Resultados de la búsqueda de "school electronics"

1. Rated voltage: 100v-240v2. Rated power: 1W3. Disc insertion method: snap-in4. Audio cable category: audio cable5. Speaker interface: 3.5MM audio cable interface6. Material: ABS7. Professional repetition, study better.8. A player specially developed for learning to protect eyesight. Support CD, CD-R, CD-RW, MP3, WMA.9. Small and convenient, easy to carry with you.10. You can use the charging head, power bank, and computer socket to charge.11. No external function, private enjoyment.12. Intimate safety lock design.Specification: Package Weight One Package Weight 0.52kgs / 1.14lb One Package Size 20cm * 20cm * 6cm / 7.87inch * 7.87inch * 2.36inch Qty per Carton 32 Carton Weight 17.64kgs / 38.89lb Carton Size 42cm * 42cm * 50cm / 16.54inch * 16.54inch * 19.69inch Loading Container 20GP: 302 cartons * 32 pcs = 9664 pcs40HQ: 701 cartons * 32 pcs = 22432 pcs

Leer Más Menos

1. Compacto y portátil, fácil de usar. 2. Viene con un software de sincronización de tiempo incorporado, que puede buscar horas grabadas específicas. 3. Después de una carga, puede grabar durante aproximadamente 5 a 10 horas. 4. Frecuencia: 20 Hz-20 KHz 5. Interfaz de transmisión: USB 2.0 6. Frecuencia de muestreo: 45 KHz 7. Velocidad de bits: 384 Kbps 8. Batería: Batería de litio recargable 9. Tiempo de carga: 1-2 horas 10. Distancia de grabación: 10 metros 11. Formato de grabación: WAV 12. Compatibilidad del sistema: Windows 2000/XP/Vista/Win7, Mac OSX 10.3, Linux Redhat 8.0 y superior 13. Material de la carcasa: ABS 14. Tamaño del producto: 70 x 21 x 9 mm 15. Peso del producto: 30 g Especificación: Peso del paquete Peso de un paquete 0,04 kg/0,09 lb Un tamaño de paquete 13,5 cm x 10,6 cm x 2,5 cm (5,31 pulgadas x 4,17 pulgadas x 0,98 pulgadas) Cantidad por caja 150 Peso de la caja 6,20 kg/13,67 lb Tamaño de la caja 50 cm x 42 cm x 26 cm (19,69 pulgadas x 16,54 pulgadas x 10,24 pulgadas) Contenedor de carga 20GP: 488 cajas * 150 piezas = 73200 piezas 40HQ: 1133 cajas * 150 piezas = 169950 piezas

Leer Más Menos

1. Intuitive and easy to read, the mechanical display can reduce the risk of data loss due to unexpected power outages2. Enclosed anti-interference instrument, with precise, stable and effective counting measurement, it can effectively avoid human and environmental interference3. ABS fireproof material, which has good impact resistance, heat resistance, low-temperature tolerance and excellent insulation performance4. Accurate terminal bottom, the copper connector makes the line connection more reliable and convenient5. Anti-theft seal, it can effectively prevent the electricity meter from being stolen and also prevent the electricity meter from being damaged6. Widely applied, it can be used in apartments, residential areas, rentals, commercial areas, factories, schools and other placesSpecification: Package Weight One Package Weight 1.51kgs / 3.34lb One Package Size 18cm * 16cm * 14cm / 7.09inch * 6.3inch * 5.51inch Qty per Carton 12 Carton Weight 19.00kgs / 41.89lb Carton Size 45cm * 42cm * 32cm / 17.72inch * 16.54inch * 12.6inch Loading Container 20GP: 440 cartons * 12 pcs = 5280 pcs40HQ: 1023 cartons * 12 pcs = 12276 pcs

Leer Más Menos

1. Real-time monitoring, smart chip, precision fine-tuning, reverse connection protection2. Pluggable power connector, RW1 adjustable potentiometer3. Applicable to various instruments, mobile convenient equipment, medical equipment, electric vehicles, balance vehicles, unicycles, ternary lithium batteries, lead-acid batteries, iron-lithium battery packs, etc.4. Stable and reliable, fast recognition, sensitive response5. Reverse connection does not burn, safe and reliable6. The LCD display works, you can set the type of battery you need to measure7. Power display, voltage display, power display, temperature display8. Working current: less than or equal to 15mA9. Working air pressure: 80-106 kPa10. Ambient temperature: -10 to 70 degrees Celsius11. Measuring range: 8-100v12. Measurement speed: about 2 seconds/time13. Display mode: LCD screen14. Installation size: 58 x 28mm15. Dimensions: 61x33x14.5mm16. Weight: about 21gSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 5cm * 3cm / 3.94inch * 1.97inch * 1.18inch Qty per Carton 500 Carton Weight 22.00kgs / 48.50lb Carton Size 50cm * 50cm * 44cm / 19.69inch * 19.69inch * 17.32inch Loading Container 20GP: 242 cartons * 500 pcs = 121000 pcs40HQ: 562 cartons * 500 pcs = 281000 pcs

Leer Más Menos

Item Type:Electronic PetsPower supply:3 * AAA batteries (not included)Material:PlushAge Range:> 3 years oldGender:Unisex1. Stay cute, round eyes, playful and cute2. The fabric is made of soft short plush fabric, which is comfortable and close to the skin3. Switch the battery box, shake the head and back with a music switch button, which is equipped with a battery box4. Exquisite stitching on the fabric can better reflect the workers workmanship and care5. Size: 12*16*21cmSpecification: Package Weight One Package Weight 0.19kgs / 0.41lb One Package Size 10cm * 10cm * 20cm / 3.94inch * 3.94inch * 7.87inch Qty per Carton 80 Carton Weight 15.00kgs / 33.07lb Carton Size 30cm * 50cm * 50cm / 11.81inch * 19.69inch * 19.69inch Loading Container 20GP: 355 cartons * 80 pcs = 28400 pcs40HQ: 825 cartons * 80 pcs = 66000 pcs

Leer Más Menos

featureThe device is standardized and accurate and easy to read. Digital displays are fast and easy to read.Product specifications1. Apply sugarBrixSpecific gravity3. Measurement range:Brix: 0.0~50.0%Specific gravity: 1-1.1304. AccuracyBrix: 0.001Specific gravity: 0.001Package included1X digital refractometer1X clean cloth1X manual1x boxSpecification: Package Weight One Package Weight 0.34kgs / 0.75lb One Package Size 17cm * 10.5cm * 5cm / 6.69inch * 4.13inch * 1.97inch Qty per Carton 88 Carton Weight 30.00kgs / 66.14lb Carton Size 75cm * 46cm * 22cm / 29.53inch * 18.11inch * 8.66inch Loading Container 20GP: 351 cartons * 88 pcs = 30888 pcs40HQ: 815 cartons * 88 pcs = 71720 pcs

Leer Más Menos

1. Four operation modes: constant current operation; constant voltage operation; constant power operation; constant resistance operation2. This time, a flexible input wiring port design is adopted. Users can manually connect different adapters to achieve different measurement functions to extend the functions3. Automatically generate measurement data reports, stop voltage and time-limited discharge4. First turn off the load switch "OFF", measure the current battery no-load voltage, and then turn on the load switch "ON" through the setting key. At this time, you can read the internal resistance parameters of the current battery. The internal resistance of this table is calculated by the formula: (no-load voltage-load voltage)/current current=battery internal resistance5. Long press the setting key, and then short press the setting key when it flashes to switch to time-limited discharge for timing setting to obtain the effect of worry-free discharge aging. The time-limited discharge can be set to count down for any length of 1-99 hours and 59 minutes. When the set time is reached, the discharge will automatically stop. It can be used as a timer to turn off the constant current discharge aging functionReal-time display of internal and external dual temperature measurement data, three intelligent safety protections6. Test various USB data cables/chargers. First, use a data cable to connect the corresponding interface of the load device, and then use the DC power cable and Android cable to connect to the "Micros input detection port". Then adjust the current by setting the button to detect the voltage drop of the data cable and the performance stability of the charger.7. Test various DC power adapters, and the 2.4-inch high-definition large color screen displays data clearly.8. The four-wire wiring method, the voltage measurement is not affected by the voltage drop of the wire, making the voltage measurement more accurate.9. Easily test various data such as voltage/current/capacity of various lithium batteries/batteries.10. Long-term 180W load discharge aging test, the temperature is kept at about 50-80 degrees.11. Adopting intelligent temperature control light effect fan design, built-in large discharge tube, more powerful and more reliable, test the overall capacity of the battery, usage time, aging performance, etc.Online method:1. For Apple mobile phone APP: Please search E_test directly in the App Store to download and install, then click the Bluetooth APP icon to open the software, click the Bluetooth icon above the software to enter and select DL24-BLE to connect, and you can realize the remote wireless remote control setting and measurement function of the mobile phone. You can check the discharge status on the mobile phone at any time, various data cleaning can be seen, discharge voltage, current and power curves, etc. (No need to pair Bluetooth separately, just select DL24 directly from the software Bluetooth icon)2. Applicable to Android mobile phone APP: Scan the QR code on the back of the host to download the corresponding APP software. After installation, open the software and click the Bluetooth icon to enter and directly select DL24-BLE to successfully connect and use (no need to pair Bluetooth separately, just select DL24 directly from the software Bluetooth icon)3. Computer wired connection APP: After the host is powered on, use the data cable provided to connect to the computer USB port, then install the CH340 serial port driver, and then scan the QR code on the back of the host to download the corresponding APP software. After installation, open the software and select the newly installed serial port model to successfully connect and use. Of course, this APP style with installation method is also compatible with the serial port devices of Bluetooth devices4. Computer Bluetooth wireless connection APP: First add the Bluetooth device as the serial port device of DL24-SPP on the computer, then scan the QR code on the back of the host to download the corresponding APP software and store it. You can directly open the software and select the newly added Bluetooth serial port model to successfully connect and use it without installation.Specification: Package Weight One Package Weight 0.84kgs / 1.86lb One Package Size 21cm * 21cm * 15cm / 8.27inch * 8.27inch * 5.91inch Qty per Carton 4 Carton Weight 4.50kgs / 9.92lb Carton Size 44cm * 23cm * 32cm / 17.32inch * 9.06inch * 12.6inch Loading Container 20GP: 823 cartons * 4 pcs = 3292 pcs40HQ: 1911 cartons * 4 pcs = 7644 pcs

Leer Más Menos

1. Material: ABS+Silicone2. DC voltage: 10mV~1000V3. AC voltage (VFC): 10mV~750V4. DC current (mA): 0.01mA~600mA5. DC current (10A): 0.001A~10A6. AC current (mA): 0.03mA~600mA7. AC current (10A): 0.030A~10A8. Resistance: 0.1Ω~60ΜΩ9. Capacitance: 0.01nF~60mF10. Temperature: -40°C~1000℃11. Frequency: 10Hz-6MHz12. Duty cycle: 0.1%~99.9%13. Battery model: 1000mAh 3.7V lithium battery14. VA color reverse display screen, you can see the value clearly in dark environment15. The back support frame allows you to stand and work, making the measurement faster16. Built-in double fuse, multi-directional anti-burn protection, automatic identification to avoid misoperation to achieve anti-burn protection, and safer current measurement17. Press the N/L key to switch to NCV mode. When AC voltage is detected, a buzzer alarm sounds. The closer the distance, the more urgent the alarm18. In Live mode, the neutral and live wires are judged. The live wire indicator light is on and accompanied by a buzzer, and the neutral wire indicator light is off without a buzzer19. The charging indicator light is red, and the full indicator light is green. It is equipped with a Type-c charging cable20. Long press to turn on the flashlight, you can see the measured object clearly in a dark environment, and illuminate the front for you without fear of electric shock risks21. The meter automatically shuts down after about 15 minutes without any operation22. Weight: 188g23. Size: 13.8x7x2.8cm24. Packing list: multimeter; test lead wire; storage bag; temperature wire; charging cable; instruction manual; packaging boxSpecification: Package Weight One Package Weight 0.39kgs / 0.86lb One Package Size 21cm * 13cm * 6cm / 8.27inch * 5.12inch * 2.36inch Qty per Carton 60 Carton Weight 24.00kgs / 52.91lb Carton Size 49cm * 42cm * 37cm / 19.29inch * 16.54inch * 14.57inch Loading Container 20GP: 350 cartons * 60 pcs = 21000 pcs40HQ: 812 cartons * 60 pcs = 48720 pcs

Leer Más Menos

1. Supported movements: triangular gait, self-balancing2. Load capacity: 1kg3. Operating voltage: 12V4. No-load speed: 0.222sec / 60 degrees (45RPM)5. Stall torque: 30kg.cm6. Rated load: 10kg.cm7. Rated current: 900mA8. Control method: digital signal9. Control protocol type: half-duplex asynchronous serial communication10. Battery: 4000mAh (total capacity) 18650 lithium battery x 611. Charging method: DC 5.5x2.1 charging interface12. Battery life: 4.5h13. Charging time: 3h14. Onboard controller: ESP32-WROOM-3215. Onboard controller module features: Wi-Fi, BT, Dual Core, 240MHz16. Wireless control method: 2.4G Wi-Fi17. Wired control method: USB, UART18. Manual operation method: Web-based control interface19. Built-in high-precision 9-axis motion tracker ICM20948, capable of self-balancing20. No manual configuration of the compilation environment is required; a Wi-Fi hotspot is automatically established upon startup, allowing connection and login to the control page using a mobile phone or computer browser; no additional app download is required.21. Rich interfaces and peripherals: The device features a 0.91-inch OLED display, allowing for changes to the displayed content via a web application or host computer serial communication.22. Pre-drilled camera holes allow users to directly install cameras of the corresponding assembly size.23. Fully open source, supporting secondary development. HexArth series control code and communication interface documentation, based on our rich examples, allow for secondary development using various languages ??and devices.24. Can be installed as a Raspberry Pi 4B/Raspberry Pi 5 as a host computer for serial communication with the slave device; ESP32. As a lower-level machine, it can handle most of the computational power for inverse linkage solving and gait generation, leaving more resources for the Raspberry Pi to be used for high-level function development.25. Dimensions: 344.30 x 428.59 x 154.88 (mm)26. Weight: 2.1kg27. Servo dimensions: 45.20 x 24.70 x 37.30 (mm)28. Servo weight: 69gSpecification: Package Weight One Package Weight 2.20kgs / 4.86lb One Package Size 37cm * 45cm * 15cm / 14.57inch * 17.72inch * 5.91inch Qty per Carton 1 Carton Weight 3.30kgs / 7.28lb Carton Size 39cm * 47cm * 17cm / 15.35inch * 18.5inch * 6.69inch Loading Container 20GP: 855 cartons * 1 pcs = 855 pcs40HQ: 1986 cartons * 1 pcs = 1986 pcs

Leer Más Menos

1. Mounting size: 22mm 2. Color: Black + red 3. PBT material 4. Insulation resistance: > / = 2M ohms 5. Permitted Voltage: + / - 20% (AC 12V) 6. Brightness: > / = 100cd/m2 7. Electrical Life: 30000 hours 8. Dielectric Strength: 2.5KV (AC RMS) 9. CTI: > / = 100 10. Protection grade: IP65 11. Operating frequency: AC 50~60Hz 12. Dimensions: 5.0 x 3.6 x 3.6cm 13. Weight: 18gSpecification: Package Weight One Package Weight 0.04kgs / 0.08lb One Package Size 5cm * 4cm * 4cm / 1.97inch * 1.57inch * 1.57inch Qty per Carton 600 Carton Weight 13.70kgs / 30.20lb Carton Size 36cm * 36cm * 30cm / 14.17inch * 14.17inch * 11.81inch Loading Container 20GP: 685 cartons * 600 pcs = 411000 pcs40HQ: 1592 cartons * 600 pcs = 955200 pcs

Leer Más Menos

1. Material: ABS2. Select the table: manual, automatic3. Sound quality selection: stereo4. Function: digital display, built-in speaker, automatic shutdown5. Signal-to-noise ratio: FM52, AM52 (dB)6. Rated voltage: 5V7. Rated power: 2.5W8. Corresponding frequency: FM 87-108MHz; SW 4.75-21.85MHz; AM 522-1620KHz (European regulations, used in China) 520-1710KHz (US regulations)9. Battery specifications: 2 AA batteries (not included)10. Radio tuning method: digital11. Band type: FM/AM/SW12. FM/AM/SW multi-band radio, strong signal, high sensitivity, and clearly listen to all mainstream radio channels.13. High-performance internal magnetic speaker, large-sound cavity vibrator, thorough and clear treble, pure and full midrange, and steady and powerful bass14. Supports headphone output, standard 3.5mm headphone interface, which not only isolates external disturbances, but also avoids disturbing others.15. Digital display band, frequency, time and other information, the backlight will automatically light up during operation, saving power and durability16. 360 degrees 6-section 44cm telescopic antenna, sensitive and stable, and clear17. Triangular anti-reversal design hidden bracket better protects the body and provides a better screen viewing angle18. Automatically search for valid radio channels, and can save up to 32 radio stations.19. Dimensions: 125x74x27mm20. Weight: 140gSpecification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 54 Carton Weight 8.40kgs / 18.52lb Carton Size 47cm * 32cm * 32cm / 18.5inch * 12.6inch * 12.6inch Loading Container 20GP: 554 cartons * 54 pcs = 29916 pcs40HQ: 1286 cartons * 54 pcs = 69444 pcs

Leer Más Menos

Features1. BT4.2 technology, get a faster and more stable connection. Power consumption will be reduced, increasing battery life. 2. The fuselage is mini, easy to carry, equipped with 3.5mm headphones, listen to music, and read e-books anytime and anywhere. Support most of the formats of the audio files MP3, FLAC, APE, OGG, etc. 3. Built-in 8GB internal storage and enables you to download music, movies, and E-books on the device. The MP3 player comes with a TF card slot. 4. 1.5-inch color screen display, high sensitive touch key + side button control. 5. Powerful MP3 player with slim, many helpful features with music, E-book, FM, voice recorder, video, calendar, alarm, etc.Specifications1. Model: M188 2. BT version: 4.2 3. Power supply: DC 5V 1000mA 4. Battery: 400mAh lithium battery 5. Screen: 1.5 inch 240 x 240 pixel 6. Built-in memory: 8GB 7. Work time: 12 hours 8. Play mode: TF card (not included) 9. Size: 6.0 x 4.65 x 2.25cmSpecification: Package Weight One Package Weight 0.30kgs / 0.67lb One Package Size 15cm * 10cm * 6cm / 5.91inch * 3.94inch * 2.36inch Qty per Carton 40 Carton Weight 13.00kgs / 28.66lb Carton Size 42cm * 32cm * 32cm / 16.54inch * 12.6inch * 12.6inch Loading Container 20GP: 620 cartons * 40 pcs = 24800 pcs40HQ: 1439 cartons * 40 pcs = 57560 pcs

Leer Más Menos