Search results for "school electronics"

Function parameter:1. Diode measurement2. Buzzer on and off3. Data retention4. Auto range5. NCV test pencil6. Neutral live wire measurement7. Screen backlight8. Relative measurement9. Automatic shutdown10. Duty cycle11. True RMS12. MAX/MIN Mode13. AC voltage: 0.001V~600V14. DC voltage: 0.1mV~600V15. AC current: 0.01A~600A16. DC current: 0.01A~600A17. Voltage frequency: 10-60KHz18. Capacitance measurement: 0.01nF~6019. Resistance measurement: 0.1Ω-60.00MΩ20. Temperature measurement: -40~1000 degrees Celsius21. Frequency measurement: 0.01Hz~10MHz22. Jaw opening: 28mm23. Machine size: 215mmX63.5mmX36mm24. Machine weight: 248g25. Power supply mode: 2 AAA batteries (not included)Accessories: manual, test leads, cloth bag, temperature probeSpecification: Package Weight One Package Weight 0.22kgs / 0.49lb One Package Size 22cm * 14cm * 8cm / 8.66inch * 5.51inch * 3.15inch Qty per Carton 134 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 134 pcs = 23718 pcs40HQ: 412 cartons * 134 pcs = 55208 pcs

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1. Support system: Android /iOS/Windows system2. Printing method: hotline printing3. Printing speed: 90mm/sec4. Reliability TPH lifetime: 100km5. Resolution: 203DPI (8dot/mm)6. Printing width: 48mm (384dot)7. Paper width: 58+/-01mm8. Battery capacity: 7.4VDC / 2000mA9. Printed Chinese characters: Simplified Chinese 24x24 points, support 18030 font library, support Taiwan and Hong Kong traditional (complex fonts)10. Interface: standard RS232/USB, Bluetooth 4.0/SPP protocol or infrared/IRCOMM protocol (optional)11. Stable performance, print cleaning, wear resistance, long service life12. Small size, easy to carry13. Support various takeaway software platforms14. Supports two different connection methods of Bluetooth and computer USB, compatible with multiple systems15. Driver: Win2003/Win2000/Win7/WinXP/Win10/Vista/Win8/Linux16. Size: 118x83x59mmSpecification: Package Weight One Package Weight 0.42kgs / 0.93lb One Package Size 18cm * 12cm * 7cm / 7.09inch * 4.72inch * 2.76inch Qty per Carton 40 Carton Weight 20.10kgs / 44.31lb Carton Size 36cm * 48cm * 35cm / 14.17inch * 18.9inch * 13.78inch Loading Container 20GP: 440 cartons * 40 pcs = 17600 pcs40HQ: 1023 cartons * 40 pcs = 40920 pcs

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Features1. Small size, big vision. 2. Quiet design, efficient cooling system. 3. Built-in speakers. 4. Built-in lithium battery, no need worrying about the power. 5. With high precision lens, gives a better experience. 6. Energy saving, low cost of use and environment protection. 7. Support AV & USB & VGA & HDMI. 8. Portable and convenient to take. 9. 800x480 pixels resolution with brightness of 1800 lumens. 10. Picture size can up to 32-120 inch. 11. 1500:1 contrast ratio.Specifications1. Imaging System: LCD 2. Keystone Correction: +/- 15 degree manual 3. Lumen: 1800 Lumens 4. Contrast: 1000:1 5. Physical Resolution: 800 x 480P, support 1280 x 800P 6. Power: 60W 7. Power Supply: 110-240V 50/60Hz 8. Light Source: LED 9. Input Interface: USB / SD / HDMI / AV / VGA 10. Output Interface: 3.5mm earphone 11. Projection Distance: 1-3 meters 12. Projection Size: 32-120 inch 13. Aspect Ratio: 16:9 / 4:3 14. Picture Format: JPEG, BMP, PNG 15. Music Format: WMA, MP3, MP4 16. Movie Format: RM/RMVB, MPEG1, MPEG2, MPEG4, H264, MOV, FLV, VC1, DIVX 17. Size: 208 x 165 x 80mm 18. Weight: 949gSpecification: General Model LY-40 Display Types LCD Native Resolution 1280 x 800 Brightness 1800 lumens Lamp Types/Number/Life LED Contrast Ratio 1500:1 Image Color 16.7k Projection Distance 1 - 3m Power Consumption 60W Interfaces(I/O) 1 x USB Port 1 x HDMI Port 1 x VGA Port 1 x SD Card Slot 1 x AV Port Dimensions Size 208 x 165 x 80mm Weight 949 g Package Include Package Contents 1 x Projector 1 x Remote Control 1 x AV Cable 1 x Manual 1 x USB Cable 1 x Power Cable Package Weight One Package Weight 0.97kgs / 2.14lb One Package Size 22cm * 18cm * 10cm / 8.66inch * 7.09inch * 3.94inch Qty per Carton 20 Carton Weight 21.90kgs / 48.28lb Carton Size 50cm * 44cm * 36cm / 19.69inch * 17.32inch * 14.17inch Loading Container 20GP: 336 cartons * 20 pcs = 6720 pcs40HQ: 781 cartons * 20 pcs = 15620 pcs

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Features:1. This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display screen, can be used as ARM test development board.2. Can be secondary development on the basis of this kit, for example, it can be changed to Millivoltmeter, data loggers.3. Adjustable vertical displacement, and with instructions.4. With automatic, regular and one-shot modes, easy to capture the moment waveform.5. Available rising or falling edge trigger.6. Observable previous trigger waveform (negative delay).7. Can freeze at any time waveform display (HOLD function).8. Come 1Hz /3.3V square wave test signal source.9. With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.10. Waveform storage function: will not lose the waveform after power off.11. Short-circuit and open-circuit detection: can help the user find out the soldering error.12. TFT controller recognition function. Note:This DIY kit is soldered. Specifications:1. Maximum Real-time Sampling Rate: 1Msps2. Accuracy: 12Bit3. Sampling Buffer Depth: 1024 bytes4. Analog Bandwidth: 0-200KHz5. Vertical Sensitivity: 10mV / Div - 5V / Div (1-2-5 progressive manner)6. Input Impedance: 1Mohm7. Maximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)8. Coupling Modes: DC / AC / GND9. The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)10. Supply Voltage: DC 9V11. PCB Size: 117 * 76mm / 4.6 * 3in12. Screen Size: 52 * 40mm / 2 * 1.57in Package List:- 1 * DSO138 soldered Oscilloscope Kit- Soldering- 1 * Probe- 3 * User Manual(English)Specification: Package Weight One Package Weight 0.15kgs / 0.33lb One Package Size 20cm * 13cm * 3cm / 7.87inch * 5.12inch * 1.18inch Qty per Carton 116 Carton Weight 15.00kgs / 33.07lb Carton Size 30cm * 50cm * 50cm / 11.81inch * 19.69inch * 19.69inch Loading Container 20GP: 355 cartons * 116 pcs = 41180 pcs40HQ: 825 cartons * 116 pcs = 95700 pcs

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Hardware specifications:1. Chipset: S905X5M 2.0GHz 64-bit Quad-core Cortex-A55 2. GPU: Mali-G3103. RAM: 2GB/4GB4. ROM: 16GB/32GB/64GB5. USB: Type-A USB2.0x26. LAN: Ethernet:1000M standard RJ-45 7. Wireless: 2.4G /5G dual-band Wifi 802.11 a/b/g/n/ac8. Bluetooth: V5.09. Card reader: Micro SD cards 10. HDMI: HDMI 2.1bfor 4Kx2K 60fps11. HDR: Supports Dolby Visionoptional, HDR10+, HDR10, HLG HDR processing12. 3D: 3D Video formats 13. Power Indicator (LED): Red, Digital Tube LED Display14. Power supply: input: 100-240V 50/60HZ, output: DC 5V/2.0A 15. AV: SupportMain features:1. Operating system: Android 14.02. Support Decoder format: AV1 MP-10 L5.1 up to 4Kx2K 60fps, VP9 Profile-2 up to 4Kx2K 60fps, H.265 HEVC MP-10 L5.1 up to 4Kx2K 60fps, AVS2-P2 Profile up to 4Kx2K 60fps, H.264 AVC HP L5.1 up to 4Kx2K 30fps, MPEG-4 ASP L5 up to 1080P 60fps (ISO-14496), WMV/VC-1 SP/MP/AP up to 1080P 60fps, AVS-P16(AVS+) /AVS-P2 JiZhun Profile up to 1080P 60fps3. Support Media format: Avi/Ts/Vob/Mkv/Mov/ISO/wmv/asf/flv/dat/mpg/mpeg 4. Support Music format: MP3/WMA/AAC/WAV/OGG/DDP/HD/FLAC/APE 5. Support Photo format: HD JPEG/BMP/GIF/PNG/TIFF6. HDD file system: FAT16/FAT32/NTFS7. Support Subtitle: SRT/SMI/SUB/SSA/IDX+USB8. High Definition video output: 4K (4096x2160 pixel ) 9. OSD type of languages: English/French/German/Spanish/Italian/ etc 10. Mouse/ Keyboard: Support mouse and keyboard via USB;Support 2.4GHz wireless mouse and keyboard via 2.4GHz USB dongle Software specifications:1. Network Function: KODI 18.1, Neflix, Vudu, Skype chatting, Picasa, Flicker, Youtube, Facebook, Online movies, etc 2. Other feature: Free Internet searching, thousands of android applications, many kinds of games, etc. Packing list:1. TV box x 12. HD cable x 13. User manual x 14. Packing box x 15. Power adapter x 16. Remote control x 1Specification: Package Weight One Package Weight 0.35kgs / 0.78lb One Package Size 19cm * 12cm * 6cm / 7.48inch * 4.72inch * 2.36inch Qty per Carton 30 Carton Weight 10.90kgs / 24.03lb Carton Size 58cm * 30cm * 25cm / 22.83inch * 11.81inch * 9.84inch Loading Container 20GP: 613 cartons * 30 pcs = 18390 pcs40HQ: 1423 cartons * 30 pcs = 42690 pcs

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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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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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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. Product materials: Adopt aluminum alloy CNC technology, surface sand surface oxidation, high-end environmental protection; with good anti-interference and heat dissipation capabilities. 2. Product features: This product is a portable HDMI high-definition video capture card that can simultaneously capture HDMI audio and video signals and transmit them to mobile phones and computers for preview, editing, storage and other multi-functional applications. 3. Product application: Connect the HDMI input end of the capture card to the signal source, the HDMI output end to the display port, and the Mic end to the microphone to realize high-definition acquisition, video recording, video live broadcast, teaching recording, medical imaging, game live broadcast, Live video, recording and shooting camera HD video, etc. Features : 1. The product complies with USB video UVC specification and USB audio UAC specification 2. Supports operating systems such as Windows, Android, Linux and MacOS 3. Support most acquisition software, such as VLC, OBS, Amcap, etc. 4. Support HDMI local loop out 5. Support microphone audio input, 3.5 stereo channel output 6. Support microphone audio and HDMI audio overlay collection 7. Input terminal: HDMI/F input can support 4K, 8/10/12 bit color depth input format 8. Output: Type C male supports up to 1080P; YUV, JPEG output mode 9. When the standard AWG26 cable is supported, the input transmission distance is up to 15 meters (1080P and below resolution) 10. High-definition capture, strong compatibility, smooth picture without stutter, no delay 11. No need for external power supply, small size, ultra-thin and portable 12. Operating environment: -20 degree C to 75 degree C, relative humidity 5% to 95%Specification: Package Weight One Package Weight 0.32kgs / 0.71lb One Package Size 18cm * 12cm * 8cm / 7.09inch * 4.72inch * 3.15inch Qty per Carton 20 Carton Weight 7.00kgs / 15.43lb Carton Size 42cm * 37cm * 26cm / 16.54inch * 14.57inch * 10.24inch Loading Container 20GP: 660 cartons * 20 pcs = 13200 pcs40HQ: 1532 cartons * 20 pcs = 30640 pcs

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1. DC voltage: 0.3mV~600V2. AC voltage: 3mV~600V3. DC current: 3mA~10A4. AC current: 3mA~10A5. Resistance: 0Ω~60ΜΩ6. Capacitance: 0nF~20mF7. Hz: 10Hz-7MHz8. % duty cycle: 10%~90%9. The small multimeter has a VA reverse color screen, and the screen value can be clearly seen in a dark environment10. The test pen fits tightly with the multimeter jack, so there is no worry of falling off, and the service life is longer11. There is an extended support frame on the back, which can be adjusted in angle after being pulled out and fixed to stand12. The main control chip is used, the performance is more stable, and it has a higher and more stable user experience. The built-in anti-burning fuse makes the measurement more secure13. NCV non-contact voltage detection, place the NCV sensing area close to the AC voltage, the meter will beep and alarm, the screen will display the L indicator light green when the signal is weak; the screen will display the H indicator light red when the signal is strong14. USB charging has strong battery life, built-in 3.7V1000mA lithium battery, the indicator light is red during charging, and bright green when full15. Press the flashlight button to turn on the lighting, no longer afraid of not being able to see the measurement location, eliminate the risk of electric shock, and assist in night measurement work16. The meter will automatically shut down after about 15 minutes without any operation, saving energy and electricity17. Size: 8.9x9.05x4 cm18. Packing list: multimeter; instruction manual; charging cable; test lead cable; temperature cable; packaging boxSpecification: Package Weight One Package Weight 0.32kgs / 0.71lb One Package Size 17cm * 17cm * 6cm / 6.69inch * 6.69inch * 2.36inch Qty per Carton 50 Carton Weight 20.00kgs / 44.09lb Carton Size 52cm * 35cm * 50cm / 20.47inch * 13.78inch * 19.69inch Loading Container 20GP: 293 cartons * 50 pcs = 14650 pcs40HQ: 680 cartons * 50 pcs = 34000 pcs

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1. Material: zinc alloy material + 5D glass2. Battery capacity: 120mAh3. PCM recording 1536Kbit, optional voice-activated recording 50DB4. Automatic split recording, loop overlay recording5. One-button recording, with delete function, play LED light indicator6. Continuous recording for 25 hours, standby for 30 days, 8G capacity (storage recording for more than 70 hours)7. Support MP3, WMA, WAV playback, support fast forward and backward playback8. With time stamp, the recording file name is named after time.9. Support MP3, WMA, WAV playback, support fast forward and backward playbackSpecification: Package Weight One Package Weight 0.13kgs / 0.30lb One Package Size 15cm * 9cm * 5cm / 5.91inch * 3.54inch * 1.97inch Qty per Carton 120 Carton Weight 16.60kgs / 36.60lb Carton Size 47cm * 38cm * 52cm / 18.5inch * 14.96inch * 20.47inch Loading Container 20GP: 287 cartons * 120 pcs = 34440 pcs40HQ: 666 cartons * 120 pcs = 79920 pcs

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Features:1. Add startup voltage detection function2. Automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including dual diodes), thyristors, transistors, resistors and capacitors, etc.3. Automatically test pin elements and display on LCD4. Reference for transistors, MOSFET protection diodes, and amplification factors that can detect the forward bias voltage of the transistors emitter.5. Measure the gate threshold voltage and gate capacitance of the MOSFET6. 1602 liquid crystal display adopts LCD (12864 liquid crystal backlight)7. Fast test speed, effective component test: 2 seconds (except for large capacitors, it takes a long time to measure large capacitance, and the measurement time is one minute is normal)8. One-click operation, boot test, one-click acquisition9. Power consumption shutdown mode: less than 20 nA10. Automatic shutdown function to avoid unnecessary waste, save battery power and improve battery lifeSpecification:1. Two-button operation, automatic shutdown2. Only 20na off current3. Automatic detection of NPN, PNP bipolar transistors, N-channel and P-channel MOS field effect transistors, junction field effect transistors, diodes, diodes, thyristors, low power unidirectional and bidirectional thyristors4. Automatically identify component pin arrangement5. Measurement of Bipolar Transistor Current Amplification Factor and Base-Emitter Threshold Voltage6. Identification of Darlington transistor by base-emitter threshold voltage and large current amplification factor7. Detects bipolar and MOS transistor protection diodes8. Gate MOS FET threshold voltage and gate capacitance measurement9. Two resistances and resistance symbol display can be measured simultaneously. The decimal value shown on the right is 4. The resistance symbols on both sides show the number of pins. So you can measure the potentiometer. If the potentiometer wiper is not shifted to the extreme position, we can distinguish the middle and both ends of the needle10. Resistance measurement resolution is 0.1Ω, can measure 50MΩ11. Can measure 325pf-100mf capacitor with 1pf resolution12. 2uf more capacitors can measure equivalent series resistance at the same time. Two can be displayed as decimal values ??with a resolution of 0.01Ω13. The two diodes can be displayed with the diode symbol in the correct order, and the diode forward voltage can be given.14. The LED was detected as having a higher diode forward voltage. The combination of LEDs is identified as two diodes15. Can measure a single diode reverse capacitance. If the bipolar transistor is connected to the collector or emitter of the base and pins, the collector or emitter junction reverse capacitance can be measured16. Can be connected with single measurement rectifier bridgeSpecification: Package Weight One Package Weight 0.25kgs / 0.54lb One Package Size 18cm * 10cm * 6cm / 7.09inch * 3.94inch * 2.36inch Qty per Carton 50 Carton Weight 14.00kgs / 30.86lb Carton Size 41cm * 37cm * 50cm / 16.14inch * 14.57inch * 19.69inch Loading Container 20GP: 351 cartons * 50 pcs = 17550 pcs40HQ: 816 cartons * 50 pcs = 40800 pcs

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