Search results for "school electronics"

1. Using TDMA technology, combined with Tier II, AMBE++ vocoder design, compatible with DMR two-way radios such as mototrbo2. The color display allows users to check the operating status at a glance, including battery power and caller identity, etc.3. IP67 waterproof and dustproof function, so you can use them anywhere without worrying about the surrounding environment4. Function: high/low power optional, digital encryption, emergency alert, VOX, scan, message, etc.5. Frequency range: 400-470MHz6. Channel capacity: 1024 channels7. Channel spacing: 12.5KHz8. Working voltage: 7.4V9. Battery capacity: 2800mAh (lithium ion)10. Antenna impedance: 50 ohms11. Size: 148x56x39mmTransmitter:1. Output power: 10W / 4W2. Frequency stability: +/-1.0ppm3. Adjacent channel power: less than or equal to -60dbm4. Idle time slot power: TDMA: less than or equal to -57dBm5. FM modulation mode: 12.5KHz: 11K0F3E6. Modulation deviation: 2.5KHz: @ 12.5KHz7. Passive time slot power: -57dBm8. Modulation: BER is less than or equal to 5%9. Vocoder type: AMBE ++Receiver:1. Common channel reflection: greater than or equal to -12dB2. Adjacent channel selectivity: TIA603C: 65dB, ETSI: 60dB3. Spurious response: TIA603C: 75dB, ETSI: 70dB4. Audio power: 1W5. Audio response: 1db--3db6. Rated audio distortion: less than or equal to 3%Specification: General Model RT83 Frequency Range 400MHz-470MHz Channel Spacing 12.5KHz Antenna Impedance 50 ohms Voltage 7.4V Battery Capacity 2800mAh Max Power 10W Audio Response 1db--3db Audio Distortion less than or equal to 3% Size 148x56x39mm Transmitter Parameters Maximum Deviation =<+/-2.5kHz Receiver Parameters Intermodulation 60dB, 65dB Package Weight One Package Weight 0.89kgs / 1.96lb One Package Size 21cm * 9cm * 17cm / 8.27inch * 3.54inch * 6.69inch Qty per Carton 10 Carton Weight 10.35kgs / 22.82lb Carton Size 21cm * 45cm * 34cm / 8.27inch * 17.72inch * 13.39inch Loading Container 20GP: 829 cartons * 10 pcs = 8290 pcs40HQ: 1926 cartons * 10 pcs = 19260 pcs

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About the product1. Superior metal body provides strength and durability. 2. It has code lock function, data regeneration function, one key intelligent copy function. 3. Handy key chain size attaches to your car keys no more unwanted bulkiness. It can copy the IC model of original remote control is 2262/2260/PT2264 and etc. 4. High speed and high accuracy, the code is not easy to loss. 5. Scope of application: vehicle central locking systems, garage doors, electronic gates, electrical appliances, car sunroofs and etc.Specification: General Voltage DC 12V Working Frequency 433MHz Modulation Mode ASK Keys Quantity 4 Keys Transmission Rate 50-60KHz Encoding Types Learning Code Working Chip EV 1527 Resistance 330K Working Range 20-50m Operating Temperature -10-50 Degrees Celsius Package Weight One Package Weight 0.05kgs / 0.10lb One Package Size 5.3cm * 3cm * 1cm / 2.09inch * 1.18inch * 0.39inch Qty per Carton 300 Carton Weight 10.00kgs / 22.05lb Carton Size 25cm * 20cm * 20cm / 9.84inch * 7.87inch * 7.87inch Loading Container 20GP: 2666 cartons * 300 pcs = 799800 pcs40HQ: 6190 cartons * 300 pcs = 1857000 pcs

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Temperature-Humidity Sensor, DHT11 OnboardOverviewThis is a calibrated digital temperature and humidity module with onboard sensor DHT11. It can be used for detecting ambient temperature and humidity, through the standard single-wire interface.Specifications1. Temperature- Resolution : 1 degree C- Accuracy : +/-2 degree C- Measuring range : 0 degree C ~ 50 degree C2. Humidity- Resolution : 1%RH- Accuracy : +/-5%RH (0~50 degree C)- Measuring range : 20%RH ~ 90%RH (25 degree C)3. Operating voltage : 3.3V ~ 5.5 V4. Recommended storage condition- Temperature : 10 degree C ~40 degree C- Humidity : 60%RH or belowApplications1. Weather station2. Humidity controller3. Test & detection deviceHow to UseIn the case of working with a MCU:1. VCC: 3.3V ~ 5.5V2. GND: GND3. DOUT: MCU.IOPackage Contents1. DHT11 Temperature-Humidity Sensor x12. 3-pin custom connector jumper wire x1Specification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 4cm * 3cm * 1cm / 1.57inch * 1.18inch * 0.39inch Qty per Carton 7800 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 39cm * 40cm / 23.62inch * 15.35inch * 15.75inch Loading Container 20GP: 284 cartons * 7800 pcs = 2215200 pcs40HQ: 661 cartons * 7800 pcs = 5155800 pcs

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1. Voltage range: 0-100V (DC)2. Voltage range: automatic, 1V, 10V, 100V3. Resistance: 0-200 ohms4. Resistance range: automatic, 20 milliohms, 200 milliohms, 2 ohms, 20 ohms, 200 ohms5. Instrument test signal frequency: AC 1Khz6. Charging: TYPE-C interface (5V/1A)7. Built-in battery: 1000mAh lithium battery8. Stable support, integrated folding bracket9. Firm and reliable without occupying space, back hanging hole gourd nail design10. Place on the desktop to work without slipping, silicone anti-slip design11. According to actual needs, you can freely choose the automatic shutdown mode or set a specific shutdown time, which is safe to use and can extend the life of the device12. One-click pause, memory stay, data retention13. The test uses a customized Kelvin 4-wire connection method to connect and measure, avoiding the influence of wire resistance and contact resistance, improving test accuracy15. Eight sets of voltage resistance values ??are pre-set, whether it is batch screening of high-quality batteries or precise positioning of problem batteries, it can be completed in an instant, greatly improving work efficiency16. Using TFT high-definition color screen, functional data is clear at a glance, and visual recognition efficiency is faster and smoother17. Size: 158.7x80.5x28.4mm18. Weight: 225gSpecification: Package Weight One Package Weight 0.45kgs / 0.99lb One Package Size 22cm * 14cm * 9cm / 8.66inch * 5.51inch * 3.54inch Qty per Carton 15 Carton Weight 23.80kgs / 52.47lb Carton Size 64cm * 39cm * 46cm / 25.2inch * 15.35inch * 18.11inch Loading Container 20GP: 232 cartons * 15 pcs = 3480 pcs40HQ: 539 cartons * 15 pcs = 8085 pcs

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OverviewThis AlphaBot2 robot kit is designed to use with Raspberry Pi 3 Model B. It features rich common robot functions including line tracking, obstacle avoiding, Bluetooth/infrared/WiFi remote control, video monitoring, etc.Thanks to the highly integrated modular design, it is fairly easy to assemble by a snap, no soldering, no wiring. After a few minutes spent on hardware assembing, you're almost there, our open source demo codes is ready to help you get started fast.Raspberry Pi 3 Features1. BCM2837, 1.2GHz 64-bit quad-core ARM Cortex-A532. 1GB RAM3. 10/100 Ethernet port4. 802.11n WiFi NIC5. Bluetooth 4.1 & Bluetooth Low Energy (BLE)6. HDMI port7. USB 2.0 interface x 48. Micro SD card slot9. Combined 3.5mm audio jack and composite video10. 40-pin GPIO interface11. Camera interface (CSI)12. Display interface (DSI)13. Upgraded power management, supports more peripherals (requires a 2.5A power supply or above)AlphaBot2 FeaturesAlphaBot2 employs a 2-layer structure to provide excellent stability and compatibility.AlphaBot2-Base, the lower base chassis:1. 5-ch infrared sensor, analog output, combined with PID algorithm, stable line tracking2. Onboard modules like line tracking, obstacle avoiding, needs no messy wiring3. TB6612FNG dual H-bridge motor driver, compared with L298P, it's more efficient, more compact, and less heating4. N20 micro gear motor, with metal gears, low noise, high accuracy5. 5Onboard RGB LEDs, true color lighting, pretty coolAlphaBot2-Pi, the upper adapter board for controller:1. LM2596 voltage regulator, provides the Pi with stable 5V power2. TLC1543 AD acquisition chip, allows the Pi to use analog sensors3. PCA9685 servo controller, make it more smoothly to rotate the pan head4. CP2102 UART converter, easy for controlling the Pi via UARTPackage Contents1. AlphaBot2-Pi (adapter board) x12. AlphaBot2-Base (base chassis) x13. RPi Camera (B) x14. Micro SD Card 16GB x15. Power adapter US standard 5V/3A micro x16. SG90 servo x25. 2 DOF pan and tilt kit x17. IR remote controller x18. FC-20P cable 8cm x19. USB type A plug to micro B plug cable x110. 15PIN FFC 25cm x111. AlphaBot2-Pi screws x112. Micro SD Card Reader x1 (Extra Free)13. Screwdriver x1 (Extra Free)Specification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 15cm * 11cm * 8cm / 5.91inch * 4.33inch * 3.15inch Qty per Carton 60 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 33cm * 40cm / 23.62inch * 12.99inch * 15.75inch Loading Container 20GP: 336 cartons * 60 pcs = 20160 pcs40HQ: 781 cartons * 60 pcs = 46860 pcs

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Features: 1. Light and beautiful structure, high sensitivity 2. With a small back bag easy to carry, suitable for requiring relatively high places 3. Applications: Gold and silver jewelry, jewelry factory security and the need for a quiet school entrance examination venue mute checks. Specifications: 1. Sensitivity: A25-cent coin (60mm) 2. Iron pipe-tube: In 20 to 120mm 3. Operating frequency: 13KHz 4. Operating current: Less than 6mA 5. Power supply: 6F22 9V battery 6. Low battery indicated 7. Alert: Audio & LED light 8. Tuning: Automatic 9. Temperature environment: -10 ~50 degree celsius 10. Alarm: Vibration, sound and light alarm, with headphone output (headphones optional) 11. Detection sensitivity: Detection of one yuan coin, the detection distance 6cm and above 12. Current work: Sound and light is less than 20mA, the vibration is less than 70mA 13. Dimension: 420mm x 80mm x 40mm 14. Weight: 430gSpecification: Package Weight One Package Weight 0.01kgs / 0.02lb Qty per Carton 20 Carton Weight 9.80kgs / 21.61lb Carton Size 50cm * 35cm * 35cm / 19.69inch * 13.78inch * 13.78inch Loading Container 20GP: 435 cartons * 20 pcs = 8700 pcs40HQ: 1010 cartons * 20 pcs = 20200 pcs

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1. CPU: RK3576S quad core Cortex-A72 + quad core Cortex-A53 2. RAM+ROM: 4GB+64GB, Android 14 operating system 23.8-inch screen, 1920x1080 resolution, 16:9 screen ratio, 10 point capacitive touch 4. Supports WiFi6, Bluetooth 5.4, 10M/100M/1000M Ethernet 5. Media format: Decoder: H.264, H.265, VP9, AV1, AVS2, JPEG Encoders: H.264, H.265, JPEG 6. Interface: 1xType-C (OTG only), 1xUSB3.0, 2xUSB2.0, 1xHDMI 2.0, 1xDC power socket, 1xRJ45 7. Dual speakers 4 ohms 5W, 4 microphones, supporting noise reduction and echo cancellation 8. 100x100mm VESA hole 9. 12V/4A adapter, available in US, European, and British standards 10. 8-megapixel camera 11. Display contrast ratio: 4000:1, brightness: 300 nits, backlight lifespan: 30000h, screen ratio: 16:9Specification: Package Weight One Package Weight 7.76kgs / 17.11lb One Package Size 66cm * 47cm * 17cm / 25.98inch * 18.5inch * 6.69inch Qty per Carton 1 Carton Weight 7.76kgs / 17.11lb Carton Size 66cm * 47cm * 17cm / 25.98inch * 18.5inch * 6.69inch Loading Container 20GP: 505 cartons * 1 pcs = 505 pcs40HQ: 1173 cartons * 1 pcs = 1173 pcs

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UT213A: -Diode measurement -Low voltage display -On/Off beep -Data hold -Input impedance -Automatic power off -Screen backlight -Relative measurement -NCV meter pen -Flashlight illumination Parameters: -AC voltage: 0.001V~600V -DC voltage: 0.0001V~600V -AC current: 0.001A~400A -Resistance measurement: 0.1??~40M?? -Capacitance measurement: 0.01nF~100??F -Frequency measurement: 0.01Hz-1MHz -Jaw opening: 30mm -Machine size: 220mmX75mmX40mm -Machine weight: 280g -Power supply: 3 No. 7 batteries (batteries are not included) Standard equipment: box + manual + meter pen + cloth bag Specification: Package Weight One Package Weight 0.25kgs / 0.56lb One Package Size 22cm * 14cm * 8cm / 8.66inch * 5.51inch * 3.15inch Qty per Carton 118 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 118 pcs = 20886 pcs40HQ: 412 cartons * 118 pcs = 48616 pcs

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Overview 1. Atmel-ICE-C is the cost effective solution for the powerful Atmel-ICE, it adopts the original ATMEL-ICE-PCBA and comes with a durable aluminium alloy enclosure. 2. Atmel-ICE-C delivers the same functionality and usability just as the ATMEL-ICE Full Kit, it is capable of debugging and programming Atmel ARM Cortex -M based Atmel SAM and AVR microcontrollers with on-chip debug capability. Key Features 1. Support JTAG, SWD, PDI, TPI, aWire, SPI and debugWIRE interfaces 2. Full source-level debugging in Atmel Studio 3. Support all built-in hardware breakpoints in the target microcontroller (number depends on the OCD module in the target) 4. Up to 128 software breakpoints 5. 1.62 to 5.5V target operation 6. USB powered 7. Provides both ARM Cortex Debug Connector (10-pin) pin-out and AVR JTAG connector pin-out Supported Software 1. Support Atmel Studio 6.2 or higher version 2. Directly supports ICC8AVR or higher version 3. Support programming HEX files generated by ICCAVR, CVAVR, IAR, etc. Supported Devices 1. Programming and on-chip debugging of all Atmel AVR 32-bit MCUs on both JTAG and aWire interfaces 2. Programming and on-chip debugging of all Atmel AVR XMEGA family devices on both JTAG and PDI 2-wire interfaces 3. JTAG and SPI programming and debugging of all Atmel AVR 8-bit MCUs with OCD support on either JTAG or debugWIRE interfaces 4. Programming and debugging of all Atmel SAM ARM Cortex-M based MCUs on both SWD and JTAG interfaces 5. Programming of all Atmel tinyAVR 8-bit MCUs with support for the TPI interface 6. For more details, please visit UC3, Mega, SAM , Tiny, Xmega Specifications 1. INTERFACE VOLTAGE: 1.62V ~ 5.5V 2. JTAG CLOCK: 32kHz ~ 7.5MHz 3. PDI CLOCK: 32kHz ~ 7.5MHz 4. DEBUGWIRE BAUDRATE: 4kbit/s ~ 0.5Mbit/s 5. AWIRE BAUDRATE: 7.5kbit/s ~ 7Mbit/s 6. SPI CLOCK: 8kHz ~ 5MHz 7. SWD CLOCK: 32kHz ~ 2MHz 8. PC INTERFACE: USB 2.0 high speed Package list 1. Atmel-ICE-C unit x1 2. USB type A plug to micro B plug cable x1 3. IDC flat cable with 10-pin 50-mil connector and 6-pin 100-mil connector x1 4. Multi-functional adapter board x1 5. 10pin flat cable x1 6. 10pin 100mil squid cable x1 7. 6-pin to 10-pin ISP cable x1Specification: Package Weight One Package Weight 0.15kgs / 0.33lb One Package Size 16cm * 10cm * 4cm / 6.3inch * 3.94inch * 1.57inch Qty per Carton 120 Carton Weight 15.00kgs / 33.07lb Carton Size 48cm * 40cm * 40cm / 18.9inch * 15.75inch * 15.75inch Loading Container 20GP: 347 cartons * 120 pcs = 41640 pcs40HQ: 806 cartons * 120 pcs = 96720 pcs

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Features:1. Lavalier design, safe, portable and not easy to lose2. Support digital music playback in various MP3 music formats3. Can be used as a mobile flash drive to store MP3 songs or data anytime and anywhere4. Can be used as a TF card reader5. Adopt USB1.1/2.0 interface, support hot swap, both plug and play6. Use a variety of operating platforms, support WIN98/SE/ME/W7/8/10above version7. No mechanical parts, anti-vibration, anti-electromagnetic interference8. Built-in high-efficiency rechargeable lithium battery, long standby timeInstructions for use:1. Put the MP3 switch in the power-on state, turn the switch to ON, and start playing. The status light starts blinking.2. Press the play button again to start in the paused state.3. Press Volume Adjustment to adjust the size.4. Press the front and back to adjust the song you want to listen to.5. To stop playing, press Pause first to put the host in a paused state.6. Turn the switch to OFF state. Shutdown complete.Precautions for use:1. Please do not charge the MP3 with the USB port of the computer for more than 2 hours, otherwise it will easily cause the failure and damage of the built-in lithium battery of the MP3.2. Please dont pay attention to the status of the MP3 or charger indicator light when charging, it will be fully charged in 1.5 hours, and the MP3 or charger indicator light will not change any status after fully charged.3. Do not connect to the USB port of the computer for more than 2 hours at a time. When pulling out the MP3 from the computer, you must strictly follow the requirements of the computer operating system, delete the hardware first, and then unplug the MP3. Otherwise, it is very easy to cause the MP3 player to lose the software program.4. When the new machine is in normal use, please do not upgrade the firmware of the MP3 player.Product parameters:1. Memory card type: TF card2. Expansion card: support3. Operation mode: button type4. Interface: USB 2.05. Headphone jack: 3.5mm6. Support audio format: MP37. Screen color: monochrome screen8. Screen resolution: 160×1289. Menu language: English10. Battery capacity: 90mAh lithium battery11. Battery life: 2 hours12. Product size: 5 x 3.1 x 1.7 cm13. Weight: 21 grams14. Packing: crystal boxSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 6cm * 6cm * 6cm / 2.36inch * 2.36inch * 2.36inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 47cm * 47cm * 47cm / 18.5inch * 18.5inch * 18.5inch Loading Container 20GP: 256 cartons * 500 pcs = 128000 pcs40HQ: 596 cartons * 500 pcs = 298000 pcs

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1. Image sensor: high-performance photosensitive wafer2. Sensor size: 1/43. Magnification: 50-1000 times4. Lens structure: 2G+IR5. Camera light source: 8 adjustable LED lights6. Working temperature: 32 to 113 degrees Fahrenheit (0-45 degrees)7. Battery: 800mAh lithium battery8. Working hours: 1H9. Power input: DC 5V 500 mAh / 1A10. Focal length: 0-infinity11. Camera resolution: 1920 * 108012. Picture format: JPEG13. Video format: MP414. The lighting can be adjusted according to different environments15. Biological observation, textile fabric inspection, skin and hair inspection, circuit inspection, etc., to meet various needs16. 4 silicone anti-skid pads, 360-degree adjustable snake tube17. Dimensions: 128x40x35 mm18. Weight: about 300 gramsSpecification: Package Weight One Package Weight 0.36kgs / 0.79lb One Package Size 17.5cm * 13cm * 5.3cm / 6.89inch * 5.12inch * 2.09inch Qty per Carton 90 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 90 pcs = 15930 pcs40HQ: 412 cartons * 90 pcs = 37080 pcs

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1. Magnification: 30-300X 2. Working distance: 30-200mm 3. Main uses: PCB circuit board inspection, welding, microchip observation, product appearance inspection, jewelry observation, printing dot observation, mechanical parts observation, melt blown cloth observation, microcirculation observation, mechanical knife sharpening microscope 4. Size: 33x20mm 5. Note: This product is an optional telephoto lens for B011 microscope and needs to be used with HCB0990 productSpecification: Package Weight One Package Weight 0.24kgs / 0.53lb One Package Size 18cm * 10cm * 4cm / 7.09inch * 3.94inch * 1.57inch Qty per Carton 80 Carton Weight 20.30kgs / 44.75lb Carton Size 36cm * 40cm * 40cm / 14.17inch * 15.75inch * 15.75inch Loading Container 20GP: 462 cartons * 80 pcs = 36960 pcs40HQ: 1074 cartons * 80 pcs = 85920 pcs

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