Onset HOBO U14, User Manual, Page: 7 / 22

Onset Computer Corporation
HOBO U14 5 User’s Guide
Circuit Board
Replaceable Internal RH Sensor (Model 001 Only)
The internal relative humidity sensor in the U14-001 may require replacement if it is damaged mechanically or by exposure to
condensation or chemicals. The replacement sensor (Onset part number HUM-RHPCB-3) is available from Onset or an Onset
Authorized Dealer.
See Replacing the Internal RH Sensor on page 11.
Relay Terminal
The HOBO U14 is compatible with Onset’s Remote Alarm (part number ARA) and Automatic Dialer (part number AVD-45) available
from Onset Computer or an Onset Authorized Dealer. See page 17.
The LCD Screen
After installing the batteries, the LCD will display all segments for five seconds. Thereafter, the LCD will display temperature and %
RH information. The values on the LCD screen refresh every 30 seconds.
Also See: LCD Indicators on page 15.