ETP303 is a kinds of multifunction home meter,this 3 in 1 Moisture Light & PH Meter Portable Photometer Hygrometer has the following features:

3 IN 1: Soil Hygrometer,  Photometer, pH Meter

A.Soil Hygrometer

Set the switch in the “MOIST” position. Plant the probes into the soil, at 3/4 of their length, between the pot and the plant. Pick up the indicated zone of color on the dial.

Red (1-3)

Never add any water until the pointer appears in the first half of the zone (for the plants which should not be too short of water)

Green (3-8)

Add water when the pointer appears at the first half of the zone (only for plants regularly requiring water)

Blue (8-10)

Don’t add any water, don’t water your plant.

B.Photometer

Put the photometer near the plant, the photo-eye toward the light source.

Set the switch in the “LIGHT) position. Not to mask the photo-eye, pick up the position of the pointer on the dial. For knowing the specific needs of your plants, consult a specialist.

C.PH

Earth

1.Prepare the earth sample for test:

Take away all the stones, clod, glass, etc.

2.Tenderly clean the probe shafts with an abrasive soft paper and dry cloth or a toilet paper, lightly wipe offthe earth.Set the switch in the “PH” position, then plant the probes.If THE EARTH IS TOO DRY,WET IT.

3.Read the PH degree after 60 seconds.

Liquids

Attention: The tester is not submarine. Only the probe can be planted into the liquid.

1.Preqare the liquid sample in a glass or a glass jar.

2.Make sure that the probes are clean

3.Set the switch in the “PH” POSITION, THEN PLANT THE PROBES INTO THE LIQUID.

4.Read the PH degree after 60 seconds.