Non-Reflectorless Total Station
Total station that is ideally suited for field survey data collectors and building construction.The 825 is part of the 822 series retaining many of the classic versatile built in programs.
• Control Panel - Backlit 6 lines LCD Display & Alphanumeric keyboard with single   touch button functions for easy input, access to information and control of main   parameters such as EDM mode .
• Rechargeable Batteries - The 825 Total Station is provided with 2 x Rechargeable   N1-H Batteries to ensure that the unit can be used continuously at work site   without having to stop & recharge.
• Large Internal Memory- Storage capacity of up to 16000 data points; data can be   sorted into different jobsite files.
• Water & Dust Proof - All significant part are protected by tight rubber rings. With   Waterproof Grade IP54, you are free to operate your job no matter in rain or   desert.
Measurement range Specification:
Single Prism:  5.0Km
Distance Measurement Accuracy: With Prism: +/-(2mm+2ppm)
Digital Display: Max: 99999999.999 Min: 1mm
Measuring Time: Fine: 1.2s, Tracking 0.7s
Measurement System: Basic Frequency:60MHz
Meteorologic Correction: Input parameters, adjusts automatically
Atmospheric Refraction and Earth Curvature Correction: Input parameterss Adjusts automatically (k=0.14/0.2)
Prism Constant: Input parameters, adjusts automatically
Temp & Air pressure correction: Manual Input, Auto Correction

Angle Measurement:
Measurement Modes: Incremental Photoelectric
Diameter of the Raster Disk: 79mm
Minimum Readout: 5”
Accuracy: 5”
Detection Method: Horizontal: Dual       Vertical: Dual
Measuring Unit 360°/400 gon/6400mil selectable
Vertical Angle 0° Zenith 0° / Horizontal 0° selectable
Telescope
Image: Erect
Length: 152mm
Effective Aperture:Telescope: 45mm (Distance Meter :47mm)
Magnification: 30X
Field of View:1° 30’
Resolving Power:3"
Min. Focusing Distance 1.3m
Auto Vertical Compensator
System: Liquid-electric detection/plate vial
Range: +/-3’
Accuracy: 1”
Optical Plummet
Image: Erect
Magnification: 3X
Focusing Range 0.3m~
Field of View: 5°

Data Storage
Internal Memory Approx. 16000 points
Other
Display Type: Dual side Keyboard, LCD (Backlit), Matrix Graphic
Operation Environment -20° ~ +45°
Power Supply 6V Rechargeable Ni-H battery
Operating Time 8 hours(non-stop)
Size 160 x 150 x 340mm
Weight 5.4 kg