Delmhorst Instrument Co. Model BD-7 Moisture Detector DP for Plaster & Concrete

vtg Delmhorst Instrument Co Moisture Detector BD-7 for plaster & concrete w/case

Vintage Delmhorst moisture meter bd-7 With Case

Vintage Delmhorst Instrument Co. Wood Moisture Detector BD-7 with Leather Case

Delmhorst DHM-1 Digital Hay Moisture Meter Tester w/ 10" Probe & Case - WORKS!

Delmhorst DHM-1 Digital Hay Moisture Meter Tester w/ 10" Probe & Case - PARTS!

Delmhorst Model KS-1 Soil Moisture tester meter (untested)

Delmhorst Instrument Co. Moisture Detector F-4/Hay Moisture Detector & Electrode