| Parameter |
ELS02 / ELS03 |
ELS05 / ELS07 |
| Leveling Accuracy (1km double run) |
0.2mm (ELS02) / 0.3mm (ELS03) |
0.5mm (ELS05) / 0.7mm (ELS07) |
| Digital Reading Staff |
Invar barcode staff |
Fiberglass barcode staff |
| Distance Measurement Accuracy |
D≤10m: <±10mm; D>10m: ±0.1%×D mm |
Same |
| Measurement Range |
2–200m |
2–180m |
| Minimum Display Resolution (Height) |
0.01mm / 0.0001ft selectable |
Same |
| Minimum Display Resolution (Distance) |
1mm / 0.01ft selectable |
Same |
| Measurement Time |
2s |
2s |
| Telescope Magnification |
43× |
38× |
| Effective Aperture |
50mm |
45mm |
| Minimum Focusing Distance |
0.9m |
1.0m |
| Resolution |
3″ |
3.3″ |
| Compensator Range |
±14′ |
±14′ |
| Compensator Accuracy |
0.2″ |
0.2″ |
| Internal Storage |
2GB + 16GB USB drive |
2GB + optional USB |
| Data Management |
Supported |
Supported |
| Wide Angle Camera |
Standard |
Optional (ELS05), unavailable (ELS07) |
| Camera Field of View |
6°×5° |
6°×5° |
| Camera Frame Rate |
20 fps |
20 fps |
| Electronic Bubble |
Standard |
Optional / unavailable |
| Electronic Bubble Working Range |
0.13° |
0.13° |
| Electronic Bubble Accuracy |
0.015° |
0.015° |
| Electric Leveling Base |
Optional |
Optional / unavailable |
| Leveling Range |
3.5° |
3.5° |
| Voice Prompt |
Available |
Available |
| Circular Bubble |
8′/2mm |
8′/2mm |
| Display |
3.5-inch color touchscreen, 320×480 resolution |
Same |
| Keypad |
25 keys |
23 keys |
| i Angle Inspection Program |
Available |
Available |
| Communication Interface |
Type-C, Bluetooth, USB, RS-232 optional |
Same |
| Protection Rating |
IP54 (including battery) |
IP54 |
| Operating Temperature |
-20℃ to +50℃ |
-20℃ to +50℃ |
| Storage Temperature |
-40℃ to +70℃ |
-40℃ to +70℃ |
| Battery |
2600mAh / 7.2V lithium battery |
Same |
| Operating Time |
More than 12 hours |
More than 12 hours |
| Weight |
4.1kg (battery included, ELS02 information provided) |
Not provided |