二合一土壤酸度计和肥料计ETP303

本款仪器是园艺的好帮手,可以测试土壤的PH值(酸碱度),以及土壤的肥力，看是否需要施肥.无需电池.

使用方法:

测土壤PH值时,先将按钮拨到PH，将探头尽量深地插到土里,探头上面部分留大约1厘米，指针对应的是PH值。

拨动笔上的按键到FERTILITY, 同样对应着有三个档：肥力不足需要施肥；肥力正好 ；肥力过多。

使用时注意插电极时不能碰到石头,不要用力过猛,用完后把电极擦洗干净。

Features
*Give accurate results of the PH and Fertility of the soil
*No batteries required
*The Ph portion of the tester utilizes the chemical reaction known as oxidation-reduction to measure PH within the range of 1-9
*The fertility portion of the tester measures the soil's nitrogen, phosphorous and potash (NPK) content, in combination. Fertility is within the range of too little, ideal and too much, with probe 85mm.