AL serial Auto Level with air damping 20X/24X/28X/32X
Specification:
| | AL20 | AL24 | AL28 | AL32 |
| Standard Deviation for 1km | 2.0mm | 2.0mm | 1.5mm | 1.0mm |
| Double-run Leveling |
| Image | Erect | Erect | Erect | Erect |
| Magnification | 20X | 24X | 28X | 32X |
| Objective Aperture | 40mm | 40mm | 40mm | 40mm |
| Field of View | 1°20’ | 1°20’ | 1°20’ | 1°20’ |
| Minimum Focus | 0.65m | 0.65m | 0.65m | 0.65m |
| Multiplication Constant | 100 | 100 | 100 | 100 |
| Additive Constant | 0 | 0 | 0 | 0 |
| Compensating Range | +/-15' | +/-15' | +/-15' | +/-15' |
| Setting Accuracy | +/-0.5" | +/-0.5" | +/-0.4" | +/-0.3" |
| Sensitivity of Bubble | 8'/2mm | 8'/2mm | 8'/2mm | 8'/2mm |
| Circle Reading | 1°/1gon | 1°/1gon | 1°/1gon | 1°/1gon |
About us
Geo-Allen Co., Ltd. was founded in 2002, in Suzhou, Jiangsu
Province, 80km away from Shanghai. Suzhou is a beautiful city,
nicknamed “heaven on earth”, with more than 2500 years of history.
This May, Geo-Allen will celebrate its 17 years anniversary. In the
past 17 years, Geo-Allen has grown to be a world famous company
with an R&D team, a trading department, manufacturing workshops
and an after-sales-service team. With the DNV’s ISO9001 certificate
and 15 years of development, Geo-Allen is gaining more and more
recognition in our field.
Geo-Allen's market almost covers the entire world, including West &
East Europe, North & South America, Asia, Africa, and Oceania.
By strictly adhering to our policies of best service / best quality
/ best prices Geo-Allen has gained a high reputation from all of
our customers.
Geo-Allen never stops expanding and developing. Its products now
include UAVs, GNSS devices, total stations, theodolites, auto
levels, laser instruments, and almost all kinds of accessories. Its
R&D department is highly capable of designing and producing new
products based on either customers' special inquiries or our own
ideas in a very short period of time. We hold several approved
patents for products that we’ve designed and we are in the process
of applying for more.
With our goal of Punctuality, Quality, Rigor, and Service
(P/Q/R/S), Geo-Allen has a vision of an even more beautiful future.
Geo-Allen is looking forward to a bright new year in 2017 with all
our friends around the world.
