3
EN
Levenhuk Wezzer PH20 Soil Meter
Getting started
Open the battery compartment cover and insert the battery according to the correct polarity. Close the cover.
Using
Press (2) to turn the device on. Press (3) to change the temperature unit (Celsius, °C / Fahrenheit, °F). Press (3) for 5 seconds to turn the
device off.
Light intensity measurement
Press (2) to turn the device on. Position the device so that its upper point is directed toward the light source. Do not block the light or create
shade over the light sensor in order for the sensor to work correctly. The value will be displayed on the LCD screen.
pH measurement
Slide the pH/°C switch to the pH position. Press (2) to turn the device on. Insert the probe into the soil gently in order to not damage the
roots of the plant. If the soil is too dry to measure the pH level, sprinkle some water onto the soil and then repeat the measurement in 30
minutes. The value will be displayed on the LCD screen.
Soil temperature measurement
Slide the pH/°C switch to the °C position. Insert the probe into the soil gently in order to not damage the roots of the plant. The value will be
displayed on the LCD screen.
Light intensity indication
LOW–
LOW
LOW+
NOR-
NOR
NOR+
HGH–
HGH
HGH+
Very low
light intensity
Low light
intensity
A little low
light intensity
Light
intensity is
lower than
normal
Normal light
intensity
Light
intensity is
higher than
normal
A little high
light intensity
High light
intensity
Very high
light intensity
pH value indication
Acidic environment
Neutral environment
Alkaline environment
Low
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
High
Soil temperature value indication
DRY+
DRY
NOR
WET
WET+
Very dry soil
Dry soil
Normal soil
Wet soil
Very wet soil
Specifications
Temperature measurement range
–9… +50°C (15… 122°F)
pH measurement range
3.5–9.0
Operating temperature range
+5… 40°C (41… 104°F)
Power supply
9V battery
The manufacturer reserves the right to make changes to the product range and specifications without prior notice.
Care and maintenance
Take the necessary precautions when using the device with children or others who have not read or who do not fully understand these
instructions. Make sure that the air flow channels at the back of the device are not blocked or covered. Do not try to disassemble the device
on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device
from sudden impact and excessive mechanical force. Store the device in a dry cool place. Only use accessories and spare parts for this
device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts!
If a part of the device or battery is swallowed, seek medical attention immediately.
Children should use the device under adult supervision
only.