials is below the
limit as specified in SJ/T 11363—2006.
× indicates that the total amount of toxic content in all the homogeneous materials exceeds the limit
as specified in SJ/T 11363—2006.
Note: 80% of this product’s components are manufactured using non-toxic and eco-friendly
materials. The components which contain toxins or harmful elements are included due to the
current economic or technical limitations which prevent their replacement with non-toxic materials
or elements.