Products & Services

Concrete Embedment Strain Gages

These Strain Gages are designed for direct embedment in concrete. The 4200 (standard model) has a 153 mm gage length and 1 µε sensitivity and is commonly used for strain measurements in foundations, piles, bridges, dams, tunnel linings, etc. The 4210 has a 250 mm gage length making it particularly suitable for use in large aggregate concrete. The 4202 is designed for laboratory use and/or where there are space limitations. Low modulus versions, for measuring concrete curing strains, are also available (please contact Geokon, Inc. for details).

Specifications 4200 4202 4210
Standard Range 3000 µε 3000 µε 3000 µε
Resolution 1.0 µε 0.4 µε 0.4 µε
Accuracy¹ ±0.5% F.S. ±0.5% F.S. ±0.5% F.S.
Nonlinearity <0.5% F.S. <0.5% F.S. <0.5% F.S.
Temperature Range -20°C to +80°C -20°C to +80°C -20°C to +80°C
Active Gage Length 153 mm 51 mm 250 mm²

¹Accuracy of ±0.1% F.S. available with optional, individual calibration.

²Other lengths available on request.