Specs:

3.6 Volt
Cell Type: Three (3) D Nicad Batteries (rechargeable)
Terminal: Plug (Please see picture)

Cross Reference/Replaces:

3440, 3430, 4640-B Troxler Nuclear Soil Moisture Density Gauge

Note: 3440 and 4640-B takes two (2) battery packs

Please check your dimensions (length, width, height) and polarity (positive/negative pin position) before ordering

Ask about our custom packs! Contact us 1-888-229-9449