Optical time-domain reflectometer (English name: optical time-domain reflectometer, OTDR) is an instrument that understands the uniformity, defect, fracture, and coupling of the optical fiber through the analysis of the measurement curve. It is made according to the principle of light backscattering and Fresnel reverse. It uses the backscattered light generated when light propagates in the optical fiber to obtain attenuation information. It can be used to measure optical fiber attenuation, connector loss, fiber fault location and understanding The loss distribution of the optical fiber along the length, etc., is an indispensable tool in the construction, maintenance and monitoring of the optical cable.
The optical time domain reflectometer will inject a series of optical bursts into the optical fiber for inspection. The method of inspection is to receive the optical signal from the same side of the incident wave, because the incident signal will be scattered and reflected back when it encounters a medium with a different refractive index. The intensity of the reflected light signal will be measured and is a function of time, so it can be converted into the length of the optical fiber. Optical Equipment,Otdr Tester,Otdr Instrument Tester,Cable Tester Power Meter Shenzhen Scodeno Technology Co.,Ltd , https://www.scodenonet.com
NANDE solar insect-killer lamp, helping you away from the annoyance of insects and giving you the
illumination. It is safe and non-polluting, easy for installation. With free from the electricity and pesticide,
you'd love to see the cost is reducing significantly.
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This is the most ideal tool to kill as many as 5000 kinds of farm insect, without pesticide contaminate,
effective radius 20000 - 40000 square meters, 0 pollution, highly reduce the cost of using pesticide.Â
It is pure solar energy powered, lights seduce insect and high voltage wire net kill it, battery store power
at day time, release power at night, the whole system is operated by intelligent controller, with light-operated
and timing auto switch.
Widely used in farm, forestry, warehousing, garden, park, livestock breeding, aquaculture, etc. 
1. Accord with GB/T 24689.2-2009 Plant protection machinery type insecticidal lamp standard of vibration
   frequency regulations;Â
2. Solar panel: high-efficiency monocrystalline /polycrystalline silicon;
3. Battery: maintenance-free gel batteries;Â
4. Light pole: hot galvanizing/ stianless street;Â
5. Lifespan: 10 - 25 years ( battery not included );Â
6. Seduce light type: T5/ T8 ligth tube, different wave band, 12V/ 15W, total power ≤35W;
7. Control system: light-operated, timing auto on-off;Â
8. Wave length: 320-680nm, seduce light launchs wave length 365±15nm, tube activate time ≤5S.Â
9. Area of seduce insect to impact ≥0.18 square meters.Â
10. Rust-proof 1.8mm diameter high-voltage stainless steel wire net, with inflaming retarding protection
    device;Â
11. Light in yellow cuboid shape, size 380mm* 380mm * 550mm;Â
12. With insect collect container, anti-aging and corrosion;
13. No voltaic arc when outer net voltage ≥3800V, inner net voltage ≥1500V;Â
14. Insulation pillar: High temperature resistance, anti-aging and corrosion, no carbonization in constantly
     high voltage;Â
15. Over charge-discharge protection, auto protection activated in 95% RH;Â
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Art.No.
ND-D1315/D
ND-D1330/D
ND-D1340/D
ND-D1350/D
ND-D1360/D
Solar panel type/power
15Wp Poly
30Wp Poly
40Wp Poly
50Wp Poly
60Wp Poly
Total power
20W
20W
20W
20W
20W
Light pole height
2.5m
2.5m
2.5m
2.5m
2.5m
Battery capacity
14Ah
22Ah
24Ah
24Ah
32Ah
Effective radius
20000 - 40000 square meters
Distribution box
GB standard
 *1 piece
GB standard
 *1 piece
GB standard
 *1 piece
GB standard
 *1 piece
GB standard
 *1 piece
Accessories
Standard
Standard
Standard
Standard
Standard
Remark: Main components include solar panel, battery, intelligent controller, light pole, high-voltage
entanglement, high-voltage trigger, transformer board, plastic container, hardware, etc.
Specific after-sales service commitment as follows:
Nande Solar promises all products released from our factory are brand new, in conformity with national
quality standards, with the manufacturers guarantee of quality certificate (or conformity certificate).
1. Packing specification, packing method for safety standard packing.
2. Products installation training: Our professional engineers will train buyers' staff the technical knowledge
and skills untill it meets the buyers' requirements.
3. Product warranty: 2 years ( start from next day the installation and debugging complete ). Nande will take responsibility for the corresponding quality problem (not caused by user's improper treatment) during
the warranty period.
4. Lifetime privilege: After the warranty period, you can enjoy the favorable price of 10% discount for material
and components for the replacement.
5. Lead time: 15 working days for quantity less than 500 sets.Â
The optical time domain reflectometer can be used to measure the length and attenuation of the optical fiber, including the fusion splice and transition of the optical fiber. It can also be used to measure the interruption point when the fiber is broken.
60W Solar Panel LED Insect-Killing Light with 2 Years Warranty
Model NO.: ND-B2022
Illumination Time: 12h
Cell Type: Gel Battery
Charging Time (H): 6
Usage: Garden, Street, School, Roadpath, Park, Factory, etc.
IP Rating: IP65
Certification: CE, RoHS, CCC
Voltage: 12/24V
With Light Source: With Light Source
Solar Panel: High-Efficiency Monocrystalline /Polycrystalline S
LED Power: 20W
Light Pole: Hot Galvanizing/ stainless Street
Height: 250cm
Battery: Maintenance-Free Gel Batteries
Light Volume: 380*380*550mm
Lighting Hours: 8 - 10h / Day
Lifespan: 10 - 25 Years ( Battery Not Included )
Control System: Light-Operated, Timing Auto on-off
Trademark: Nande
Origin: Guangdong, China (Mainland)
HS Code: 9405409000