Metal-backing Gage
This gage is designed for successful strain measurement on the concrete surface. It has a thin stainless-steel backing which prevents the penetration of moisture from the reverse side. It provides good electrical insulation to the concrete surface. The WFLM gage has a moistureproof overcoating and integral lead in addition to stainless-steel backing. Stable measurement can be achieved by bonding the gage with PS adhesive.
| Main Test Materials | Concrete Mortar |
Materials Backing | Stainless steel |
| Operating Temperature | -20 to +80°C | Materials Element | Ni-Cr alloy foil |
| Compensation range | +10 to +80°C | Strain limit | 0.5% (5000×10-6) |
| Bonding adhesive | PS | Fatigue life at room temp. | 1×105 (±1000×10-6) |
| Type | Gage length (mm) |
Gage width (mm) |
Backing length (mm) |
Backing width (mm) |
Backing thickness (mm) |
Resistance (Ω) |
| FLM-30-11 | 30 | 0.5 | 60 | 18 | 0.12 | 120 |
| FLM-60-11 | 60 | 0.7 | 90 | 18 | 0.12 | 120 |
[ Waterproof Type ]
- 0.09mm23-wire paralleled Polythylene leadwire pre-attached
Total resistance per meter : 0.4(Ω)- Lead wire length : 3-wire paralleled Polyethylene lead wire of 2m long

| Type | Gage length (mm) |
Gage width (mm) |
Backing length (mm) |
Backing width (mm) |
Backing thickness (mm) |
Resistance (Ω) |
| WFLM-30-11-2LT | 30 | 0.5 | 60 | 18 | 4 | 120 |
| WFLM-60-11-2LT | 60 | 0.7 | 90 | 18 | 4 | 120 |