Survival in the wild!

1. global positioning system (satellite)

It's not realistic, and it's not easy to find online

2. Universal Card 5 yuan

1. can-filling screwdriver: the lower hook is used with the upper blade to easily open the tin can.

2. Side knife: the cutting edge is sharp, which can cut the rope, and peeling the fruit after washing is not a problem.

3. Screwdriver: located in the corner of the card (this position uses the mechanical principle to increase the strength and save labor). Cutting into the word screwdriver from a scientific point of view can loosen the screws of common models.

4. Ruler: Metric scale is adopted, and the minimum scale is millimeter. ..

5. Bottle opener: it is suitable for opening the bottle caps of beer and beverages.

6. Positioning wrench: Four different types of hexagonal wrenches are suitable for the size of bolts and nuts used in daily life.

7. adjustable wrench: That is, a long hollow groove, which can be used to screw any flat object with different thickness turnbuckles.

8. Sawteeth: Two rows of staggered sawteeth increase strength and efficiency. I am not only used to sawing wood branches, but also scaling fish scales.

9. Direction indication: Sixteen graduations can be used to accurately determine different directions.

10. Positioning wrench: There are two different models of hexagon wrench, which are smaller than the model of function 6.

In addition, there is a round hole on the diagonal of the same screwdriver, which can be hung on the key ring.

3. Self-generating flashlight 5 yuan

Using hand-held power supply to generate electricity and light up three ultra-high brightness light emitting diodes (LEDs) with a white light diameter of 8 mm is much more efficient than hand-held flashlight. Built-in long-lasting 2032 battery can be used for lighting when you don't want to hold hands to generate electricity, and it can emit light for a long time. Cheap, practical, environmental protection, energy saving (no need for batteries, don't worry about battery dead), you can light it by hand! It can not only illuminate, but also keep fit. 4. Compass 18 yuan

instructions

Stay away from barbed wire >10m; More than 55 meters away from the high-voltage line; Stay away from cars or planes for more than 20 meters; Keep away from all kinds of magnets, external magnetic horns and other strong magnetic objects >:10m; Keep away from objects with weak magnetism, such as magnetic snap > 0.5m..

Maintenance and maintenance of instruments

Keep the instrument away from ferromagnetic substances to avoid losing magnetism. Don't beat the object with the measuring ruler, so as not to affect the measurement accuracy. Do not distort the reflector, so as not to affect the division of light and reading. Keep the surface clean, and don't wipe it with dirty cloth or hands. The instrument should be turned off when not in use. Put it in the box. Be careful not to collide with plexiglass convex mirror and cover. When the cover is stained, gently wipe the surface with white flannel or absorbent cotton, and wipe it with toothpaste if necessary. Structure and performance

1. azimuth measuring mechanism: it consists of compass, camera door and sight. The outer circle of azimuth division is divided into 360 degrees, and the minimum grid value is 2 degrees; The inner ring is divided into 60-00 minutes, and the minimum grid value is 0-20 minutes. See table for the conversion between density and degree. Measurement accuracy: 0- 10 mil+1 2. Distance estimator: It consists of photoelectric gate and sight. The included angle between the two tips of the sight and the center line of the camera door is 1-00, the length between the two tips is 12.34 mm, and the length between the camera door and the sight is 123.4 mm, thus forming a proportional ranging evaluator of 10: 1. The measuring accuracy is 5%. 3. Pitch angle measuring mechanism: composed of pitch dial, pitch pendulum and plane mirror. The measuring range is 90. The measuring accuracy is 2.5 4. Coordinate ladder ruler: It consists of a long ruler and two short rulers perpendicular to each other, with the ruler length of 120mm. Measurement accuracy: 0.5mm.

Use the operation 1. Azimuth measurement: unfold the compass needle, rotate the azimuth frame to align the scale line on the azimuth glass with the direction index, aim at the target through the sight with one eye tilting the flat mirror (45), and then see the azimuth graduation on the inverted character table opposite to the N pole of the magnetic needle from the flat mirror, so that not only the target azimuth can be read, but also the azimuth frame can be rotated with the right hand to align the scale line on the azimuth glass with the N pole of the magnetic needle, at this time, the direction pointer is aligned with the N pole of the magnetic needle. Open the compass, calibrate the map (there is no need to calibrate the map when ranging), insert a needle at the reference point on the map, and rotate the compass so that the edge of the side ruler is tangent to the target point, so that the azimuth angle from the reference point to the target point can be judged. 2. Calibrate the map: unfold the compass needle, rotate the azimuth frame to align the scale line on the azimuth frame with the direction indicator (pay attention to the correction of the magnetic declination), lay the compass needle flat on the map, with one end of the sight pointing to the north pole of the map, so that the length of the coordinate ladder is tangent to the magnetic meridian of the map, rotate the map to align the n pole of the magnetic needle with the scale line on the azimuth glass, and then calibrate the map. 3. Find the direction of travel to cover the target: spread the compass on the map, and make the surveying ruler pass through the map and the traveling target. At this point, the direction index refers to the direction to travel. Rotate the orientation box to make the (s, n) direction on the orientation glass consistent with the (s, n) direction on the map, then write down the orientation reading indicated by the orientation indicator, pick up the compass needle and rotate the body orientation indicator, and align the N pole of the magnetic needle with the scale line on the orientation glass. At this time, all objects (such as trees and houses) on the alignment line can be used as auxiliary targets in the direction of travel. After identifying the auxiliary target, close the compass and put it in the bag, but don't turn the azimuth box. After reaching the auxiliary target, you can find a new auxiliary target and move on until the destination. Always check the direction readings along the way. 4. Knowing the interval of the target, estimate the distance between the target and the standing point: ① aim at the target through the left and right tips of the door and the sight, and estimate the distance of the target according to the ratio formula of 10: 1 according to the multiple of the width between the left and right tips of the sight. Distance between the target and the standing point (m) = target interval width (m) x 10/ multiple of the width at both ends of the sight. Example: There is a road ahead parallel to our position. Find the distance between the road and the location. There are telephone poles along the highway, with a distance of 50 meters. According to the distance estimator, the left and right tips have five poles, that is, the distance between every two poles accounts for 1/4 times of the distance between the left and right tips. According to the proportional formula, the distance between the road and the location = 50x 10x4 = 2000m ② Find the distance of the target with the auxiliary point, aim at the target with the camera sight, rotate the azimuth box to align the scale line with the N pole of the magnetic needle, and record the azimuth reading indicated by the direction indicator. Then turn left or right at the right angle (that is, the difference from the original azimuth reading is 15-00) to find the auxiliary point, and measure the distance from the auxiliary point to the standing point by step measurement or other methods. At the auxiliary point, use the compass to aim at the original target through the aiming door. Similarly, rotate the azimuth frame so that the scale line is aligned with the N pole of the magnetic needle, and record the reading indicated by the direction indicator. According to the difference between the two readings of direction angle and the distance from the standing point to the auxiliary point, look up Table 2 to get the target distance. If the difference between the above two readings is 7-50 (i.e. 45), the target distance is equal to the distance from the standing point to the auxiliary point. 5. Measuring the pitch angle: aim the inclined plane downwards, aim at the target with a sight, and reflect the reading of the pitch angle through a plane mirror; Or stand on a plane and measure the inclination angle of the plane. 6. Measure the height: use maps and altimeters to measure the height. The horizontal distance from the standing point to the target can be found on the map, and then the pitch can be measured with a compass, the height can be found with an altimeter, or it can be calculated with a trigonometric function. Example: Find the height from the foot of the mountain to the top of the mountain. From the map, the horizontal distance from the top of the mountain to the standing point is 100 m, the elevation angle of the top of the mountain is 40 with a compass, and then the height measured by the altimeter at 100 m is 83.9 1 m.

7. Measuring the mileage between any two points on the map: the formula for calculating the relationship between the side length of the square network and the field distance of maps with different scales.

1:25000 map: distance = (measured mm /4)X 100 (m) 1:50000 map: distance = (measured mm /2) X 100 (m)/kloc- Magnetic declination measurement: ① The orientation of the north and south magnetic poles of the earth is not completely in the north-south direction of the earth, so the north-south direction pointed by the magnetic needle has a deviation angle from the real north-south direction. When accurate measurement is not needed, the direction pointed by the magnetic needle can be regarded as the true north. When accurate measurement is needed, you should first check the local magnetic declination book, and then calculate the real north-south direction according to the direction indicated by the compass needle. For example, when the compass needle is used in Changsha, the magnetic declination of Changsha in Schedule 4 is 2 465 438+0' (w), which means that the north of Changsha compass needle is 2 465 438+0' west of true north.

(2) looking for magnetic declination anywhere. On a clear night, open the compass and turn the azimuth frame so that (N) on the azimuth glass faces the direction indicator. Face Polaris with camera door, sight, flat mirror and luminous sign, and keep the direction of the compass straight. At this time, the reading indicated by the north pole of the magnetic needle is the magnetic declination.

Saber 36 yuan

This unparalleled life-saving folding knife's sharp blade and wear resistance, coupled with rich perceptual association, create a cold steel boutique tool. The handsome appearance incorporates a black titanium full-blade precision blade with higher safety and operability. The toggle structure on the blade can be quickly opened and closed, and the blade can be opened when the pocket is taken out. The glass chisel at the tail, the umbrella rope knife at the back and even all the blades are refined by expensive milling process to ensure absolute accuracy. . Let you play a powerful role in an emergency and help you make the fastest response. . .

Monocular telescope 36

Brand foreign OEM brand

Origin Nanyang

Size, length, 90 mm, diameter, 30 mm

Actual magnification is 8 times

The aperture of the objective lens is 21mm.

technical parameter

Specification 8x2 1

The viewing angle is 6.8 degrees.

Resolution 7.0

The diameter of the exit pupil is 2.1mm.

The exit pupil distance is15 mm.

Linear visual field128m/1000m

Prism category K9

The coated eyepiece and objective lens are anti-reflective yellow films.

Accessories desiccant, hand strap, exquisite hanging bag, English instruction manual, mirror cleaning cloth, packaging color box.

Focus mode eyepiece focusing

18

Lifesaving jigsaw 10

How to use: how to use both hands: put your thumb in the thumb rings on both sides, stretch the saw body to make it tight, and move the saw body back and forth briskly. One-handed usage: First, cut a branch about 10CM longer than the saw body, make V-shaped cuts at both ends of the branch, insert the thumb ring into the V-shaped cut at one end, bend the branch, and then insert the other thumb ring into another V-shaped opening to form an arcuate hand saw.

Dengshanbao 168

1 CI backpack system: the unique supporting materials make the whole backpack system more light and flexible, and effectively protect the balance of the backpack.

Built-in solid metal plate, stable center of gravity, comfortable and labor-saving.

3. There are convenient small storage pockets outside the thickened waistband, which can reduce the burden and load-bearing system-distribute the weight reasonably, reduce the pressure on the shoulders, and the unique design of the back-ergonomic, breathable mesh saddle back-forms a space, which is beneficial to heat dissipation on the back and is not afraid of hot weather. Weight-balanced waist protection-the weight is evenly distributed on the hips with the most load-bearing capacity, the backpack is stable, and the lower sleeping bag compartment-has a front zipper, which is convenient to take and put, and hides the side pocket-which is convenient to take small items and has multiple straps-which can be used to tie tents and sleeping bags. ...

1 CI backpack system: the unique supporting materials make the whole backpack system more light and flexible, and effectively protect the balance of the backpack.

Built-in solid metal plate, stable center of gravity, comfortable and labor-saving.

3. There are convenient small storage pockets outside the thickened waistband, which can reduce the burden and load-bearing system-distribute the weight reasonably, reduce the pressure on the shoulders, and the unique design of the back-ergonomic, breathable mesh saddle back-forms a space, which is beneficial to heat dissipation on the back and is not afraid of hot weather. Weight-balanced waist protection-the weight is distributed in the hips with the most load-bearing capacity, stable backpack, lower sleeping bag compartment-front zipper, easy to take and put, hidden side pocket-easy to take small items, surrounded by multiple shoulder straps-all belts such as tents and sleeping bags ... The belts and shoulder straps are made of nylon straps, which are more wear-resistant and stronger. All the fasteners are made of good materials, and the sound is crisp.

The miniature flashlight 25

Using 3W high-power LED, the light color is white and the brightness reaches 30 lumens. 4. Use 1 5th battery for power supply, which can last for 12 hours. It is recommended to use a rechargeable battery with high mA, which is more powerful, brighter and more economical. 5. The shell is made of high-hardness Al-Mg alloy, and is precisely machined by numerical control. 6, high brightness LED lamp holder, the service life is more than 6.5438+10,000 hours, so you don't need to consider replacing the lamp holder for life.

Sleeping bag 85

12.