Search results for "environmental electronics"

1. Frequency response: 50Hz-20KHz 2. Impedance: 2.2K ohm 3. Directionality: Omnidirectional 4. Plug: 3.5mm gold plated straight 5. Applicable: mobile phones/laptops/desktop computers/repeaters/recording pens, etc. to improve the sound quality of the original built-in microphone 6. Microphone size: 6.0x2.7mmSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 360 Carton Weight 2.52kgs / 5.56lb Carton Size 45cm * 48cm * 60cm / 17.72inch * 18.9inch * 23.62inch Loading Container 20GP: 205 cartons * 360 pcs = 73800 pcs40HQ: 477 cartons * 360 pcs = 171720 pcs

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Overview1. Sensitive for carbon monoxide2. Output voltage boosts along with the concentration of the measured gases increases3. Fast response and recovery4. Adjustable sensitivity5. Signal output indicatorSpecifications1. Power: 2.5V ~ 5.0V2. Dimension: 40.0mm * 21.0mm3. Mounting holes size: 2.0mmApplicationsCarbon monoxide monitorHow to UseIn the case of working with a MCU:1. VCC: 2.5V ~ 5.0V2. GND: Power supply ground3. AOUT: MCU.IO (analog output)4. DOUT: MCU.IO (digital output)Package Contents1. MQ-7 Gas Sensor x12. 4-pin custom connector jumper wire x1Specification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 5cm * 4cm * 1cm / 1.97inch * 1.57inch * 0.39inch Qty per Carton 4800 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 40cm * 40cm / 23.62inch * 15.75inch * 15.75inch Loading Container 20GP: 277 cartons * 4800 pcs = 1329600 pcs40HQ: 644 cartons * 4800 pcs = 3091200 pcs

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1. No need to write Ethernet underlying code to implement TCP/IP protocol stack2. Support sleep mode and wake-up on LAN, internal integrated 32K bytes on-chip buffer for Ethernet packet processing3. Support 10/100MBPS transfer rate4. Support 8 independent ports working at the same time5. The module supports 5V or 3. 3V power supply, which is convenient for users to use in different SCM systems6. The communication method between the module and the microcontroller is SPI protocol, which supports speeds up to 80MHz7. If you use the 5500 Ethernet module, you only need some simple Socket programming to realize the Ethernet application8. Support protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE9. We provide users with the source code of the routines based on the 51 single-chip microcomputer and ISTM32 single-chip microcomputer in the "client", "server" and "UDP" three working modes, as well as a detailed manual10. Chip model: W550011. Input voltage: 3.3-5v12. Size: about 55 x 28mmSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 10cm * 3cm / 5.91inch * 3.94inch * 1.18inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 100 pcs = 38100 pcs40HQ: 885 cartons * 100 pcs = 88500 pcs

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parameter:1. Rated voltage: 12/24V lead-acid battery voltage2. Maximum charge and discharge current: 60A3. Solar panel input voltage range: maximum 18V-750W/36V-1500W4. Load working time setting: 1-24 hours adjustable5. Charging mode: PWM6. Overvoltage protection: 17V/34V7. Fully disconnected: 13.8V/27.6V adjustable8. Undervoltage disconnection: 10.8V/21.6V adjustable9. Over-discharge recovery voltage: 12.2V adjustable10. Wiring specification: less than or equal to No. 3 AWG (22 square millimeters)11. Working environment temperature: -25-55 degrees CelsiusFeatures:1. This controller is used for solar off-grid systems or solar street lights, solar power generation systems, etc., to adjust charging and discharging. It can prevent the battery from over-discharging and causing damage.2. 12V/24V automatic identification of lead-acid battery voltage, maximum charge and discharge current 60A3. Vivid LCD graphic symbol LCD display, simple button mode.4. Intelligent micro-processing with automatic temperature compensation according to the pulse width PWM charging method.5. Adjustable charge and discharge control parameters, load working mode that can be set6. Various protection functions such as battery reverse discharge, undervoltage, and reverse connection protection7. Polarity reverse connection protection, overload protection, overcharge protection, short circuit protection.8. Has a wide range of applicability, automatic recognition of day/night9. The timing period of street lamps is adjustable from 1 to 24 hours, with dual period load discharge setting function10. Unique dual time control enhances the flexibility of the street light system11. Adopt temperature compensation, automatically adjust charging and discharging parameters, and improve battery lifeSpecification: Package Weight One Package Weight 0.76kgs / 1.68lb One Package Size 23cm * 16cm * 9cm / 9.06inch * 6.3inch * 3.54inch Qty per Carton 38 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 38 pcs = 6726 pcs40HQ: 412 cartons * 38 pcs = 15656 pcs

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1. 16 modes, 80-level voice changer fine-tuning, beautify the sound and easily control the live broadcast room 2. 8 popular live broadcast modes, original sound/magic sound/phonograph/radio/live broadcast/KTV/recording studio/animation switch at will 3. Bluetooth accompaniment transmission, get rid of the trouble of connection 4. Other functions: ducking/cancelling original sound/internal playback 5. Reverberation mode: DSP 6. Channels: 2 7. Built-in 500 mAh lithium battery 8. Packing list: Set: microphone + monitoring headphones + audio cable x 2 + charging cable + voice changer + leather storage bagSpecification: Package Weight One Package Weight 0.20kgs / 0.45lb One Package Size 18cm * 12cm * 8cm / 7.09inch * 4.72inch * 3.15inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 146 pcs = 25842 pcs40HQ: 412 cartons * 146 pcs = 60152 pcs

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1. Fan like 3D hologram LED display, very creative. 2. 512 x 512 Pixels display resolution, 0.17 square meter display area. 3. Support format: mp4, avi, rmvb, mkv, wkv, wmv, mov, flv, gif, jpg, png etc. 4. Memory: 8G 5. 30W rated power, 1500RPM rotating speed. 6. Connection: 2.4G WiFi 802.11b/g/n 7. Package Include: - Hologram Display x 1 - Power adapter x 1 - Remote control x 1 - Wall mounting fixator x 1 - Expansion screw x 2 - Warranty card x 1 - Certificate x 1 - User manual x 1Specification: Package Weight One Package Weight 2.20kgs / 4.85lb One Package Size 55cm * 18.5cm * 15cm / 21.65inch * 7.28inch * 5.91inch Qty per Carton 4 Carton Weight 9.20kgs / 20.28lb Carton Size 56cm * 38cm * 32cm / 22.05inch * 14.96inch * 12.6inch Loading Container 20GP: 391 cartons * 4 pcs = 1564 pcs40HQ: 909 cartons * 4 pcs = 3636 pcs

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1. 5V relay module2. It can be used as a single-chip development board module, and can be used as a home appliance control3. 5V-12V TTL control signal4. Control DC or AC signal, can control 220V AC load5. There is a normally open and a normally closed contact6. Has a power indicator7. There is a control indicator light, which is bright when closing, but not bright when disconnecting8. Transistor drive increases the relay coil, and the control pin is high impedance9. The control pin has a pull-down circuit to prevent the false action of the floating relaySpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 100 pcs = 56600 pcs40HQ: 1314 cartons * 100 pcs = 131400 pcs

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1. A multi-purpose 4-channel mixer, which can meet the needs of users for home music production, online live broadcast, K song cover, etc.2. The mixer is equipped with, input gain and high and low bass adjustment, built-in 48V phantom power supply suitable for direct power supply of condenser microphones, high-definition headset output port, MP3 player, Bluetooth receiver, with connected PC sound card3. MP3 player module (USB interface, with display function)4. 2 channel signal input and 1 channel stereo signal input5. 1 set of main channel output, 1 set of auxiliary channel output and return connector6. 1 independent recording output and monitoring port7. The external switching power supply (AC100-240V AC) has the characteristics of flexible use and low power consumption8. Low noise, high precision microphone preamp, clear and clean sound9. Balanced microphone XLR input and balanced line TRS input, 3-band channel equalization10. 48V phantom power supply to provide polarized voltage for input port and easy connection of condenser microphone11. Suitable for: recording studio, personal studio, etc.12. Material: ABS13. Headphone monitoring interface; quasi-logarithmic dual 10-bit LED level display14. Power: 5W15. Interface: TRS / XLR / USB / BT16. Microphone: 48V condenser microphone, dynamic microphone17. Packing list: host, USB power cord, power cord plug, English instruction manual18. Power supply mode: AC19. Frequency response range: 20-20000HZ20. Note: The product only contains the recorder, the others do not21. Size: 15x18CM21. Gross weight: 600GSpecification: Package Weight One Package Weight 0.70kgs / 1.55lb One Package Size 23cm * 23cm * 7cm / 9.06inch * 9.06inch * 2.76inch Qty per Carton 20 Carton Weight 13.20kgs / 29.10lb Carton Size 47cm * 24cm * 37cm / 18.5inch * 9.45inch * 14.57inch Loading Container 20GP: 638 cartons * 20 pcs = 12760 pcs40HQ: 1483 cartons * 20 pcs = 29660 pcs

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1. Frequency range: FRS2. Channel number: 163. Output power: 2W4. Working voltage: 3.7V DC5. Battery capacity: 1200mAh (lithium ion)6. Audio distortion: less than 5%7. Frequency stability: +/-2.5ppm8. Frequency deviation: less than or equal to 5KHz/less than or equal to 2.5KHz9. Adjacent channel selectivity: ≥65dB10. Spurious response: greater than or equal to 55dB11. Current: less than or equal to 1.3A12. Functions: monitor, scan, encryptor, companding, VOX, VOX delay, alarm, squelch level, timeout timer, CTCSS&DCS, battery saving mode, battery voltage prompt, high//low output power, etc.13. Dimensions (including battery): 240x65x38mm14. Weight (including battery): 280gSpecification: Package Weight One Package Weight 0.60kgs / 1.31lb One Package Size 26cm * 6cm * 21cm / 10.24inch * 2.36inch * 8.27inch Qty per Carton 10 Carton Weight 7.55kgs / 16.64lb Carton Size 26cm * 30cm * 42cm / 10.24inch * 11.81inch * 16.54inch Loading Container 20GP: 814 cartons * 10 pcs = 8140 pcs40HQ: 1889 cartons * 10 pcs = 18890 pcs

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Specifications1. CM4 socket: Suitable for all variants of Compute Module 4 2. Network: - Ethernet: Dual Gigabit Ethernet RJ45 - M.2 B KEY, for connecting 5G / 4G module - Nano-SIM card slot, supports standard Nano-SIM card for 5G/4G/3G/2G communication 3. USB 3.2 Gen1 x 2 4. PIN header: Raspberry Pi 40PIN GPIO headerx 1 5. Display: MIPI DSI port (15pin 1.0mm FPC connector) 6. Camera: MIPI CSI-2 port x 2 (15pin 1.0mm FPC connector) 7. Video: HDMI x 2, supports 4K 30fps output 8. RTC: Real-time clock with battery socket and ability to wake Compute Module 4 9. Storage: MicroSD card socket for Compute Module 4 Lite (without eMMC) variants 10. Fan header: 5V/12V (12V by default), allows speed adjustment and measurement 11. Power input: 5V/2.5A 12. Size: 99.6 x 87.0mmSpecification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 200 Carton Weight 17.80kgs / 39.24lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs40HQ: 1314 cartons * 200 pcs = 262800 pcs

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Basic parameters:1. Working voltage: DC12V2. Working frequency: 315MHZ/433MHZ3. Contact capacity: less than or equal to 10A/250VAC, 10A/30VDC4. Receiving sensitivity: greater than -105dB5. Is there a casing: Yes6. Remote control distance: 10-30 meters (no interference in open space), this distance is the theoretical distance without interference in open space7. In use, it will be reduced according to different environmental interference and partition walls8. Number of control channels: 1 channel normally open/normally closed contactFeatures:1. Output relay switching value: It can control loads with different voltages below 250V, and the power supply must be 12V.2. Small size: small size, light weight, circuit board size is only 35x32x19mm.3. The working mode can be adjusted by the user at will: the self-locking, interlocking and inching working modes can be adjusted through the pin short circuit.4. Learning code pairing: You can learn to pair with the same frequency remote control at will (don’t worry if you lose the remote control during use, just buy the remote control and learn it, and you don’t need to replace the whole set, which greatly saves the user’s cost).Specification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 8cm * 6cm * 3cm / 3.15inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 10.00kgs / 22.05lb Carton Size 36cm * 28cm * 22cm / 14.17inch * 11.02inch * 8.66inch Loading Container 20GP: 1202 cartons * 200 pcs = 240400 pcs40HQ: 2791 cartons * 200 pcs = 558200 pcs

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1. Brand new and high quality. 2. Small and lightweight, easy to carry. 3. Display devices use high bright LED digital tube, stunning display effect. 4. With reverse polarity protection, reverse not burned. 5. The voltmeter only two wires, wiring simple and reliable performance. 6. Suitable for measuring DC voltage, measure range: 2.5V ~ 30V. 7. When measuring voltage below 10V, two digits are displayed after the decimal point; when measuring voltage above 10V, one digit is displayed after the decimal point.Specification: General Material Electronic Component Current <30mA Measure Range DC 2.5-30V Input impedance >50Kohm Operating Temperature -10 ~ 65 Degree Celsius Cable Length 15cm Operating Humidity 10 ~ 80% Reading Display 0.36 inch Cutting Size 28mm space, 2.8mm diameter Size 33x15x10 mm Weight 4g Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 15cm * 7cm * 4cm / 5.91inch * 2.76inch * 1.57inch Qty per Carton 200 Carton Weight 11.00kgs / 24.25lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch Loading Container 20GP: 542 cartons * 200 pcs = 108400 pcs40HQ: 1259 cartons * 200 pcs = 251800 pcs

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