
Description
The Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20) is a reflective target made by Leica (part number 763534).
Its absolute prism constant is 0.0 mm, which is +34.4 mm on the Leica scale.
Specifications
| Model: | GZM31 |
| Manufacturer: | Leica |
| MPN: | 763534 |
| Status: | Current |
| Absolute constant: | +0.00 mm |
| Leica constant: | +34.40 mm |
| Constant source: | Manufacturer documentation |
| Maximum range: | 250 m (250 m (shop/catalogue); TS16 manual: 150 / 250 / 250 m) |
| ATR / tracking range: | 55 m |
| Mount: | Adhesive |
| Equivalents: | GeoMax ZTM100 (60x60 mm, same +34.4 / abs 0.0) |
| Last verified: | 21/10/2026 |
Sources
Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20) FAQ
Below is a list of frequently asked questions about Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20).
What is the prism constant for the Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20)?
The absolute prism constant for the Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20) is 0.0mm. The Leica constant is 34.4mm.
Can I use the Leica GZM31 Reflective Tape 60 x 60 mm (pack of 20) with a Leica instrument?
Yes, just set the prism constant to 34.4mm.



