Search results for "electronic educational toys"
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18650 Lithium Battery Capacity Automatic Charge Discharge Internal Resistance Tester
1. Working power supply: DC5V external power supply or 18650 battery (both need to be prepared by yourself)2. Applicable batteries: batteries that meet the stop discharge voltage of 2.5~3.5V and 4.2V charging are applicable3. Power supply interface: Type-C interface, power supply line is prepared by yourself (C port mobile phone line)4. System language: Chinese, English5. Test quantity: 1-way charging and discharging measurement (only right battery)6. Internal resistance measurement: Support, use DC two-wire method to test internal resistance7. Charging function: Support, 1-way program control about 1A (MAX) charging; 1-way hardware control about 0.5A (MAX) charging8. Discharging function: Support, only 1-way supports about 1A (MAX) discharge and automatically stops when the condition is met9. Automatic charging and discharging: Support, the battery is fully charged at the end of automatic mode (stop voltage is set to 2.8V or above)10. Cyclic charging and discharging: Support, 1~9 cycles adjustable11. Status prompt: Supported12. Stop discharge voltage: 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 11 levels adjustable13. Discharge current: two resistors, about 1A current (MAX), not adjustable, does not support self-modification14. Charging voltage: controlled by dedicated battery charging chip, about 0.5A/1A charging (MAC), full charge voltage 4.2V15. Power off save: only save the setting parameters, not the measurement data16. Weight: 80g17. Product size: 110×88x30mmTest method:Wait a few seconds after installing the battery, read the battery data, and the battery voltage and internal resistance parameters will be displayed. There will be a delay in data loading during the battery loading and unloading process. Check after the data stabilizesAbout capacity test:The discharge must be completed to measure the capacity. I have never met anyone who wants to measure the capacity just by installing the battery. Discharge takes time. You have to wait for the discharge to end automatically to have a complete capacity in the discharge stageThis product uses the DC two-wire method to test the battery internal resistance principle:DC impedance is based on the physical formula R=V/I, the test set The battery is forced to pass a large constant DC current (currently 10A-80A is generally used) in a short period of time (usually 2-3 seconds), and the voltage at both ends of the battery is measured, and the current battery internal resistance is calculated according to the formula. The DC two-wire test internal resistance is the result of the middle line resistance, and the result is used for reference comparison between batteries tested in the same batch. Due to the influence of contact resistance and battery self-loss, the internal resistance may not be identified normally and cannot be measured. For those with high requirements for internal resistance measurement accuracy, the TS235 internal resistance tester (AC four-wire method) can be used for internal resistance testing.Specification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 16cm * 11cm * 5cm / 6.3inch * 4.33inch * 1.97inch Qty per Carton 54 Carton Weight 7.60kgs / 16.75lb Carton Size 50cm * 35cm * 32cm / 19.69inch * 13.78inch * 12.6inch Loading Container 20GP: 476 cartons * 54 pcs = 25704 pcs40HQ: 1105 cartons * 54 pcs = 59670 pcs
£4.99
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A08 Mini Ear Hook Wireless Walkie Talkie Outdoor Mini Walkie Talkie Wireless Bluetooth Walkie Talkie
1. Transmitting power: 0.5W 2. Battery capacity: 550 mA 3. Standby time: 72 hours 4. Talking distance: 500m max 5. Net weight: 17 grams 6. Rated voltage: 3.7V 7. Charging time: 1-2 hours 8. Dimensions: length 70 width 20 thickness 13 mm 9. Comfortable to wear manually, painless silicone ear caps, no pressure to wear 10. Hidden microphone design, beautiful and does not affect the use 11. Applicable occasions: beauty salons, barber shops, restaurants, hotels, shopping malls, etc. Specification: Package Weight One Package Weight 0.18kgs / 0.39lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 182 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 182 pcs = 32214 pcs40HQ: 412 cartons * 182 pcs = 74984 pcs
£23.99
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AC 240V 50Hz Max 10A LCD Display Power Meter Energy Watt Amps Volt Electricity Usage Monitor Analyzer, AU Plug, AC 240V AU Plug
1.Cumulative Kilowatt-Hour Monitor 2.Large LCD display 3.Power factor 4.Forecast Your Costs 5.Displays volts, amps and wattage within 3% accuracySpecification: General Material Plastic, Metal Input Voltage AC 240V Size 15.5*7.3*6.7cm Weight 185g Package Weight One Package Weight 0.25kgs / 0.55lb One Package Size 16cm * 8.5cm * 8cm / 6.3inch * 3.35inch * 3.15inch Qty per Carton 50 Carton Weight 12.70kgs / 28.00lb Carton Size 45cm * 40cm * 30cm / 17.72inch * 15.75inch * 11.81inch Loading Container 20GP: 493 cartons * 50 pcs = 24650 pcs40HQ: 1146 cartons * 50 pcs = 57300 pcs
£6.99
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CHUNGHOP Chunghop Universal A/C Remote Control (K-1038E), K-1038E
1) K-1038E can control over 1000 different world famous brands of air-conditions including the functions such as model selecting, wing, manual or auto wing directions, LCD Display 2) 1000 in 1 Universal remote control for air-conditioners 3) Powerful codebase 4) Memory function during electricity failure 5) Adopt manually searching and automatically searching 6) Complete functions 7) Comfortable hand feeling 8) Clock function, timer on/off function 9) Compatible: universal A/C 10) Transmitting distance: 8m 11) Material: ABS 12) Batteries: 2 x AAA batteries 13) Size: 142 x 51 x 27mm 14) Weight: 72gSpecification: Package Weight One Package Weight 0.12kgs / 0.27lb Qty per Carton 40 Carton Weight 5.40kgs / 11.90lb Carton Size 48cm * 27cm * 33cm / 18.9inch * 10.63inch * 12.99inch Loading Container 20GP: 623 cartons * 40 pcs = 24920 pcs40HQ: 1447 cartons * 40 pcs = 57880 pcs
£4.99 £2.99
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CHUNGHOP CHUNGHOP AC-128S Battery Universal Air Conditioner Remote Control
1. Shell material: ABS2. Key material: silicone3. Transmission distance: less than or equal to 8m4. Power supply: 2 x AAA (not included)5. Equipped with common function keys for air conditioners, simple and convenient matching settings6. Power-off intelligent memory function, permanent memory function, no need to reset after no power7. 1000-in-1 ultra-full code library, suitable for most brands8. Vivid color matching, pleasing appearance, comfortable feel9. Dimensions: about 12 x 4.8 x 1.7cmSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 18cm * 7cm * 4cm / 7.09inch * 2.76inch * 1.57inch Qty per Carton 200 Carton Weight 21.00kgs / 46.30lb Carton Size 37cm * 54cm * 54cm / 14.57inch * 21.26inch * 21.26inch Loading Container 20GP: 247 cartons * 200 pcs = 49400 pcs40HQ: 573 cartons * 200 pcs = 114600 pcs
£4.99 £1.99
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Xiaomi Original Xiaomi Black Shark Noise Reduction True Wireless Bluetooth Earphone
1. Using Bluetooth 5.2 protocol, combined with self-developed ultra-low delay technology2. Adopting a high-sensitivity titanium-plated composite diaphragm up to 12mm, which brings abundant dynamics and richer timbre details3. The use of dual microphone ENC call noise reduction, the call is clearer4. Ergonomic design, comfortable to wear5. Built-in shark sauce voice prompts, support in-ear detection, mode switching, low-battery prompts and other voice prompts in multiple scenarios6. Support smart touch detection, simple operation7. Support in-ear detection, the music is stopped when you take it, and it can continue to play when you wear it again8. Headphone battery capacity: 58mAh, charging compartment battery capacity: 420mAhSpecification: Package Weight One Package Weight 0.18kgs / 0.40lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 120 Carton Weight 25.00kgs / 55.12lb Carton Size 47cm * 52cm * 42cm / 18.5inch * 20.47inch * 16.54inch Loading Container 20GP: 259 cartons * 120 pcs = 31080 pcs40HQ: 603 cartons * 120 pcs = 72360 pcs
£53.99
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Mini High-Precision Decibel Instrument Environmental Noise Detector, S8607
1. Frequency response: 31.5Hz~8KHz2. Measurement range: 30~130dB3. Accuracy: 1.5dB (reference sound pressure calibration 94dB@1KHz)4. Display resolution: 0.1dB5. Frequency weighting characteristics: A sound level frequency meter weight6. Battery: 15V AAA x 3 (not included)7. The reading experience of the backlit display is very convenient8. Soft rubber buttons are very comfortable to use9. The microphone is designed with a windproof sponge to collect sound more accurately and filter out the impact of wind on sound.10. The decibel meter is A-value weighted and is suitable for measuring ambient noise, such as traffic noise, baby room noise, classroom noise, home theater noise, industrial noise, workshop noise, office area noise, etc.11. Size: 150x50x30mm12. Net weight: 81gSpecification: Package Weight One Package Weight 0.11kgs / 0.25lb One Package Size 18cm * 7cm * 5cm / 7.09inch * 2.76inch * 1.97inch Qty per Carton 150 Carton Weight 19.50kgs / 42.99lb Carton Size 49cm * 42cm * 37cm / 19.29inch * 16.54inch * 14.57inch Loading Container 20GP: 350 cartons * 150 pcs = 52500 pcs40HQ: 812 cartons * 150 pcs = 121800 pcs
£7.99
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For LG TV Bluetooth Handheld Infrared Voice Multi-Function Remote Control, AKB75855501 Voice
1. For LG smart LCD TV remote control, can complete Bluetooth voice control2. Made of high-quality ABS material3. Powered by 2 AAA batteries (not included)4. Supports a transmission distance of 1~8 meters5. Replace your old or broken remote control6. Ergonomic design, comfortable to use, simple and convenient7. Size: 18.7x5x3.7 cm8. Weight: about 90 gramsSpecification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 20cm * 6cm * 4cm / 7.87inch * 2.36inch * 1.57inch Qty per Carton 96 Carton Weight 11.76kgs / 25.92lb Carton Size 42cm * 38cm * 32cm / 16.54inch * 14.96inch * 12.6inch Loading Container 20GP: 522 cartons * 96 pcs = 50112 pcs40HQ: 1212 cartons * 96 pcs = 116352 pcs
£6.99
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DC 12V 24V 48V Universal Electric Door RF Wireless Remote Control Relay Receiver Set
1. Shell material: ABS2. Product size: 68x48x18mm (excluding shell)3. Product net weight: 25g (excluding shell)4. Working frequency: 315MHz/433.92MHz5. Output mode: terminal block6. Control method: remote control with the same frequency7. Working mode: inching, self-locking, interlocking8. Working voltage: DC12-36V9. Standby current: 9.8mA10. No-load maximum operating current: 96mA11. Receive sensitivity: -105dBm12. Working temperature: -20-70 degrees CelsiusNotice: 1. The supply voltage cannot exceed the working voltage.2. In an environment with strong wireless interference, the receiving distance may be reduced.3. Keep out of reach of children.4. It is forbidden to use it in a humid environment, otherwise it may cause damage to the controller.Specification: Package Weight One Package Weight 0.14kgs / 0.30lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 10 Carton Weight 1.53kgs / 3.37lb Carton Size 20cm * 10cm * 10cm / 7.87inch * 3.94inch * 3.94inch Loading Container 20GP: 13333 cartons * 10 pcs = 133330 pcs40HQ: 30952 cartons * 10 pcs = 309520 pcs
£7.99
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CHUNGHOP CHUNGHOP K-2080E Universal LCD Air-Conditioner Remote Controller, K-2080E
1. Brand new and high quality. 2. Universal A/C air conditioner remote controller. 3. With the LCD display, the simple operation and the power off memory function, the remote control is the best choice of the damage, loss and replacement of the remote control. 4. Control over 1,000 different world famous brands of Air-conditioners. 5. Stylish and elegant design. 6. Easy setting, simple operation, original apperance. 7. Comfortable handle feel, convenient to use. 8. Powerful enough for you to operate in a long distance.Specification: General Model K-2080E Material ABS Power Supply 2*1.5V AAA batteries (not included) Size 14*5.4*2.2cm Weight 86g Package Weight One Package Weight 0.15kgs / 0.33lb One Package Size 24.5cm * 11.5cm * 3.5cm / 9.65inch * 4.53inch * 1.38inch Qty per Carton 80 Carton Weight 11.00kgs / 24.25lb Carton Size 50cm * 46cm * 37cm / 19.69inch * 18.11inch * 14.57inch Loading Container 20GP: 313 cartons * 80 pcs = 25040 pcs40HQ: 727 cartons * 80 pcs = 58160 pcs
£3.99
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CHUNGHOP CHUNGHOP K-3302E Universal Air Conditioner Remote Control with Torch and LCD backlight, K-3302E
1. Material: ABS + silicone2. Suitable for most air conditioners (window air conditioners, wall-mounted air conditioners, split air conditioners, DC inverter air conditioners)3. Battery: 2xAAA4. Remote control range: about 8 meters5. This smart remote control integrates real-time temperature and humidity measurement and display, flashlight and air conditioner remote control functions6. A large number of air conditioner remote control codes are stored in the database, compatible with new and old air conditionersSpecification: Package Weight One Package Weight 0.16kgs / 0.36lb One Package Size 22cm * 8cm * 5cm / 8.66inch * 3.15inch * 1.97inch Qty per Carton 80 Carton Weight 13.80kgs / 30.42lb Carton Size 52cm * 46cm * 34cm / 20.47inch * 18.11inch * 13.39inch Loading Container 20GP: 327 cartons * 80 pcs = 26160 pcs40HQ: 761 cartons * 80 pcs = 60880 pcs
£4.99
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MPPT 40A 12V/24V LCD Display Solar Controller Automatic Identification Off-Grid System Controller
1. Adopt DC/DC conversion technology and MCU technology. It can intelligently adjust the working point of the solar panel array, so that the solar panel array achieves the maximum power output. When external conditions change, the MPPT controller tracks the maximum operating point of solar panels based on MCU theory, so as to improve the efficiency of solar panels and reduce the cost of solar power generation. Compared with ordinary solar charge controllers, MPPT can increase the output efficiency of solar panels by 5% to 30% (the rate of increase in output is affected by the attributes of solar panels, ambient temperature and lighting conditions).2. LCD liquid crystal display, USB output, the product can charge various lithium batteries, activate lithium batteries, etc.3. DSP processor architecture ensures the high speed and performance of the controller4. MPPT efficiency is greater than 99%, and peak conversion efficiency is greater than 98%5. 12V/24V automatic recognition6. PV input: 100V7. Four-stage charging mode8. Protection: photovoltaic array short circuit, solar panel reverse connection protection, battery reverse connection, load overload protection, output short circuit protection9. Dimensions: 215.5x174x65 mm10. Weight: 1125gSpecification: Package Weight One Package Weight 1.20kgs / 2.65lb One Package Size 30cm * 20cm * 10cm / 11.81inch * 7.87inch * 3.94inch Qty per Carton 24 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 24 pcs = 4248 pcs40HQ: 412 cartons * 24 pcs = 9888 pcs
£51.99