无需电池或电力刻度盘的指针精确地指示土壤的pH值深度测量的探头的茎杆范围：3至10p适用于花园和植物护理

No batteries or electricity neededNeedle of graduated dial indicates precisely the pH of the soilLong stem of probe for depth measurementpH range: 3 to 10pHSuitable for garden and plant care