TNPO-170A is a terrain surveillance device with electrical heated protective windows.

Armored vehicles configuration.

• Angle of the field of view in the horizontal plane: not less than 91 degrees

• Angle of the field of view in the vertical plane: not less than 23 degrees

• Upper angle of the field of view in the vertical plane: not less than 12 degrees

• Bottom angle of the field of view in the vertical plane: not less than 11 degrees

• Angle of the field of vision in the horizontal plane: not less than 44 degrees

• Angle of the field of vision in the vertical plane: not less than 5.5 degrees

• Angle of the binocular field of vision in the horizontal plane: not less than 14 degrees

• Periscope line-of-sight height: 162±6 mm

• Visual transmittance factor: not less than 0.44

• Power supply voltage (DC current): 27 V

• Power consumption: not more than 117 W

• Overall dimensions: not more than 163×63×230 mm

• Weight: not more than 2.9 kg