
9
Humidity Trigger-ON/OFF
1. If you want to enter the setting for humidity 
trigger-ON, press [ ] and select Mode 5. 
The icon [ ] flashes and the screen shows 
the recorded trigger-ON humidity. 
If you want to enter the setting for humidity 
trigger-OFF, press [ ] and select Mode 6. 
The icon [ ] flashes and the screen shows 
the recorded trigger-OFF humidity. If no value 
is preset, the screen will display “ - - -%”.
2. To adjust trigger-ON/OFF value, press and 
hold [ ] for 5 seconds until a long beep is sounded. The "- - -" 
starts flashing. Use the [ ] or [ ] button to scan through the 
humidity reading from 20%RH to 90%RH. Once the value is 
selected, press [ ] to confirm setting or press [ ] to cancel.
3. To clear the trigger-ON/OFF record, press both [ ] and [ ] 
at the same time. The record is cleared after a long beep is sounded.
4. If the humidity reaches the preset trigger-ON/OFF value, the 
SHD1110 will send out RF signals. The screen of detector returns to 
Mode 2 and the icon [ ] or [ ] is flashing with backlight 
illuminates and beep tone sounds for 1 second. Press any key to 
stop the beep tone.
Note: The humidity of trigger-ON and trigger-OFF cannot be the same; there 
MUST be at least 5% difference. For example, if now the trigger-ON 
humidity is set to be 50%, the trigger-OFF humidity cannot be between 
45% and 55%.
Note: Once the SHD1110 has been triggered, the humidity must raise up or 
drop down at least 5% from the preset value before it can be triggered 
again. For example, if the detector has been triggered on at 50%, then 
the temperature must be over 55% or less than 45% before it can be re-
triggered.