Search results for "school electronics"

1. Voltage range: AC 30-260V/45-65Hz2. Leakage voltage range: 0-99V/45-65Hz3. Test stroke time: 10-1000mS4. GFCI test: 5mA (HT97B)5. RCD test: 30mA (HT97D/HT97E)6. Voltage measurement: 48V-250V/45-65Hz7. Power supply: two 1.5V AAA Batteries (Batteries not included)8. Simply plug the tester into a powered three-pin outlet. The on-screen display allows you to easily determine the outlets wiring condition and AC voltage. If a wiring error is detected, the orange backlight will illuminate to indicate the wiring error.9. After plugging the tester into the outlet, the data will automatically lock after three seconds. Once locked, press the unlock button.10. Press and hold the RCD button for more than 2 seconds. A properly functioning residual current circuit breaker (RCD) should trip and display the trip time. The button indicator will flash, indicating the tripping process is complete. If it does not trip, the residual current circuit breaker is faulty.11. The instrument automatically shuts down if no operation is performed within 5 minutes of powering on.12. Compact and portable, it is easy to operate.13. The high-definition backlit display ensures clear visibility even in dimly lit environments, making the test results clear and easy to understand.14. Widely applicable, it can be used to check the safety of outlet wiring in homes, offices, shopping malls, and other locations.15. Dimensions: HT97B 67x65x63mm; HT97D 67x65x75mm; HT97E 67x65x63mm16. Weight: HT97B 92g; HT97D 103g; HT97E 103gSpecification: Package Weight One Package Weight 0.13kgs / 0.29lb One Package Size 9cm * 9cm * 10cm / 3.54inch * 3.54inch * 3.94inch Qty per Carton 80 Carton Weight 7.40kgs / 16.31lb Carton Size 40cm * 33cm * 36cm / 15.75inch * 12.99inch * 14.17inch Loading Container 20GP: 561 cartons * 80 pcs = 44880 pcs40HQ: 1302 cartons * 80 pcs = 104160 pcs

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1. Super bright light, which can see through very thick paper. 2. Adjustable brightness, with touch button you can adjust the brightness, very convenient to use. 3. Special acrylic surface, which makes it feel like a glass panel but much stronger than glass. 4. With a compact and elegant design, easy to carry and save space. 5. Eye-protection technology, perfect for sketching, drawing,animation making,calligraphy and tattoo tracing. 6. Simple and convenient to operate. 7. High quality Acrylic materials, durable and reliable.Specification: Package Weight One Package Weight 0.52kgs / 1.15lb One Package Size 40cm * 29.5cm * 3.5cm / 15.75inch * 11.61inch * 1.38inch Qty per Carton 20 Carton Weight 13.10kgs / 28.88lb Carton Size 60cm * 40cm * 35cm / 23.62inch * 15.75inch * 13.78inch Loading Container 20GP: 317 cartons * 20 pcs = 6340 pcs40HQ: 736 cartons * 20 pcs = 14720 pcs

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Overview1. Reflective infrared Transceiver2. Features wide range voltage comparator LM3933. Adjustable sensitivity4. Signal output indicatorSpecifications1. Power: 3.0V ~ 5.3V2. Dimension: 25mm * 15.9mm3. Mounting holes size: 2.0mmApplications1. Robot path tracking2. Obstacle-avoiding car3. Pipeline counterHow to UseIn the case of working with a MCU:Pinouts1. VCC: 3.0V ~ 5.3V2. GND: Power supply ground3. AOUT: MCU.IO (analog output)4. DOUT : MCU.IO (digital output)Package Contents1. Infrared Reflective Sensor x12. 4-pin custom connector jumper wire x1Specification: Package Weight One Package Weight 0.01kgs / 0.02lb One Package Size 5cm * 3cm * 1cm / 1.97inch * 1.18inch * 0.39inch Qty per Carton 6240 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 39cm * 40cm / 23.62inch * 15.35inch * 15.75inch Loading Container 20GP: 284 cartons * 6240 pcs = 1772160 pcs40HQ: 661 cartons * 6240 pcs = 4124640 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 0.69kgs / 1.51lb 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. Function : Film scanner/USB MSDC. 2. Image Sensor : 14.0 Mega pixels (4416*3312) 1/2.33" CMOS sensor. 3. Exposure Control : Automatic / Manual (-2.0 EV~ +2.0EV). 4. Resolution : 14.0 Mega pixels/ 22Mega pixels(interpolation). 5. Film type : 135 Film(36*24mm) / 126KPK Film(27*27mm) / 110 Film(17*13mm) / Super 8 Film(4.01*5.79mm) / Monochrome / Slide. 6. Built-in Memory : 128M. 7. Support System : Windows XP/vista/Windows7/8/Mac10.7.3 and above. Specification: General Model EC018 Material Plastic Interface USB 2.0 External Memory SD Card, up to 32GB (not include) Power Supply DC 5V Adapter/ USB Port Language English, German, Italian, Spanish, French, Chinese, Japanese Size 87*86.5*102.5mm Weight 250g Parameters Display 2.4 inch TFT LCD Exposure Control Automatic, Manual White Balance Automatic TV Out NTSC / PAL File Format JPEG Picture Effects B&W, Slides, Negatives Package Weight One Package Weight 0.27kgs / 0.60lb One Package Size 15cm * 10cm * 10cm / 5.91inch * 3.94inch * 3.94inch Qty per Carton 30 Carton Weight 9.00kgs / 19.84lb Carton Size 40cm * 40cm * 30cm / 15.75inch * 15.75inch * 11.81inch Loading Container 20GP: 555 cartons * 30 pcs = 16650 pcs40HQ: 1289 cartons * 30 pcs = 38670 pcs

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1. DC voltage: 600V2. AC voltage: 450V3. AC current: 20-200-400A4. Resistance (ohm): 200K5. Buzzer function: yes6. Maximum LCD screen: yes7. Data retention function: Yes8. Battery type: 2 x 1.5V (AAA battery) (not included)9. Material: plastic, electronic parts10. Dimensions (LxWxH): 298 x757 x 208 mm11. Net weight 170g12. Package includes- 1 x Clamp digital multimeter- 1 x Tester pen- 1 x Instruction manual- 1 x Storage bag- 1 x LanyardSpecification: Package Weight One Package Weight 0.36kgs / 0.80lb One Package Size 30cm * 20cm * 8cm / 11.81inch * 7.87inch * 3.15inch Qty per Carton 82 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 82 pcs = 14514 pcs40HQ: 412 cartons * 82 pcs = 33784 pcs

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1. Interface: USB2.02. Video input: RCA composite yellow port3. Audio input: RCA L/R audio white/red port4. Video output: 3.5mm AV cable, HDMI5. Audio output: 3.5mm AV cable, HDMI6. Storage: micro SD card (maximum 16GB, does not support NTSF format)7. Video recording format: .avi8. Recording file video: about 9.3MB/minute, 0.56GB/hour9. Power supply: 5V/1A10. Record analog video to digital format to TF card with one click, no PC required11. Convert old video or camcorder tapes to digital format, no computer required12. One-click recording button to record video directly to Micro SD cardNote: Please do not insert the USB drive and Micro SD card at the same time. FAT and NTFS formats are supported, exFAT is not supported.Specification: Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 13cm * 10cm * 4cm / 5.12inch * 3.94inch * 1.57inch Qty per Carton 150 Carton Weight 22.00kgs / 48.50lb Carton Size 41cm * 52cm * 42cm / 16.14inch * 20.47inch * 16.54inch Loading Container 20GP: 297 cartons * 150 pcs = 44550 pcs40HQ: 691 cartons * 150 pcs = 103650 pcs

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Features1. With LCD display, the current mode and parameters are clear at a glance, very clear, simple and practical. 2. Support high and low level trigger, switch control, suitable for most occasions. 3. Wide voltage power supply (6~30V) supports micro USB 5.0V power supply, which is very convenient to use. 4. Support UART data upload and parameter setting. 5. There is a key emergency stop function (STOP key), with reverse connection protection, reverse connection will not burn. 6. Added sleep mode. After enabling, if there is no operation within 5 minutes, the LCD backlight will be automatically turned off; any key will wake up. 7. Different OP, CL, LOP parameters can be set, these parameters are independent of each other and saved separately. 8. All setting parameters are automatically saved after power off.Specification1. Working voltage: 6-30V, support micro USB 5.0V power supply 2. Trigger signal source: high level trigger (3.0V~24V), low level trigger (0.0V~0.2V), switch control (passive switch). 3. Output capability: can control equipment within DC 30v 5A or AC 220v 5A 4. Quiescent current: 15mA Working current: 50mA 5. Working temperature: -40a??85 degrees Celsius 6. With optocoupler isolation, enhance anti-interference ability, industrial-grade circuit board, set parameters will be remembered forever after power off 7. Size: 8.0x3.8x1.9cm 8. Weight: about 36gSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 10cm * 2cm / 3.94inch * 3.94inch * 0.79inch Qty per Carton 200 Carton Weight 11.00kgs / 24.25lb Carton Size 42cm * 42cm * 32cm / 16.54inch * 16.54inch * 12.6inch Loading Container 20GP: 472 cartons * 200 pcs = 94400 pcs40HQ: 1096 cartons * 200 pcs = 219200 pcs

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1. CM5 card slot: compatible with all versions of Compute Module 52. Networking: 1000M Ethernet RJ45 port x 1; 2500M Ethernet RJ45 port x 13. Video: HDMI port x 1, supporting 4K output4. USB: USB 2.0 port (Type-C) x 1; USB 2.0 port (Type-A) x 1; USB 3.2 Gen1 port (Type-A) x 15. M.2: M.2 M KEY (PCIe Gen2/3 x 1, supporting 2230 / 2242 / 2280 NVMe or AI modules); M.2 B KEY, supporting 4G / 5G communication modules6. Storage: onboard Micro SD card slot (for CM5 versions without eMMC)7. Serial interface: RS485 x 48. Digital input: digital input x 1 (input voltage: 5V - 36V)9. Relay: allowable load: less than or equal to 10A 250V AC or less than or equal to 10A 30V DC10. Fan interface: 5V, 4-pin JST-SH PWM fan connector11. Beeper: single-channel controllable12. Others: onboard encryption chip13. Power input: 7V - 36V wide voltage (terminal block + round hole) or 5V 5A (Type-C)14. Size: about 13.25 x 11.22 x 3.45 cmBase plate packing list:- CM5-ETH-RS485-4G-BASE x 1- Screw cap x 1Specification: Package Weight One Package Weight 0.12kgs / 0.26lb One Package Size 16cm * 14cm * 6cm / 6.3inch * 5.51inch * 2.36inch Qty per Carton 96 Carton Weight 13.00kgs / 28.66lb Carton Size 50cm * 38cm * 30cm / 19.69inch * 14.96inch * 11.81inch Loading Container 20GP: 467 cartons * 96 pcs = 44832 pcs40HQ: 1086 cartons * 96 pcs = 104256 pcs

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1. micro:bit edge connector, directly pluggable 2. Embedded driver ST7735S, supports 65K colors 3. Onboard SRAM 23LC1024, used as display cache, no more out of memory 4. SPI interface, takes up only a few IO pins 5. Backlight adjustment via PWM 6. Reserved solder pads for control interface, make it easy to connect with Arduino/Nucleo boards 7. Driver: ST7735S 8. Resolution: 160x128 9. Color display: RGB, 65k colors 10. Operating voltage: 3.3 v 11. Dimension: 61 x 51.5mmSpecification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 10cm * 8cm * 8cm / 3.94inch * 3.15inch * 3.15inch Qty per Carton 150 Carton Weight 9.50kgs / 20.94lb Carton Size 60cm * 32cm * 32cm / 23.62inch * 12.6inch * 12.6inch Loading Container 20GP: 434 cartons * 150 pcs = 65100 pcs40HQ: 1007 cartons * 150 pcs = 151050 pcs

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Hardware specifications 1. Chipset: ESP32-WROVER-B, AXP192 power management chip 2. Flash: 16MB 3. Static SRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: PWR power switch, reset 6. USB to TTL: CP2104 7. Vehicle clock: 40MHz crystal oscillator 8. Peripheral equipment: SIM Nano card slot, Mini PCIE card slot 9. Antenna: Onboard antenna (default) 10. Working voltage: 2.7V to 3.6V 11. Sleep current: About 700ma 12. Operating temperature range: -40 degrees Celsius ~ + 85 degrees Celsius 13. Dimensions: 75 x 33 x 10.5 mm 14. Weight: 14.5g Power Specifications 1. Power input: USB 5V / 1A 2. Charging current: 500 mA 3. Battery input: 3.7-4.2V 4. Charging IC: AXP192 5. JST connector: 2-pin 2.0mm 6. USB: Type C wireless online 1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (ESP32 chip) 2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval 3. Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) 4. Transmit power: 22dBm 5. Communication distance: 300m Bluetooth 1. Protocol: Compliant with Bluetooth v4.2BR/EDR and BLE standards 2. Radio frequency: NZIF receiver Class-1 with sensitivity of -97dBm, Class-2&Class-3 transmitter AFH 3. Audio: CVSD&SBC audio Software specifications 1. Wi-Fi mode: Workstation / SoftAP / SoftAP + Station / P2P 2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS 3. Encryption method: AES / RSA / ECC / SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development / SDK for user firmware development 6. Network protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User configuration: AT + command set, cloud server, Android / iOS app 8. Operating system: FreeRTOS Packing list 1. T-PCIE 16MB x 1 2. Charging cable x 1 3. Needle Pin x 2Specification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 300 Carton Weight 13.00kgs / 28.66lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 300 pcs = 169800 pcs40HQ: 1314 cartons * 300 pcs = 394200 pcs

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1. Use the digital mobile radio (DMR) layer 2 standard protocol. It is compatible with other brands and models of popular MOTO TRBO series Tier I and II that use standard encryption and other DMR-enabled radios. It is also compatible with any existing analog two-way radios operating on supported UHF and VHF frequencies and can be easily ported to digital technology. Almost all operations can be done through the wireless keyboard2. It also has many functions, such as send/receive interrupt, CTCSS&DCS, VOX, surveillance, emergency alert, scan, key lock, TOT, password lock, power saving, remote kill/stun/activate, analog and digital combination, LED Indicator lights, voice prompts, etc.3. Frequency: 136-174&400-480MHz&76-107.95MHz (receive only)4. Channel: 30005. Working voltage: 7.4V DC6. Battery capacity: 3200mAh7. Antenna impedance: 50 ohms8. Size: 150 x 64x 40mm9. Weight: 360g (including battery)Transmitter:1. Power: UHF: 8w: 4w: 1w, VHF: 10w: 5w: 1w2. Frequency stability: +/-1.0ppm3. FM modulation mode: 12.5KHz@11K0F3E 25KHz @ 16K0F3E4. Modulation distortion: less than 5%5. Vocoder: AMBE + 2TM6. Adjacent channel power: 60dBm@12.5KHz 65dBm @ 25KHz7. Audio response: +1 to -3dB8. Digital protocol: ETSI-TS102 361-1, -2, -3Receiver:1. Digital sensitivity: 0.30uV / -117dBm (BER 5%), 0.70uV / -110dBm (bit error rate 1%)2. Adjacent channel selectivity: TIA603C: 65dB ETSI: 60dB3. Spurious response: TIA603C: 75dB ETSI: 70dB4. Audio response: +1 to -3dB5. Rated audio distortion: less than or equal to 3% (type)6. Audio power: greater than or equal to 500mWSpecification: General Model HD1 Frequency Range VHF 136MHz-174MHz, UHF 400MHz-480MHz Antenna Impedance 50 ohms Voltage 7.4V Plug Available EU Plug Audio Response +1 to -3dB Size 150 x 64x 40mm Weight 360g Receiver Parameters Adjacent Channel Selectivity 65dB, 60dB Package Weight One Package Weight 0.81kgs / 1.78lb One Package Size 20cm * 16cm * 9cm / 7.87inch * 6.3inch * 3.54inch Qty per Carton 20 Carton Weight 17.60kgs / 38.80lb Carton Size 40cm * 32cm * 45cm / 15.75inch * 12.6inch * 17.72inch Loading Container 20GP: 462 cartons * 20 pcs = 9240 pcs40HQ: 1074 cartons * 20 pcs = 21480 pcs

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