Resultados de la búsqueda de "school electronics"

1. Interruptor de pie inalámbrico Bluetooth + USB, modo USB + modo Bluetooth: dos formas de conexión, use un cable USB o Bluetooth para conectar su PC o teléfono móvil. Permite operar con manos libres en iPad, tabletas Android y computadoras con su pie para trabajar, jugar, presionar para hablar, etc. 2. Simular atajos de teclado: Se trata de teclados con funciones personalizadas de dos teclas o unas pocas teclas, en los que se puede personalizar una tecla, una combinación de teclas, teclas de acceso rápido o teclas de acceso directo. (por ejemplo, "Ctrl + Alt + P" o "Alt + A") 3. Aplicación: máquinas de coser, máquinas de coser eléctricas, máquinas dispensadoras, máquinas herramientas, equipos médicos, instrumentos, computadoras de oficina, etc. 4. Fácil y conveniente: no solo se puede utilizar en su PC a través de un cable USB o Bluetooth inalámbrico, también se puede utilizar para iPad, iPhone, tableta, teléfono inteligente con Bluetooth inalámbrico. Software de configuración del pedal (descargar). 5. Diseño ergonómico: Su diseño ergonómico maximiza la facilidad de uso: basta con tocar suavemente el pedal correspondiente. Es resistente, tiene un buen peso y está bien fabricado. Especificación: Peso del paquete Peso de un paquete 0,85 kg/1,87 lb Un tamaño de paquete 33 cm * 17,5 cm * 5 cm/12,99 pulgadas * 6,89 pulgadas * 1,97 pulgadas Cantidad por caja 22 Peso de la caja 18,00 kg/39,68 lb Tamaño de la caja 69 cm x 43 cm x 30 cm (27,17 pulgadas x 16,93 pulgadas x 11,81 pulgadas) Contenedor de carga 20GP: 299 cajas * 22 uds. = 6578 uds. 40HQ: 695 cajas * 22 piezas = 15290 piezas

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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. Sistema de imagen: LCD 2. Resolución original: 320 * 240, resolución 1920 * 1080 3. Brillo: 80 lúmenes (24 lúmenes ANSI) 4. Consumo de energía: 18 W 5. Ruido: menos de 25dB 6. Distancia de lanzamiento: 0,5-3 m 7. Relación de aspecto: 4:3/16:9 8. Relación de contraste: 500:1 9. Alimentación: 12 V 1,5 A 10. Tamaño de la imagen: 16-100 pulgadas 11. Altavoz: 4 ohmios 3 W 12. Interfaz de entrada: AV / USB / TF / duplicación de línea / 5 V 2 A 13. Interfaz de salida: conector para auriculares de 3,5 mm 14. Tamaño: 110x90x50mm 15. Peso: 250g Especificación: Peso del paquete Peso de un paquete 0,50 kg/1,11 lb Un tamaño de paquete 21 cm x 15 cm x 7 cm (8,27 pulgadas x 5,91 pulgadas x 2,76 pulgadas) Cantidad por caja 20 Peso de la caja 11,50 kg/25,35 lb Tamaño de la caja 45 cm x 38 cm x 32 cm (17,72 pulgadas x 14,96 pulgadas x 12,6 pulgadas) Contenedor de carga 20GP: 487 cajas * 20 piezas = 9740 piezas 40HQ: 1131 cajas * 20 piezas = 22620 piezas

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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. Projection technology: DLP2. Adjustment function: manual focus adjustment3. Drop screen size: 30 inches-300 inches4. Display scan frequency: 67.10Hz5. Power supply: 5V 3A6. Operating system: Android 9.07. Optical machine: DLP (0.2 DMD)8. Resolution: WVGA 854 x 4809. Image size: 33.5 1m10. Keystone correction: horizontal side projection 40 degrees, vertical 45 degrees, four corners adjustment11. Main chip: Quad-core ARM Cortex-A55 CPU12. Processor: ARM Mali-G31 MP2 GPU13. Running memory: 2GB/4GB LPDDR414. Read-only storage: 16GB/32GB EMMC15. WiFi: 2.4G/5G 802.11a/b/g/n/ac16. Bluetooth: 5.017. Video decoding: H.265 HEVC 4K x 2K 60fps18. Video/picture format: mkv/wmv/mpg/mpeg/dat/flv, avi/mov/iso/mp4/rmvb/jpg19. Same screen mirroring: Eshare/iMirror/Miracast20. Remote control: support infrared remote control21. Charging port: MICRO USB input: DC 5V 3A&OTG22. HD input: HD input 1.423. Headphone port: 3.5mm audio output24. TF card slot: maximum support 32GB25. Built-in battery: 4500 mAh lithium battery26. Remote control battery: AAA battery x 2 (delivery without battery)27. Product size: 8 x 8 x 2.8 cm28. Weight: 600 gramspacking list:-Projector x 1-Infrared remote control x 1-Tripod x 1-HD cable x 1-Power adapter x 1-User manual x 1Specification: Package Weight One Package Weight 0.60kgs / 1.31lb One Package Size 18cm * 15cm * 13cm / 7.09inch * 5.91inch * 5.12inch Qty per Carton 40 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 40 pcs = 7080 pcs40HQ: 412 cartons * 40 pcs = 16480 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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1. Nuevo y de alta calidad. 2. Entrada: CA 100-240 V 50/60 Hz 3. Salida: CC 12 V 3 A 4. Diámetro exterior del conector: 5,5 mm 5. Diámetro interior del conector: 2,1 mm 6. Longitud del cable: aproximadamente 1,2 m Especificación: General Tipos Adaptador Conector 5,5 x 2,1 mm Voltaje de entrada CA 100-240 V 50/60 Hz Voltaje de salida 12 V CC Corriente de salida 3A Enchufe disponible Enchufe de la UE, enchufe de EE. UU., enchufe del Reino Unido, enchufe de Australia Longitud del cable alrededor de 1,2 m Peso 220 gramos El paquete incluye Contenido del paquete 1 x Adaptador 1 x enchufe australiano 1 x toma de corriente con enchufe UE 1 x toma de corriente con enchufe británico 1 x toma de corriente con enchufe estadounidense Peso del paquete Peso de un paquete 0,23 kg/0,51 lb Un tamaño de paquete 14 cm x 9,5 cm x 5,3 cm (5,51 pulgadas x 3,74 pulgadas x 2,09 pulgadas) Cantidad por caja 40 Peso de la caja 11,20 kg/24,69 lb Tamaño de la caja 40 cm x 29 cm x 30 cm (15,75 pulgadas x 11,42 pulgadas x 11,81 pulgadas) Contenedor de carga 20GP: 766 cajas * 40 uds. = 30640 uds. 40HQ: 1778 cajas * 40 piezas = 71120 piezas

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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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