Excellent value, compact and very easy to use for quick pH assessment.
Being analogue it uses the negative/positive charge in the soil clay particles, so requires no corroding batteries.
Users - Farmers (arable & grassland), lime spreading contractors, & agronomists for instant check to assess problem pHs.
Any field pH meter should be backed up by laboratory testing where more precise readings are required. Due to huge variations in soil types, moisture levels etc, we have not found any reason to replace DM-5 with more advanced digital pH meters.