Manufacturer night vision with high performance hunting night vision scope

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Overview
Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Daking
Model Number:
D-M2021
Size:
140x74x56mm
Weight:
366g, 365g
Type:
Monocular
Magnification:
1X, 1X
Effective Visual Distance:
220-280m
Operating Voltage:
2.0-4.2V
Resolution:
45-64
FOV:
40(deg)
Detection distance:
220-280m
Diopter:
+/-5(deg)
Lens system:
F1.2, 25.8mm
Luminous sensitivity:
450-600(UA/lm)
S/N:
17-21(dB)
Photocathode type:
S25

A. Model Explanation

The 1st letter “D”: the abbreviation of our brand Daking
The 2nd letter “M”: Monocular
The 1st number 2/3: generation 2 / 3 (IIT grade)
The 2nd and 3rd number 03: the 3rd item we have released
The 4th number 1: magnification for objective lens

B. Product description

D-M2021 is most popular mil-spec and versatile Night vision gear/infrared NV on the market. It can be used handheld, head mounted or helmet mounted for hands-free, or attached to a camera or camcorder for nighttime photography and law enforcement to document. This system enables walking, driving, short-range surveillance, map reading, vehicle maintenance, and administering first aid in both moonlight and starlight. With automatic protective system controls, the monocular will shut off automatically if the illumination level surpasses 40lux for the following 10 seconds. And automatic brightness adjustment system always keeps IIT brightness level constant.

C. Kit includes

Night Vision Monocular, Flip-up head mount, Protective carrying bag, Instruction manual, Lens cleaning cloth, Warranty card, Desiccant

D. Features

1.IP67 weatherproof: The device can work even under 1m water for 1 hour.
2. Automatic shut off when flipped up: The device will turn off automatically when pushing a button on the side of mount and lifting the unit up until reaches in the top position. Push the same button to lower monocular to the viewing position, then the device will turn on for continuation of operation.
3. No power consumption when in standby: It means no power consumption in case you forget to remove the battery for some days.
4. Embedded spring in battery’s cap: It makes screwing the cap easier and better protect the spring and contact with the battery.
5.Fully adjustable head mount: The head mount can be adjusted according to head size.
6.Mil-spec multi-coated optic: Multi antireflection film can restrain the reflex of lens, which can reduce the loss of light so more light can go though the lens to get a sharp image.
7. Automatic brightness control: When the ambient light changes, the brightness of the image detected will keep the same to insure a stable viewing effect and also to protect users’ eyesight.
8. Bright source protection: The device will shut off automatically in 10 seconds to avoid the damage of the image intensifier tube when the ambient light exceeds 40 Lux.
9. Low battery indication: A greenish light in the edge of eyepiece will start flickering when the battery is running low.

E. Specifications

 

Model

D-M2021

D-M2021

IIT

Gen2+

Gen2+

Resolution (lp/mm)

45-64

45-64

Photocathode type

S25

S25

S/N (dB)

12-21

17-21

Luminous sensitivity(μA/lm)

450-600

450-600

MTTF (hrs)

10,000

10,000

Magnification

1x

1x

FOV (deg)

40

40

Detection distance (m)

220-280

220-280

Diopter (deg)

+5/-5

+5/-5

Lens system

F1.2, 25.8mm

F1.2, 25.8mm

Range of focus (m)

0.25--∞

0.25--∞

Dimensions (mm)

140 x 76 x 56

140 x 76 x 56

Weight (g)

365

365

Power supply (v)

2.0-4.2V

2.0-4.2V

Battery type (v)

1 3V CR123A lithium battery

1 3V CR123A lithium battery

Battery life (hrs)

80(w/o IR)

40(w IR)

80(w/o IR)

40(w IR)

Operating temperature(°C)

-40/+40

-40/+40

Environmental rating

IP67

IP67

 

 


F. Mechanical parts code and name

 

G. Device operating instructions

 

1.Put one 3V CR-123 lithium battery observing the polarity indications on the battery compartment (2) surface.
2.Remove the protective cover (4) when it’s used at night or in low light condition. NOTE: To protect the image intensifier tube, keep the lens cap on the objective lens when the monocular is not in use or when checked out in daylight conditions. You might test the device through the pinhole in the center of protective cover (4) and the time should be less than 10 minutes.
3.Turn on the device by pushing operation button (1) and moving it to ON. After this, you can start observing the scene through the eyepiece (5). The greenish-lit screen of the image tube means that the device is working normally. A green light appear in the edge of eyepiece at the same time and it serves as the power indicator as well as low battery indicator. If the indicator light starts flickering, it means the battery is running low. It is the time to change your battery. Activate the IR illuminator by another pushing button (1) and moving it to IR when the monocular is working in the conditions of extreme low light or total darkness, at the same time, it starts focusing the light. A red light appears in the eyepiece and is emitted from IR illuminator (8) to indicate that the IR illuminator is operating. NOTE: The light from the illuminator can be detected by others that are using night vision devices.
4.Focus the objective lens (3) by rotating the objective lens ring for sharper image of viewed object. Adjust eyepiece (5) by rotating the eyepiece ring for sharper image of intensifier screen. Repeat these two steps for 3 times, then you might gain the sharpest image.
5.You may focus the IR light for additional distance by placing the focusing lens of the IR pivot plate ( 10 ) onto the window of the IR illuminator ( 8 ). This will extend the range the useful range of the IR.
6.The light detector (9) can detect the surrounding illuminance, the device will be shut off automatically when the ambient light exceeds 40 Lux in 10 seconds.
7.When you finish observing, push the operation button(1) and move it to OFF, then the device stops working.

NOTE: It is normal that the device can not be turned on when the ambient light exceeds 40 Lux. This device has protection system, which cuts off the image intensifier when ambient light level exceeds the limit of 40 Lux during a 10 seconds period.

Failure to follow the above precautions may cause the unit damage and will void the manufacturer’s warranty.

 

H. Flip up head mount installation

 

A. Fitting the head mount
Adjust the head mount first before attaching the NV unit to it.
8.Loosen all the straps and place the head mount on your head.
9.Fit the head mount to your head size and tighten all the straps.
10.And last you will need to fixate the chin strap with Velcro tape.

B. NV installation and adjustment
Now you are ready to mount the NV monoculars onto head mount.
To mount the monocular to a head mount, perform the following:
1.Loosen the screw ( A ). Push the button ( B ) and insert the rail of the head mount into the socket ( C ) of the mount assembly. Then tighten the screw (A) after adjusting it to a good position you need. Now the mount assembly is fixated onto the head mount firmly.
2.Turn the screw (D) counter-clockwise and insert the rail of the monocular into this socket till the position of dent in the middle of the rail. Now the device is fixated onto the head mount tightly.
3.Place the head mount with monocular onto your head. (as Figure01 shows)
4.The monocular head mount has a flip-up mechanism. Push the button ( F ) on the side of mount and lift the unit up until the unit reaches in the top position. When the device is placed in the top/up position it will turn off automatically.
5.Push the same button ( F) to lower monocular to the viewing position. Turn the device on for continuation of the operation.
6.The monocular can be placed before the right or left eye. In order to re-adjust the monocular for use with another eye, push the button (G) and move the device along the slide-rail ( H ) to comfortable position at the other side.
1.Do not disassemble the unit.
2.It’s better to use device under +5°C to +40°C. After the unit usage in temperatures below zero, wait at least 3 hours at room temperature,to avoid condensation accumulating on the internal lens surfaces and the consequent fogging caused by extreme temperature differences.
3.Keep the device in soft carrying bag, ventilated and dry place with temperature which does not exceed +15°C. Keep away from heating device and avoid direct sunlight and high humidity which does not exceed 70%.
4.NVD should be used in nighttime and can’t be aim at strong light. If you have to test it during daytime, the front lens cap should never be removed. You can observe the target through the hole in the protection cap.
5.Use good quality lithium battery or alkaline cell, as bad quality batteries will effect the performance of the NVD and easily damage the device.
6.Try to avoid the rain and mist, and avoid dropping, shaking and collision.
7.Use clean soft cloth and dampened in alcohol,if necessary.
8.A useful tip is to remove the battery when the night vision will be not in use for over 3 days to prevent battery leakage and damaging the device.
NOTE: It is normal that the device can not be turned on when the ambient light exceeds 40 Lux. This device has protection system, which cuts off the image intensifier when ambient light level exceeds the limit of 40 Lux during a 10 seconds period.

 

J. Troubleshooting

 

If the device does not turn on
1.Reinstall the battery with the correct polarity.
2.Replace battery.
3.Clean the battery compartment, focusing on the contact points.
The observed image flickers or flashes
This means there is too much light(e.g.obervation during twilight conditions).Turn off the unit or place the objective lens cover.The unit will function normally in light conditions not in excess of 0.1Lx(full moon).
The image is missing or not focused
1.Re-focus the unit by adjusting objective lens.Adjust diopter setting by rotating eyepiece,if necessary.
2.Check the cleanliness of the objective surface and eyepiece and clean if necessary.
3.Replace batteries.
4.In extreme low light conditions,activate the built-in IR illuminator.
Image disappeared or its quality worsened
1.Automatic shut off might occurred to protect the unit from excessive light. Attach the objective lens cover and ensure that unit started to function normally. Turn the unit off and wait until the conditions darken to continue observation.
2.Bright light sources(e.g.street lights)may cause visibility to decrease or disappear.Turn the monocular away from the light source,visibility will restore itself in several minutes.
You see black dots on the screen
These dots are minor cosmetic blemishes resulting from the image intensifier production processes and are not a sign of a defective or low quality unit.These dots do not interfere with the reliability and performance of the monocular.



I.Testing for all our devices

vibration test, high temperature test, lens resolution test, rain test, waterproof test, glass transmittance test, shock resistance test etc.

J. Warranty

Our warranty is 2 years from the date of purchase.

K.More pictures