Suchergebnisse für "school electronics"

1. Frequency range: - FM: 87.5-108MHz (100KHz STEP) - AM: 520-1720KHz - SW: 2.3-30MHz - CB: 25-28MHz - AIR: 118-138MHz - VHF: 30-223(FM-N/FM-W) 2. Receiving sensitivity: - FM: 2uV - AM: 3uV/M - SW:40dBuV - CB: 1uV SQ: 1uV - AIR: 2uV SQ: 1uV - VHF: 2uV SQ: 2uV(NFM) 3. Product size: 103x60x15mm 4. Speaker: 40MM / 8ohm / 1W 5. Battery: 700mah 3.7V lithium battery 6. External power supply: DC 5V 7. Minimum operating voltage: 2V 8. Stereo separation: >=32dB 9. The distortion degree of: <=0.5% 10. Output power: <=200MW 11. Standard accessories: headset, rope, gift box, english manual, usb cable, external antennaSpecification: Package Weight One Package Weight 0.23kgs / 0.50lb One Package Size 13cm * 8.5cm * 3cm / 5.12inch * 3.35inch * 1.18inch Qty per Carton 45 Carton Weight 10.10kgs / 22.27lb Carton Size 42cm * 27cm * 26cm / 16.54inch * 10.63inch * 10.24inch Loading Container 20GP: 904 cartons * 45 pcs = 40680 pcs40HQ: 2099 cartons * 45 pcs = 94455 pcs

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1. Bildsystem: LCD 2. Ursprüngliche Auflösung: 320 * 240, Auflösung 1920 * 1080 3. Helligkeit: 80 Lumen (24ANSI-Lumen) 4. Stromverbrauch: 18W 5. Lärm: weniger als 25 dB 6. Wurfweite: 0,5-3m 7. Seitenverhältnis: 4:3/16:9 8. Kontrastverhältnis: 500:1 9. Leistung: 12 V, 1,5 A. 10. Bildgröße: 16-100 Zoll 11. Lautsprecher: 4 Ohm 3W 12. Eingangsschnittstelle: AV / USB / TF / Leitungsspiegelung / 5 V 2 A 13. Ausgangsschnittstelle: 3,5-mm-Kopfhörerbuchse 14. Größe: 110x90x50mm 15. Gewicht: 250g Spezifikation: Paketgewicht Gewicht eines Pakets 0,50 kg / 1,11 lb Einheitspackungsgröße 21 cm * 15 cm * 7 cm / 8,27 Zoll * 5,91 Zoll * 2,76 Zoll Menge pro Karton 20 Kartongewicht 11,50 kg / 25,35 lb Kartongröße 45 cm * 38 cm * 32 cm / 17,72 Zoll * 14,96 Zoll * 12,6 Zoll Container laden 20GP: 487 Kartons * 20 Stück = 9740 Stück 40HQ: 1131 Kartons * 20 Stück = 22620 Stück

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OverviewThe RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent.RPi Relay Board Features1. Supports Raspberry Pi A+/B+/2B/3B/3B+2. High quality relays, loads up to 5A 250V AC or 5A 30V DC3. Photo coupling isolation, prevent interference from high voltage circuit4. Onboard LEDs for indicating relays status5. Relay control jumper, allows to control the relays by custom pins other than the default pins6. Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835What is on the RPi Relay Board1. Raspberry Pi GPIO interface: for connecting Raspberry Pi2. Relay screw terminal: for connecting target devices3. Relays4. Photocoupler: PC8175. Relay indicator- LED on: relay NC is opened, NO is closed- LED off: relay NC is closed, NO is opened6. Power indicator7. Relay control jumper- Short the jumper: control the relays by default I/Os used in the example code- Open the jumper: control the relays by custom I/Os through jumper wiresPackage include- RPi Relay Board x 1- RPi screws pack (2pcs) x 1Specification: Package Weight One Package Weight 0.08kgs / 0.18lb One Package Size 8cm * 7cm * 2cm / 3.15inch * 2.76inch * 0.79inch Qty per Carton 700 Carton Weight 52.50kgs / 115.74lb Carton Size 56cm * 35cm * 40cm / 22.05inch * 13.78inch * 15.75inch Loading Container 20GP: 340 cartons * 700 pcs = 238000 pcs40HQ: 789 cartons * 700 pcs = 552300 pcs

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1. Measurement range: 2.5 - 99999 rpm2. Resolution: 0.1 rpm for 2.5 - 999.9 rpm; 1 rpm for 1000 - 99999 rpm3. Measurement distance: 50 - 500 mm4. Time base: 6MHz quartz crystal oscillator5. Data storage: 20 sets6. Range selection: automatic switching7. Power supply: single 6F22 9V battery (not included), rechargeable batteries not supported8. Power consumption: Approximately 35mA9. Test value: value after 4 consecutive tests after power-on10. A tachometer is a commonly used instrument in the machinery industry, used to measure the rotational speed and linear velocity of motors. It can precisely measure the rotational speed of impellers, rollers, and shafts, and is widely used in industries such as motors, fans, washing machines, textiles, automobiles, airplanes, and ships.11. It adopts non-contact measurement, allowing measurement without contact with rotating parts.12. A high-definition large-screen backlight ensures accurate readings regardless of environmental changes, whether day or night.Specification: Package Weight One Package Weight 0.18kgs / 0.41lb One Package Size 21cm * 15cm * 7cm / 8.27inch * 5.91inch * 2.76inch Qty per Carton 50 Carton Weight 9.75kgs / 21.49lb Carton Size 51cm * 25cm * 36cm / 20.08inch * 9.84inch * 14.17inch Loading Container 20GP: 580 cartons * 50 pcs = 29000 pcs40HQ: 1348 cartons * 50 pcs = 67400 pcs

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Product Parameters:1. Material: ABS2. Size: 11.2x5.8x2cm3. Weight: about 57g4. Screen: 2.0-inch IPS HD screen5. Pixels: 2 million pixels6. Magnification: 500X7. Image format: JPG8. Video format: AVI9. Support TF card: up to 64G (TF card not included)10. Light source: 8 LEDs11. Focus mode: fixed focus (0mm)12. Battery capacity: 600mAh13. Working time: 1.5H14. Charging time: 1.5H15. Charging interface: Type-CProduct Features:1. Support photo and video recording (press and hold the photo button for 2 seconds to start recording)2. Adopt 2-inch IPS HD screen, with realistic color reproduction and clear observation effect. 2 million pixels meet your daily observation needs and provide better clarity for detailed inspection.3. Built-in 8 LED lights, providing additional lighting when used in dark spaces, easy to use.4. Ergonomic design, comfortable grip, reducing hand fatigue during long-term use, its humanized design ensures a comfortable viewing experience.5. Built-in 600mAh rechargeable battery, the device provides the convenience of long-lasting use, no need to frequently replace batteries, long service life.6. Wide application: Whether reading newspapers, documents, maps, coins, stamps, electronic parts, jewelry, photos, knitwear, plants, prints, or reading coupons, prescription drugs, small print on medicine bottles, its adaptability guarantees optimal performance in a variety of applications.Product Accessories:Microscope x 1Data cable x 1Instruction manual x 1Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 14cm * 9cm * 3cm / 5.51inch * 3.54inch * 1.18inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 42cm * 36cm * 32cm / 16.54inch * 14.17inch * 12.6inch Loading Container 20GP: 551 cartons * 100 pcs = 55100 pcs40HQ: 1279 cartons * 100 pcs = 127900 pcs

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1. Adopting high sensitivity condenser silicon microphone, 360-degree stereo omni-directional surround sound pickup, clearer sound2. Simple operation, no need to turn on the state, you can also start recording with one key3. Acoustic DSP dynamic noise reduction processing module, effectively reduce environmental noise4. PCM recording is an uncompressed original coding format, bit rate up to lossless 1536kbps, PCM signal has not undergone any coding and compression (lossless compression)5. Segmentation function, you can record the file according to the set recording time for automatic segmentation, such as: 30, 60 minutes incremental way to store as a file6. Timing automatic recording function, just set the recording start time and end time, then you can realize automatic recording, you can also set the periodic recording (such as: single, daily, weekday)7. Password setting, after setting the password, you need to enter the password to access the computer, which can protect your privacy and recording files8. Comes with HIFI sound quality speakers, smooth and clear / lossless acoustic / rich in detail, equalizer a variety of playback modes (funk / Hip Hop / rock / jazz / classical / electronic music)9. Through the OTG can be directly connected to the Android phone, easy to manage files and download music, you can also transfer files to the phone/computer for storage10. Suitable for a variety of scenarios, such as: business meetings, classroom learning, training and learning, interviewsParameters:1. Material: ABS + zinc alloy2. Screen: 0.96 inch color screen3. Transmission: USB2.04. Recording format: WAV5. Battery capacity: 230mAh6. Memory: expandable to 256G7. Speaker: yes8. Recording time: about 16 hours; playback time: about 3.5 hours; charging time: about 2 hours9. Size: 11 x 26 x 98mm10. Weight: 56.2gPacking list:- Host x 1- Data cable x 1- Instruction manual x 1Specification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 15cm * 9cm * 5cm / 5.91inch * 3.54inch * 1.97inch Qty per Carton 100 Carton Weight 17.00kgs / 37.48lb Carton Size 47cm * 48cm * 32cm / 18.5inch * 18.9inch * 12.6inch Loading Container 20GP: 369 cartons * 100 pcs = 36900 pcs40HQ: 857 cartons * 100 pcs = 85700 pcs

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1. Built-in time chip, with automatic time synchronization function, can be used as the basis for time, easy to browse to find documents2. Built-in high-energy lithium polymer batteries to meet your recording needs3. Power failure auto-save, when the system detects insufficient power, the recorder will automatically save the file in advance and then automatically shut down to ensure that the recording data is not lost4. Mini and compact, easy to carry around5. OTG connection to the phone, convenient transmission6. Strong magnetic adsorption, not easy to loseParameters:1. Shell material: CNC aluminum alloy2. Battery capacity: 120mAh3. Recording mode: boot recording, shutdown save4. Recording format: WAV5. Playback format: MP3/WMA/WAV6. Sampling rate: 48kHz7. Recording bit rate: 192kbps8. Charging time: about 1 hour; recording time: about 18 hours; playback time: about 12 hours9. Memory time:- 4GB: up to 48 hours- 8GB: up to 96 hours- 16GB: up to 192 hours- 32GB: up to 384 hours10. Size: 29 x 29 x 7.6mm11. Weight: about 9.7gSpecification: Package Weight One Package Weight 0.14kgs / 0.32lb One Package Size 15cm * 9cm * 5cm / 5.91inch * 3.54inch * 1.97inch Qty per Carton 100 Carton Weight 16.00kgs / 35.27lb Carton Size 47cm * 48cm * 32cm / 18.5inch * 18.9inch * 12.6inch Loading Container 20GP: 369 cartons * 100 pcs = 36900 pcs40HQ: 857 cartons * 100 pcs = 85700 pcs

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Features1. Portable and Lightweight: The mini projector is lightweight and compace in size. Smaller than phone, it can be put at any place. You can also take it out for a trip. 2. Support 1080P High Definition: 1080P high definition enables you to enjoy clear and vivid pictures. True color contrast ratio ensures excellent viewing experience. 3. Support Power Bank: Support 5V2A power bank for power supply. Use at any place. 50,000+ hrs lamp life. 4. High Power Speaker: A2000 Mini Portable Projector 800 lumen Supports 1080P LCD 50000 Hours Lamp Life Home Theater Video Projector for Power Bank 5. Excellent sound quality and enjoy pure sound. Create home theater atmosphere. 6. Eye-caring Light: The projector reflects soft light that would not hurt children''''''''s eyes. Protect your eye health.Specifications1. Model: A2000 2. Imaging Technology: 2 inch Single LCD 3. Native Resolution(Pixels): 320 x 240 4. Brightness/ANSI: 800 Lumens/50ANSI 5. Contrast Ratio: 100:1 6. Light Uniformity: 85% 7. Display Ratio Screen Scale: 4:3/16:9 8. Projection Size Range: 14-100 inch 9. Projection Distance Range: 0.5-3.2m 10. Recommended Screen Size: 30-60 inch 11. Keystone Correction: No 12. Lens Correction: Manual Correction 13. Projection Methods: Support screen flip up and down left and right 14. CPU: Allwinner F1C100 15. DOLBY Digital: No 16. Support Resolution: 1080P 17. Working Voltage: DC Input 12V2A 18. Size: 13.5 x 9.7 x 5cm / 5.31 x 3.82 x 1.97in(L x W x H) 19. Weight: Approx.325g / 11.46ozPackage List1. Mini Projector x 1 2. Power Adapter x 1 3. Remote Control x 1 4. AV Cable x 1 5. User Manual x 1Specification: Package Weight One Package Weight 0.74kgs / 1.62lb One Package Size 17cm * 16cm * 8cm / 6.69inch * 6.3inch * 3.15inch Qty per Carton 20 Carton Weight 15.00kgs / 33.07lb Carton Size 42cm * 35cm * 33cm / 16.54inch * 13.78inch * 12.99inch Loading Container 20GP: 549 cartons * 20 pcs = 10980 pcs40HQ: 1276 cartons * 20 pcs = 25520 pcs

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1. Nagelneu und hochwertig. 2. Eingang: Wechselstrom 100-240 V, 50/60 Hz 3. Ausgang: DC 12 V 3 A 4. Außendurchmesser des Anschlusses: 5,5 mm 5. Innendurchmesser des Anschlusses: 2,1 mm 6. Kabellänge: ca. 1,2 m Spezifikation: Allgemein Arten Adapter Konnektor 5,5 x 2,1 mm Eingangsspannung Wechselstrom 100-240 V, 50/60 Hz Ausgangsspannung Gleichstrom 12 V Ausgangsstrom 3A Stecker verfügbar EU-Stecker, US-Stecker, UK-Stecker, AU-Stecker Kabellänge ca. 1,2m Gewicht Schweinefleisch-Schinken ca. 220g Paket enthalten Packungsinhalt 1 x Adapter 1 x AU-Stecker 1 x EU-Stecker Steckdose 1 x UK-Stecker-Steckdose 1 x US-Stecker Steckdose Paketgewicht Gewicht eines Pakets 0,23 kg / 0,51 lb Einheitspackungsgröße 14 cm * 9,5 cm * 5,3 cm / 5,51 Zoll * 3,74 Zoll * 2,09 Zoll Menge pro Karton 40 Kartongewicht 11,20 kg / 24,69 lb Kartongröße 40 cm * 29 cm * 30 cm / 15,75 Zoll * 11,42 Zoll * 11,81 Zoll Container laden 20GP: 766 Kartons * 40 Stück = 30640 Stück 40HQ: 1778 Kartons * 40 Stück = 71120 Stück

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1. Material: ABS2. Power supply: rechargeable lithium battery 2000mAh3. Display mode: LED screen4. Atmospheric pressure: 86Kpa - 106Kpa5. Sampling time: 1.5 seconds6. Detection temperature: -10 to 50 degrees celsius7. Relative humidity: 20 percent to 85 percent8. Storage temperature: -10 degrees celsius to 60 degrees celsius9. 5V DC power supply for charging10. Product size: 270x90x35mm11. Weight: 268 gramsPacking list:- Host x 1- Manual x 1- Charging cable x 1Specification: Package Weight One Package Weight 0.60kgs / 1.32lb One Package Size 33cm * 10cm * 4.5cm / 12.99inch * 3.94inch * 1.77inch Qty per Carton 54 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 54 pcs = 9558 pcs40HQ: 412 cartons * 54 pcs = 22248 pcs

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1. The high linear scales is designed, high , stable and accurate. 2. The signal line adopts multi-layer isolation steel and metal soft shell protection, waterproof and anti-interference fine. 3. Easy to install and maintain, waterproof, dust-proof good, long service life. 4. Widely used, high stabilization, capacity of resisting disturbance well. 5. Suitable for JCS900-2AE / JCS900-3AE data display instrument. 6. Material: metal 7. Accuracy: +-5um 8. Resolution: 5um 9. Measuring Range: 0mm-400mm Specification: Package Weight One Package Weight 1.57kgs / 3.46lb One Package Size 63cm * 10cm * 10cm / 24.8inch * 3.94inch * 3.94inch Qty per Carton 15 Carton Weight 22.00kgs / 48.50lb Carton Size 65cm * 52cm * 32cm / 25.59inch * 20.47inch * 12.6inch Loading Container 20GP: 246 cartons * 15 pcs = 3690 pcs40HQ: 572 cartons * 15 pcs = 8580 pcs

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Features1. Separated recording & playing keys: one key for recording, one for playing 2. VOR system: Voice Operated/ Activated recording (Automatically starts recording when there is sound and pauses when there is no sound.) 3. Four recording modes: * "SP" for high quality recording voice without distorting. * "LP" for long time recording * "SP VOICE" for high quality recording under voice activated recording * "LP VOICE" for long time recording under voice activated recording 4. Sleek appearance design and comfortable touch 5. Recording telephone conversation 6. Connect the recorder with the telephone via telephone adapter; the recorder can record telephone conversation 7. Support multiple audio format, such as MP1, MP2, MP3, WAV 8. No need USB driver 9. 8GB Digital Voice Recorder Pen with MP3 Function. Normal pen with rechargeable refill. Supports MP3, WMA, ASF, and WAV music formats. Long time voice recording.Specifications1. Memory: 8GB 2. With LCD display 3. Built-in speaker 4. Music playing function 5. 128X64 lattice screen 6. Different languages 7. Recording indication 8. Sound control function (VOR) available 9. 7RQ modes: NOP, ROCK, POP, CLASSOL, SOFT, JAZZ and DBB 10. Power supply: 2 x AAA battery (not included) 11. Battery low power indication 12. Working temperature: 0~40 CelsiusSpecification: Package Weight One Package Weight 0.16kgs / 0.34lb Qty per Carton 20 Carton Weight 4.40kgs / 9.70lb Carton Size 31cm * 20cm * 30cm / 12.2inch * 7.87inch * 11.81inch Loading Container 20GP: 1433 cartons * 20 pcs = 28660 pcs40HQ: 3328 cartons * 20 pcs = 66560 pcs

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