Humboldt Manufacturing - Testing Equipment for Construction Materials

Support Numbers:

• Domestic Sales Support:
  1.800.544.7220, press 1 at prompt
• International Sales Support:
  1.800.544.7220, press 2 at prompt

• Technical Support:
  1.800.544.7220, press 1 at prompt
• Service or Repair:
  1.800.544.7220, press 1 at prompt

• Electrical Density Gauge Support:
  1.800.544.7220, x6306
• GeoGauge Support:
  1.800.544.7220, x6306

• Geotechnical Equipment Support:
  1.800.537.4183
• Software Support:
  1.800.537.4183, x7464

• Nuclear Gauge Support:
  1.800.537.4183
• Nuclear Gauge Service:
  1.800.537.4183