| Model | R2 |
| Telescope | Mirror tube length | 156mm |
| imaging | Positive |
| Effective diameter of objective lens(EDM) | Ф45mm |
| Magnification | 30X |
| field | 1°30′ |
| Discrimination (JIS) | 3.5″ |
| Shortest range of visibility | 1.0m |
| Range finder | Ranging light source | (visible lase)650~690nm |
| Spot diameter | 12mm/50mm ellipse |
| Laser grade | Class3 |
| Measuring range(good weather condition) | Non-prism | 600m |
| Reflector RP60 | 1000m |
| Mini prism | 1200m |
| Single prism | 5000m |
| Precision of distance measurement | Prism | ±(2+2×10-6·D)mm |
| Reflector,Non-prism | ±(3+2×10-6·D)mm |
| Measurement time | 1.0s/0.3s(precision / tracking); initial:2.5s |
| Minimum reading of distance measurement | Precision measurement mode:1mm
Tracking measurement mode:10mm |
| Range of temperature setting | -40ºC~+60ºC |
| temperature range | 1ºC(automatic correction) |
| Atmospheric correction | 500hPa-1500 hPa |
| atmospheric pressure | 1hPa(automatic correction) |
| Prism constant correction | -99.9mm ~ +99.9mm |
| Long level bubble | Tube type bubble precision | 30″/2mm |
| Circular bubble precision | 8′/2mm |
| Graphical electronic level | 30″/2mm;range:3′;Accurancy:1″ |
| Laser counter point device | Light spot size / energy | Adjustable |
| Laser class | Class2/IEC60825-1 |
| wavelength | 635nm |
| accuracy | ±0.8mm/1.5m |
| Angle measurement | Reading system | Absolute coding system |
| Minimum reading | 1″/5″ |
| Precision | 2″ |
| Display unit | 360°/400gon/6400mil |
| Midpoint of optical pair(selection) | accuracy | ±0.8mm/1.5m |
| Imaging | Positive |
| Magnification | 3X |
| field | 4° |
| Compensator | Compensator method | Dual axis compensation |
| Range of compensation | ±3′ |
| Display | type | LCD display on both sides
(8 lines and 15 columns of English ) |
| lighting | LCD backlight |
| Screen resolution | 240*128 |
| Power Supply | Battery | 4000mAh lithium battery |
| working voltage | 7.4V |
| Working time | >24 hours |
| Charger | FDJ6-Li |
| Communication and physical parameters | Memory point | Host RAM with 120000 points
Hot plugged SD card |
| Host weight (with battery) | 6KG |
| volume | 184X220X360MM(WXDXH) |
| temperature range | -20ºC~ +50ºC |
| I/O upload / download | Having the functions of uploading and downloading
dataRS232C/USB/SD card(Bluetooth customizable) |
| Waterproof grade | IP54(IEC60529) |
| sensor | Automatic correction of external temperature
and pressure sensor |
| Note: good weather conditions (no fog, visibility 30Km); |