2
3-Color LCD Screen
•
White for measurement mode
•
Green for calibration mode
•
Red for calibration error
stands for stabilized reading
L/M/H
stands
for
successful
calibration:
L
is pH 4,
M
is pH 7
pH
is
pH 10. The icon(s) will disappear
after 30 days to remind you for re-
calibration
Probe Cap Ring
Loosen the probe cap ring before
pulling out the probe cap
Short Press
Long
Press
1. Power on
2. Manual hold
Press again to
cancel hold
Power off
In measurement
mode, press to
turn on/off the
backlight.
Start
calibration
In calibration
mode, press to
cancel calibration
Switch
between
°F and °C
Swiss LabSen® Spear Soil pH Probe
Backed by Apera's proprietary sensor
technology from Switzerland, this spear
pH probe is specifically designed for
making soil pH test easier and more
reliable.
•
Impact-resistant spear glass tip, 10
times stronger than conventional glass
bulb
•
PTFE ring prevents a clogged junction
caused by soil particle
•
Long-life reference system ensures
high durability
Probe Cap
•
The probe must be soaked in 3M
KCl soaking solution when not in
use
•
Fill in 3M KCl soaking solution to
about 1/3 of the probe cap, store
the probe in it, then twist on the
cap ring