Description
The Hilti Prism POA 21 small 360 deg is a 360° prism made by Hilti (part number 2042044).
Its absolute prism constant is +2.0 mm, which is +36.4 mm on the Leica scale.
Specifications
| Model: | POA 21 |
| Manufacturer: | Hilti |
| MPN: | 2042044 |
| Absolute constant: | +2.00 mm |
| Leica constant: | +36.40 mm |
| Constant source: | Manufacturer documentation |
| Last verified: | 21/10/2026 |
Sources
Hilti Prism POA 21 small 360 deg FAQ
Below is a list of frequently asked questions about Hilti Prism POA 21 small 360 deg.
What is the prism constant for the Hilti Prism POA 21 small 360 deg?
The absolute prism constant for the Hilti Prism POA 21 small 360 deg is 2.0mm. The Leica constant is 36.4mm.
Can I use the Hilti Prism POA 21 small 360 deg with a Leica instrument?
Yes, just set the prism constant to 36.4mm.
