Power On/Off:
● Press ON/OFF key to turn on the unit, the display shows measured value.
● Press and hold the ON/OFF key for 5 seconds, the unit will turn off.
● If no key is pressed for 8 minutes, the unit will automatically turn off to conserve power.
Note: The auto-off function can be disabled if required
– see below for further details
Setup Menu:
The HL101 pocket pH/temperature tester includes a comprehensive setup menu with
customisable options to suit user measurement requirements.
Menu item
Description
Available
options
Details
DEFAULT?
pH Buffer
USA Standard
(pH4.01/7.00/10.01)
●
NIST Standard
(pH4.01/6.86/9.18)
Calibration Points
1 point
2 points
●
3 points
Temperature Unit
Degrees Celsius
●
Degrees Fahrenheit
Temperature
Calibration
Enters the temperature
calibration mode
Auto-Hold
Automatically freezes a
stable reading
Disable
●
Auto-Off
Automatically turn off the
unit
●
Disable
Reset
Restore factory settings
Disable
●
