ISO 9001
｜
ISO 14001
｜
OHSAS 18001
-2-
Handheld transmitter
（
Q-303
）
Parts and functions
1. Cartridge
2. Battery power LED
3. Power switch
4. Battery compartment
5. Color cap
Battery installation & indicator
This transmitter requires 2 x AA batteries to operate.
To install, remove the battery cover and slide the batteries into the battery compartment &
replace the battery cover.
Note
: Batteries contain a corrosive acid that may leak and damage the transmitter when stored
for a long period. Batteries should be removed from the transmitter before storing without use
for more than 4 weeks.
When the transmitter is switched ON, a red LED
will blink once to indicate the batteries
installed are in good condition.
If the LED remains illuminated, it means the batteries are
weak and require replacement.
2
3
4
5
1
