Measuring window
Target to be
stared at
Bright ring
Green area
Fig. 6
3. Operation
This is a high-tech intelligent instrument, which is very easy to operate. Please operate
it according to the following procedures, thus you can get measured data easily
and rapidly.
3.1 About Battery
Before using the device, please put 4 pieces or 2 pieces of 5# AA batteries into
its battery box.
Warning:
• Only high energy alkali battery is applicable, and please do not use common
acidic one so as to avoid leak age of battery liquid which may cause damage
to the device.
• Be care about the polarity of the battery when replacing it.
• Properly dispose of the used battery to avoid environmental pollution.
11
