Terdens MULTI 3557, Manual User, Page: 11 / 24

2.2.12 CHANNEL Key

Under normal mode, press “CHANNEL” key, to switch channels between
CH1

CH2

CH3

cycle

Press “CHANNEL” key for 2 seconds , clear all current register data, and register again
2.3 Time setting
1
．
Under time mode, Press
“SET” Key for 2 seconds, to enter time setting mode
2
．
Time setting in sequence: hour

minute

MD/DM

year
（
2006 year-2099 year
） 
month

date

language

12/24H

exit
3
．
Setting item will flash 1HZ
4
．
Press
“SET” key to confirm and go to the next item
5
．
No any efficient key operation in 30 seconds , exit setting mode
2.4 Alarm setting
1.
Under alarm mode, press “SET” for 2 seconds to enter alarm setting mode
2. Alarm setting in sequence: Hour

minute

exit
3. Setting item will flash 1HZ
4. Press
“SET” key to confirm and go to the next item
5. No any efficient key operation in 30 seconds , exit setting mode
6. Under alarm setting mode, alarm turned on automatically
2.5 Temperature alert setting
5.
Press “ALERT” key for 2 seconds to enter “ALERT” setting mode
6. Alert setting in sequence: up limits

lower limit
 exit, Press “CHANNEL” can enter
the outdoor alert setting
7.
Default up limit is: 70

C, lower limit ,indoor is: -10

C, outdoor is:-40

C
8. Setting item will flash 1HZ
9.
Press “alert” to confirm and go to the next item
10. No any efficient key operation in 30 seconds , exit setting mode
11. 7. Under alarm setting mode, alarm turned on automatically
2.6 Barometer setting mode
1. Press "HISTORY" key for 2 seconds to enter units setting mode
2. The unit in sequence: mb/hpa or inHg, press HISTORY to confirm and exit setting
3. Insert batteries detecting barometer automatically for 20 seconds and setting item will flash 1HZ,
press UP or DOWN key to setting current barometer, press HISTORY exit
4. No any efficient key operation in 30 seconds , exit setting mode
2.7 City select
1. Press
“CITY” key for 2 seconds to enter city setting mode
2. Setting item will flash 1HZ
3.
Press “UP” or “DOWN” to select city and then press “CITY” key to exit setting
4. No any key press 30seconds, exit setting status
5. For Sunrise and sunset, the city time format is based on the local EST time, not DST
time! City name is English format
C. Function and Detail
3.1 RF Outdoor Temperature and Humidity receiving
1. Insert the batteries; enter RF receiving for 3 minutes after temperature and humidity auto-test.