
Description
The Hilti POA 101 square reflective foil target is a reflective target made by Hilti (part number 2310199).
Its absolute prism constant is 0.0 mm, which is +34.4 mm on the Leica scale.
Specifications
| Model: | POA 101 |
| Manufacturer: | Hilti |
| MPN: | 2310199 |
| Status: | Current |
| Absolute constant: | +0.00 mm |
| Leica constant: | +34.40 mm |
| Constant source: | Dealer listing |
| Range: | 30 (auto-lock; beyond needs manual centring) |
| ATR / tracking range: | 30 m |
| Last verified: | 21/10/2026 |
Notes:
- The prism constant comes from a dealer listing and has not been confirmed in manufacturer documentation. Check the label on the prism before relying on it.
Sources
Hilti POA 101 square reflective foil target FAQ
Below is a list of frequently asked questions about Hilti POA 101 square reflective foil target.
What is the prism constant for the Hilti POA 101 square reflective foil target?
The absolute prism constant for the Hilti POA 101 square reflective foil target is 0.0mm. The Leica constant is 34.4mm.
Can I use the Hilti POA 101 square reflective foil target with a Leica instrument?
Yes, just set the prism constant to 34.4mm.



