Model DTM-362, DTM-352, DTM-332
Telescope
Tube Length 158mm/6.22 in.
Magnification 33x (21x/41x with optional eyepieces)
Effective diameter of objective 45mm/1.77 in. (EDM: 50mm/1.97 in.)
Field of view 1°20’
Resolving power 2.5�
Minimum focusing distance 1.3m/4.26 ft.
Distance measurement
Range with Nikon specified prisms
Normal conditions (Ordinary haze, visibility approx. 20km/12.5 miles)
With reflector sheet
(5 x 5cm) 5 to 100m (16.4 to 328 ft.)
With mini prism 1,000m/3,280 ft.
With single prism 2,000m/6,560 ft
With triple prism 2,600m/8,530 ft.
Good conditions (No haze, visibility of over 40km/25 miles)
With reflector sheet
(5 x 5cm) 5 to 100m (16.4 to 328 ft.)
With mini prism 1,200m/3,930 ft.
With single prism 2,300m/7.540 ft.
With triple prism 3,000m/9,840 ft.
Accuracy (Prism/Precise mode) ±(3+2ppm x D)mm
±(3+3ppm x D)mm (–20°C to –10°C, +40°C to +50°C
Measuring interval*1
Precise mode 1.6 sec. (initial 1.6 sec.)
Normal mode 1.0 sec. (initial 1.4 sec.)
Least count
Precise mode 1mm/0.002 ft.
Normal mode 10mm/0.02 ft.
Ambient temperature
range*2 –20°C to 50°C/–4°F to +122°F
Atmospheric correction
Temperature range –40°C to 60°C/–40°F to +140°F
Barometric pressure 400 to 999mmHg/533 to 1,332hPa/15.8 to 39.3 in.Hg
Prism offset –999 to 999
Angle measurement
Reading system Photoelectric detection by incremental encoder
Horizontal angle Diametrical(DTM-362/352), Single(DTM-332)
Vertical angle Single
Minimum increment
(Degree, Gon, MIL6400) Degree: 1/5/10�, Gon: 0.2/1/2mgon, MIL6400: 0.005/0.02/0,05mil
DIN 18723 accuracy
(horizontal and vertical) 5�/1.5mgon (3�/1.0mgon:DTM-362)
Tilt sensor
Type Dual-axis(DTM-362/352), Single-axis(DTM-332)
Method Liquid-electric detection
Compensation range ±3'
Setting accuracy 1"
Level vial
Plate level vial 30"/2mm
Circular level vial 10'/2mm
Optical plummet
Magnification 3x
Focusing range 0.5m/1.6 ft. to 
Display Graphic LCD (128 x 64 dot)
Both sides(DTM-362/352), Single side(DTM-332)
Point memory 10,000 records
Dimensions (W x D x H) 168 x 173 x 335mm/6.6 x 6.8 x 13.2 in.
Weight (approx.)
Main unit (with battery) 5.3kg/11.7 lbs.(DTM-362/352),
5.2kg/11.5 lbs.(DTM-332)
Battery 0.4kg/0.9 lbs
Carrying case 2.4kg/5.3 lbs
On-board Ni-MH battery
BC-65
Operation time
Continuous distance/angle
measurement Approx. 16 hours*3
Distance/angle
measurement every 30 seconds Approx. 27 hours
Angle measurement Approx. 30 hours
Battery charger for BC-80/65 Approx. 2.0 hours for full recharge
Quick charger Q-70C (12V DC cigarette lighter charger) Approx. 2.0 hours (fully discharged BC-65 requires more than one charge)

*1 Measuring time may vary depending on measuring distance and conditions.
*2 A special version of the DTM-352 is available that allows operation at extremely low temperatures down to –30 °C.
*3 At 25°C. Operation time may be shorter if battery is not new.