1.The probe is made of stainless metal, practical and has a long service life.   2.Simple operation, clear LCD sn, saving time and energy, high efficiency.   3.The unit has low battery indication and can be automatically off after idle use for 5 minutes.   4.4 in 1 soil survey instrument can test moisture, PH value, temperature and environment sunlight intensity of soil, which is more convenient.   5.This instrument is a great tool for measuring gg conditions of all kinds of indoor and outdoor plants as well as garden evanescence.   Test objects: sunlight, moisture, PH value, temperature   Sunlight (9 levels): LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH+   Moisture (5 levels): DRY+, DRY, NOR, WET, WET+   PH value (12 levels): 3.5-9.0 (display resolution 0.5)   Temperature: -9°C to +50°C (16ºF to 122ºF) (display resolution 1°C/1ºF)   Power supply: 1 * 9V battery (not included)   Automatic off: the unit will be automatically off after idle use for 5 minutes.   Operating temperature: +5°C to +40°C   Colour:yellow   Material:Plastic + metal   Size:30*20*0.6cm   Package Contents:   1 x P4 In1 LCD PH Garden Soil Tester Meter   Note:   1. The unit only can be used in soil, please do not place the probe into water or other solutions.   2. Don't leave the probe in the soil longer than necessary to avoid the possibility of dae to the probe.   3. Don't bend the probe, don't use the probe to break up the soil.   4. Don't put the probe near metal objects and be sure to keep the probe away from metal objects.   5. Wipe the probe clean and dry before taking another test reading and after use.   Only the above package content, other products are not included.   Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.