Invar Master Bar for Strain Gauge

The Invar Master Bar is required for verifying the calibration of HM-240 Strain Gauge. Models are available in either English or metric units. The bar is made of Invar nickel-iron alloy with a very low coefficient of thermal expansion. Threaded stainless steel inserts with 2, 4, 6, 8 and 10in or 5, 10, 15, 20, and 25cm spacing are used to verify gauge spacing.

HM-241 is marked in English measurements, while HM-241F is indicated in Metric.

Features:

• Available in English or Metric models
• Invar nickel-iron alloy has exceptional thermal stability
• Stainless steel inserts to verify gauge spacing

Included Items:

• Invar Master Bar, English or Metric