Metode ini digunakan untuk menilai keamanan dan stabilitas pohon dengan memberikan beban pada batang melalui kabel, guna mengetahui risiko tumbang atau patah.
| Cable Length | 20 m |
| Winch | 1.6 or 3.2 metric ton |
| Calibrated | Yes |
| Cable-mounted | Yes |
| Capacity | 5 T |
| External Display | Rinstrum |
| Connection to Central Unit | RS232 |
| Sampling Rate | 1 Hz |
| Hex Key | 6 mm |
| Powered By | 4 AA size rechargeable batteries |
| Sensor | ST-015 |
| Measurement Range | ±2 degrees |
| Resolution | 0.001 degree |
| Temperature Compensated | Yes |
| Sampling Rate | 7 Hz |
| Power Source | 9V battery |
| Weather Proof, IP65 | Yes, IP65 |
| Type | LVDT |
| Dimensions | 30 x 30 x 270 mm |
| Span | 250 mm |
| Sampling Rate | 1 Hz |
| Resolution | 0.3 μm |
| Power Source | 2 pcs. of 9 V batteries |
