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Gain Express
Hong Kong
Приєднався 14 жов 2011
Gain Express is a Hong Kong-based manufacturing and trading company established in 2003 that offers a wide range of electronic products and testing instruments. We have years of trading experience (B2B / B2C) with customers from North America, South America, Asia, Australia / Oceania, Europe, Africa, the Middle East and so on.
Some of our products have passed European CE certification and ISO9001 quality management system certification. Get high quality but affordable tools from us!
Some of our products have passed European CE certification and ISO9001 quality management system certification. Get high quality but affordable tools from us!
GAM-391 Geiger Counter Nuclear Radiation Detector
(GM) tube for detecting various types of radiation such as X-rays, gamma rays, and beta rays. The device also features an HD clear LCD display that allows users to select different units of measurement and set alarm functions. This kind of device would be useful for a variety of applications, including radiation monitoring in environments where radioactive materials are present, industrial settings, research facilities, and more.
Features:
Detects X-rays, γ-rays, and β-rays.
High Sensitivity
Automatic Data Saving when the meter is turned off.
High-Definition LCD Display.
Selectable Alarm Modes: Light / Vibration / Sound.
Real-Time Clock and Date Display.
Can preset dose rate and cumulative dose alarm thresholds.
Displays Average and Maximum Values.
Graphical Monitoring with MIN/MAX Display.
Switchable among 5 Dosage Units: μSv/h, μGy/h, mR/h, CPS, CPM.
Adjustable Screen Brightness.
Low Battery Indicator.
To know more about this item, click the link below:
www.gainexpress.com/products/gam-391
For wholesale item contact us at
• Email: info@gainexpress.com
• Follow - Facebook: gainexpressholdings
• Skype - gainexpress
Features:
Detects X-rays, γ-rays, and β-rays.
High Sensitivity
Automatic Data Saving when the meter is turned off.
High-Definition LCD Display.
Selectable Alarm Modes: Light / Vibration / Sound.
Real-Time Clock and Date Display.
Can preset dose rate and cumulative dose alarm thresholds.
Displays Average and Maximum Values.
Graphical Monitoring with MIN/MAX Display.
Switchable among 5 Dosage Units: μSv/h, μGy/h, mR/h, CPS, CPM.
Adjustable Screen Brightness.
Low Battery Indicator.
To know more about this item, click the link below:
www.gainexpress.com/products/gam-391
For wholesale item contact us at
• Email: info@gainexpress.com
• Follow - Facebook: gainexpressholdings
• Skype - gainexpress
Переглядів: 187
Відео
PAR-355 Light PAR Meter Advanced Quantum Sensor
Переглядів 2966 місяців тому
PAR meter is a must-have tool for all growers it measures Photo Synthetically Active Radiation (PAR) flux in wavelengths ranging from 400 to 700nm. There is a proportional relationship between the band and the number of photons absorbed in the 400 to 700nm band and the rate of photosynthesis in plants, which is important for horticulture studies and monitoring plant physiology. Features: Compac...
7530 Wall-Mount CO2 Controller - Optimize Air Quality in Your Space!
Переглядів 737 місяців тому
Explore the efficiency of the 7530 Wall-Mount CO2 Controller! 🌿 This device comes with an external CO2 sensing probe for accurate measurements, making it perfect for indoor air quality monitoring, greenhouse CO2 measurements, and more. Discover how this controller can be utilized in offices, hospitals, schools, residential spaces, and commercial buildings. 🔍 Key Features: External CO2 sensing p...
PAR-380 Digital PAR Meter - Precision for Plant Growth Optimization
Переглядів 787 місяців тому
This Quantum meter device is designed to measure the flux of Photo Synthetically Active Radiation (PAR) within the wavelength range of 400 to 700 nanometers (nm). PAR represents the spectrum of light that is essential for photosynthesis in plants. Plants possess pigments called chlorophylls that are capable of capturing photons within this specific range of wavelengths. These photons provide th...
GM11 Mini 10X Jeweler Loupe Magnifier with LED & UV Light - Unveiling Hidden Details!
Переглядів 2127 місяців тому
This compact tool is designed for jewelers, hobbyists, and collectors who want to explore the finest details of gemstones, jewelry, and more. 🔍 Key Features: 10X magnification for close-up examination Built-in LED and UV lights for enhanced visibility 21mm lens for a clear and detailed view Compact and portable design for on-the-go use 🔦 Illuminating the Details: Join us as we showcase the powe...
E04-036 Automotive Car Repair Diagnostic Tool
Переглядів 817 місяців тому
This Automotive Short and Open Finder, car repair tool is designed to identify and trace wires or cables without damaging the insulation. You can also use it in checking for short circuit and locating open circuit and so on. Included in the set are a Sender and a Receiver with a flexible thus, tracing wires made possible even inside bundles, conduits, behind panels, under carpets, upholstery, e...
CLMG-7208 Handheld Heavy Duty Calcite Dichroscope, Trichoic Gem & Gemstones Gemological Testing
Переглядів 917 місяців тому
Whether you're a photographer, filmmaker, or someone interested in precise light measurements, this device could be a valuable addition to your toolkit. 🔍 Key Features: Accurate light intensity readings for various environments Compact and easy-to-use design Digital display for quick and clear measurements Wide measuring range for versatile applications 🛒 Where to Buy: If you're interested in g...
AQM-338 Hydrogen Sulfide Detector - Portable H₂S Monitor with LED Alarm
Переглядів 667 місяців тому
Hydrogen Sulfide Detector (H₂S) monitor is designed for detecting hydrogen sulfide concentration to help keep individuals safe in hazardous environments. It comes with high-quality sensor with reliable and accurate measurement. It is widely used in household, petroleum plant, chemical environmental protection, metallurgy, refining, biochemical medicine, agricultural research, etc. Features Data...
WQM-369 Water Quality Meter: How to Connect and Optimize Your Measurements
Переглядів 1367 місяців тому
Whether you're a water quality professional or a hobbyist, mastering the connection and optimization of your WQM-369 is essential for obtaining accurate results. Watch our tutorial and make the most out of your water quality monitoring experience! To know more about the WQM-369 Water Quality Meter click the link below: www.gainexpress.com/products/wqm-369 👍 If you found this video helpful, don'...
THE 343 K/J Thermocouple Thermometer
Переглядів 2787 місяців тому
To know more about this item, click the link below: For wholesale item contact us at • Email: info@gainexpress.com • Follow - Facebook: gainexpressholdings • Skype - gainexpress
SLM-390 High Precision Decibel Meter , A / C / Z Weighted
Переглядів 35511 місяців тому
Features: • Wide measurement range • A/C/Z Frequency weighting and FAST/SLOW Time-Weighted options • Data hold and Max/Min/Avg measurement functions • Data record download and real-time PC connection function (PC software compatible with Windows 7, 8, and 10) • A/C/Z Analog signal output - Connectable to a frequency analyzer or X-Y axis recorder for statistical analysis • Adjustable upper and l...
THE-373 K/J Datalogger Thermocouple Thermometer -200~1372°C (-328~2501°F)
Переглядів 2,2 тис.11 місяців тому
Features: • K/J measurement with 4 channels display • °C/°F switchable temperature unit • Data HOLD, MAX/MIN measurement function • Auto power off with disable function • Real-time data logging via a PC connection can display real-time data sheets and data charts • Export and print data sheets and charts • PC software is compatible with Win7, Win8, Win10 • HI/LOW limit can be set separately for...
Pocket Size Digital Battery Checker 710-110
Переглядів 212Рік тому
Get instant power readouts for C, AA, AAA, D, N, 9V (6F22) and 1.55V button cell batteries quickly and effectively! • Bar graph LCD display • Three color-coded zones labeled: - Good - Weak - Poor Suitable for all carbon, zinc, alkaline and rechargeable batteries. To know more about the item, click the link below: www.gainexpress.com/products/710-110 We accept small quantity and wholesale orders...
7730 Smart CO2 Carbon Dioxide Indoor Air Quality Monitor
Переглядів 137Рік тому
Carbon Dioxide monitoring is essential to achieve a safe and healthy environment, especially in close areas like bedrooms, classrooms, offices, hospitals, hotels, gyms, and others. Proper CO2 monitoring reduces the risk of spreading airborne diseases and avoids dizziness, tiredness, headaches, difficulty breathing, and other common health issues that may lead to serious sickness Our CO2 monitor...
THE-368 Smart Meat Thermometer with Bluetooth up to 30 meters (98.42ft)
Переглядів 703Рік тому
Grilling has never been better and easy by using this wireless smart meat thermometer. By downloading the "Grill ProbeE" App the wireless probe can now connect via Bluetooth with your mobile devices. Monitor the grilling/barbecue process conveniently, using the app you can connect up to 4 probes and use them simultaneously. To know more about this item, click the link below: www.gainexpress.com...
T95 Digital 3-AXIS EMF RF Radiation ElectroSmog Power Meter Tester
Переглядів 1852 роки тому
T95 Digital 3-AXIS EMF RF Radiation ElectroSmog Power Meter Tester
G0181105-80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm
Переглядів 452 роки тому
G0181105-80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm
PH-025 Digital pH Monitor Meter ATC 0.00~14.00pH w/ Power Adaptor
Переглядів 882 роки тому
PH-025 Digital pH Monitor Meter ATC 0.00~14.00pH w/ Power Adaptor
ORP-228 ORP Redox Meter Tester -1999~1999mV
Переглядів 2,7 тис.2 роки тому
ORP-228 ORP Redox Meter Tester -1999~1999mV
ZD-05 Waterproof 2in1 Dual Soil pH Level Moisture Meter
Переглядів 4102 роки тому
ZD-05 Waterproof 2in1 Dual Soil pH Level Moisture Meter
AG 200D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360°
Переглядів 812 роки тому
AG 200D Digital 2-in-1 Angle Finder Meter Protractor Ruler 360°
AGF-323 Digital Angle Finder Ruler, Zeroing and Locking Function
Переглядів 582 роки тому
AGF-323 Digital Angle Finder Ruler, Zeroing and Locking Function
AG-0200BB Digital 360° (±180°) Bevel Box / Inclinometer
Переглядів 3332 роки тому
AG-0200BB Digital 360° (±180°) Bevel Box / Inclinometer
810-100SS Digital Bevel Box Inclinometer with Spirit Level
Переглядів 452 роки тому
810-100SS Digital Bevel Box Inclinometer with Spirit Level
AGF-322 Digital Electronic Inclinometer Angle Finder
Переглядів 1332 роки тому
AGF-322 Digital Electronic Inclinometer Angle Finder
837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl
Переглядів 5152 роки тому
837-2 Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl
AG-82302 Digital Angle Finder / Protractor Tool with Spirit Level 0 ~ 360° Measuring Range
Переглядів 2442 роки тому
AG-82302 Digital Angle Finder / Protractor Tool with Spirit Level 0 ~ 360° Measuring Range
GM11 Mini 10X Jeweler Loupe Magnifier + LED & UV light, 21mm lens
Переглядів 7 тис.2 роки тому
GM11 Mini 10X Jeweler Loupe Magnifier LED & UV light, 21mm lens
7729 Wall Mount / Desktop Stand Indoor Air Quality Monitor Real-time CO2 Detector
Переглядів 2302 роки тому
7729 Wall Mount / Desktop Stand Indoor Air Quality Monitor Real-time CO2 Detector
TM-747D Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer
Переглядів 8302 роки тому
TM-747D Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer
Candice Ports
Como se conecta a mi pc? En Windows 10.
What does the arrows indicate on the LCD screen???
Good!
Hello, can it be understood that a stone we find in nature is a diamond with 7208?
very nice goods
Have you other co2 goods?
Price for Lahore pakistan
What is the compensation "granularity - per .1 degree, .5 degree? I.E. smallest "step" size for calibration?? thanks..
How to adjust EC TDS and SALT please?
Do i need to buy different solution to test salinity? They only provide ph solution
Yes, you need to buy a separate solution to test salinity. Only the pH solution is provided.
mute the noisy background.
What if the reading didn't match the buffer solution in the calibration?
I'd like an answer for this too
We kindly remind you to thoroughly clean the electrode before calibration. Additionally, it's essential to use fresh calibration solutions for accurate results. Should you require further information or assistance, please don't hesitate to reach out to us at info@gainexpress.com with your order ID. Thank you!
Good day! Do i need to calibrate all the parameters or only pH?
Hi Mopar, if the item is brand new no need to calibrate, it has been pre-calibrated at the factory. for pH calibration, use the pH buffer solutions for tds/ec/salt calibrations, Just a single calibration solution will suffice to ensure your equipment is properly calibrated. Just calibrate the EC for a hassle-free calibration process.
Stopped watching after four minutes of watching him just push buttons. Learned not a thing
does not work
We received your message regarding an issue and are here to help. To assist you more efficiently, could you please contact us directly at info@gainexpress.com with your order details and further information about your concern? Our team is committed to providing you with the best possible service and will do our utmost to resolve your issue promptly.
promo sm 💪
You guys are stupid, you provide a device with an instruction manual in Chinese that is unusable. Your 7 in 1device tests stuff that is unknown like TDS, ORP, EC etc. You have 50,000 views of this, thats 50,000 people bought it LOOKING FOR INSTRUCTIONS!
Tenho um alarme montado numa moto Gemini trading 7208 ,- 7218 deixou de funcionar os comandos trabalham bem 0 que poderá ser. Podem mandar um contacto.
Please be informed our product Dichroscope is for Gemstones testing. If you have bought our product and have any concerns, you can email us at info@gainexpress.com. (Informamos que nosso produto Dicroscópio é para testes de pedras preciosas. Se você comprou nosso produto e tem alguma dúvida, pode nos enviar um e-mail para info@gainexpress.com.)
How to calibration tds ?
to Calibrate the TDS, Instead of PH solution, use conductivity buffer solution ( 1413uS, 12.88ms, or 111.8ms) ex. you have 1413uS buffer solution. 1. Change the mode into EC 2. Immerse the meter into the 1413uS buffer solution. 3. Long press MODE/CAL to enter the calibration mode. 4. Wait until 1413 flashes 3x, and that's it. the calibration is done. you may now clean the probe with distilled water and dry it.
@@GainExpress thanks!!!!
Uma merda ,não segura a calibração
What for kind of solution for tds ?? To calibrate
Hello! You'll be pleased to know that there's no need for separate tds/ec/salt calibrations. Just a single calibration solution will suffice to ensure your equipment is properly calibrated. Just calibrate the EC for a hassle-free calibration process.
sollte die Sonde nicht feucht gehalten werden? Shouldn´t the top been kept moist?
Hi, Es ist nicht notwendig, die Elektrode während der Lagerung feucht zu halten. Spülen Sie die Elektrode einfach mit destilliertem Wasser ab und bringen Sie die Schutzkappe nach Gebrauch wieder an.
Would you please tell me the reset procedure? It will be wonderful if you can provide a video on how to reset it.
Hello! Were you looking for information on how to calibrate it? If so, you can find the calibration procedure in the operation manual. Please follow this link: cd50.net/303/, and it will direct you to the operation manual where you can find detailed instructions on calibration. If you have any more questions or need further assistance, please feel free to reach out to us at info@gainexpress.com. Thank you!
Why the pH value is buffering and dont become stable after rinsing it with distilled water? It is not showing accurate value. How can i solve this?
Is it okay to calibrate it with adwa ad70030 ec standar 12880 uS/cm solution to calibrate it? Or do i have to use any specific 12.88 solution?
Hello, you can calibrate it with any brand of standard solution. It's quite versatile in that regard, so feel free to use whichever brand you prefer for calibration.
"Regarding calibration, we recommend calibrating the pH every 2-3 days if the product is used frequently " seriously ? that buffer solution is not free
For tds/ec/salt do i have to calibrate it only with 1413 and 12.88 conductivity solution? Or do i have to calibrate seprately for ec, tds, salt respectively using other calibration solution ?
Hello! You'll be pleased to know that there's no need for separate tds/ec/salt calibrations. Just a single calibration solution will suffice to ensure your equipment is properly calibrated. Just calibrate the EC for a hassle-free calibration process.
My neighbor often makes loud noises at night. I want to buy a sound meter to detect how loud they are. Can this device record the original sound like their loud singing? So I can send to my lawyer as legal evidence.
Did you buy this and was it helpful ?
Can I use de-ionized water instead of distilled water?
Do the electrodes of this PH meter need to be kept in some kind of dust, or is it enough to close it with a plug?
I think I got a dud. The temperature and PH results jump around and when I calibrated the 9.18 solution showed as 6.86
Hi Ben, can you email us at info@gainexpress.com together with your Order ID. Thanks
Uma bosta botei dinheiro fora
Which is the minimum sample rate?
Hi alberto, for the sampling rate the lowest value you can select is 30second
Why my refractometer showing inclined line in scale? How it can be solved? Kindly help!
Dear buyer, please contact us at info@gainexpress.com regarding your refractometer concern. Kindly send us a photo showing the inclined line scale so we can assist you in determining the possible reason/s for it. Thank you.
How long Last 1 Electrode Probe ? ❗
Maximum F or ac
Hi, This is how to calibrate but how to test the pool water and what should each ideal reading level should be, Also if we have to calibrate after each use or even 5 uses then going back to liquid testing kit is the go. Thanks
Thank you for your interest in our product. You can take a sample of water from the pool to measure the PH/TDS/EC/Salinity/TEMP levels. However, it's important to note that each country has its own standard level of these parameters, so please check the standard in your country. Regarding calibration, we recommend calibrating the pH every 2-3 days if the product is used frequently. Normally, there is no need to calibrate TDS/EC/Salinity. However, if you find that the readings are not accurate, then calibration may be necessary.
@GainExpress to calibrate EC, can I use aquadest or do I need some special solution and whaf is it?
Really works well. Should have bought one sooner.
Need operating instructions for a beginner, not calibration. First, HOW TO USE to conduct each test.
What is mode need use for check furnace gas pressure, min ,max or avg? Thanks
Bar.
How to take measure in mm length& width .. pls explain
Garbage
Hi is it back lite?
Eu comprei o aparelho mas ele não tem a entrada para cartão SD. Acompanha cabo USB mas o PC não reconhece... Como faz para transferir as imagens para o PC?
Hi, May I know your order ID? you may send it to info@gainexpress.com to assist you further. thanks
After the ph calibration is the tds is also calibrated or do i need another buffer powder to calibrate tds?
Yes, you need another solution to calibrate the TDS
@@GainExpress thank you so much
What solution is needed to calibrate tds and ec?
@@enzeypogi you can calibrate it with any brand of standard solution. It's quite versatile in that regard, so feel free to use whichever brand you prefer for calibration. also there's no need for separate tds/ec/salt calibrations. Just a single calibration solution will suffice to ensure your equipment is properly calibrated. Just calibrate the EC for a hassle-free calibration process.
How much
Hi bhupee, for the price, you can check it here: www.gainexpress.com/products/clmg-7173_led
Price please
Hi bhupee, for the price, you can check it here: www.gainexpress.com/products/clmg-7173_led
Price
Hi muser, you may check the prices here: www.gainexpress.com/products/clmg-7173_led
The ph number keep jumping and not in 0 when I bought it. Is it normal?
Hi Chang, can you email us at info@gainexpress.com together with your Order ID. Thanks
How do I get this tester?
Hi Automac, You can check and buy this item through this link: www.gainexpress.com/products/dmt-3