Gain Express Holdings Ltd.

Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. The CL-181 Gemological....

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This Dual Function Meter simultaneously measures & displays air speed and temperature of the moving air. Super small in size and light weight but it has wide....

This new-generation self-leveling laser marker emit 3 beams, 2 horizontal and 1 vertical red beams. Suitable for use in construction and indoor decoration, manufacturing of doors....

This measuring and layout tool instantly determines the distance using electronic signals. It has a built-in computer chip that calculates area, volume, and length.

Its....

This Intelligent Stud Scanner makes wall scanning fast and simple. It can detect stud & joist, AC live wires or metals behind walls through electronic signals and shows it on a....

This Alcohol & Brix Refractometer is mainly use in grape wine brewing procedure to test the original grape fluids ( not the finished product) . This item is developed for working....

This Professional Multifunction AC/ DC Clamp Meter has both Auto & Manual Range with 5999 counts. This clamp meter measures DC and AC voltage, AC current, Resistance, Capacitance, ....

This is an Auto Range Professional Multifunction AC/ DC Clamp Meter with 3999 counts. Capable to measure DC and AC voltage, DC and AC current, Resistance, Capacitance, Temperature....

This Upper Arm Type Blood Pressure Monitor has Jumbo-Size LCD screen and 4 zone memory groups. Each zone automatically stores up to 99 data for each group with date and time for....

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The CD-4820, Digital Ultrasonic Cleaner, has much more stronger transducer and much more larger tank capacity. Now with much stronger cleaning capacity but still....

This soil moisture, pH, temperature and light tester offers 4 important measurements: pH Value, Temperature, Moisture, and Environment Sunlight Intensity. The sensitive 200mm....

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This non-contact thermometer has an ambient temperature ( TAMB) measurement function that measure surface temperatures fast without touching the target, avoiding....

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837-1 is a multifunction instrument that measures both temperature ( Â º C/ Â ° F) and salinity ( ppt) and simultaneously displays results. This meter is commonly....

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The Vane Anemometer and Temperature Meter measures air speed/ velocity and temperature of the moving air. hand held combined therma-anemometer and thermometer is....

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GVA-18B is one of our Environmental Instruments Series and is one of the most popular Multimeters selling today because of its compact size and it is so easy & ....

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Our PH-803 is most advanced type of CONTROLLER with which it can simultaneously measure and diplay the pH value and redox value ( ORP) as well as the other all at....

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GVA-505B is one of our Environmental Instruments Series. This auto scan R/ C/ D multimeter for SMD precisely & quickly measure small chip components. And it has....

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IR887-1 is a brand new, high quality Digital IR Thermometer for non-contact temperature measurements. You can discreetly and safely measure the surface....

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A battery refractometer is designed for testing the refractive index or concentration of battery fluids, antifreeze liquid and cleaning fluids that works....

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Salinity Refractometer is designed for testing the concentration of salt water and brine and used for quality control in research and clinical....

ZGRB-90ATC is way more useful with its built-in LED light that have been added to the unit, a flashlight or any other separate illumination won' t be needed or required even in....

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Ideal for use in poor lighting conditions, this 10x lighted loupe features a 21mm lens and contains six bright white LED lights to illuminate the field of view & ....

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This Wireless Sonar fish finder detects big and small fish either in groups
or not. Equipped with a Big & Adjustable High-contrast 128x64 Dot matrix
FSTN....

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Renowned for quality craftsmanship, our 2.5x Ultra-light loupe features a wider field of view, depth of field and high enough magnification for daily dental....

This revolutionary accurate and precise rectangular-shaped Digital Scale is bristling with never seen before features! It has a water-resistant feature and equipped with the most....

This accurate and precise round-shaped Digital Fishing Scale has the most important feature in digital scale, the tare function. The tare function can be manually resets the....

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This digital current clamp has multi-functions in one unit; measures AC current, AC voltage, DC Current, continuity, diode and resistance with up to 600A/ 600V ....

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This digital current clamp or current probe has multi-functions in one unit; AC current, AC voltage, DC Current, DC Voltage, continuity and resistance with up....

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This digital current clamp or current probe has multi-functions in one unit; AC current, AC voltage, DC Voltage, Frequency, continuity and resistance with up to....

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This one step dual tester with unmatched performance and ease of use can tell the difference between a real diamond and a well crafted piece of moissanite or....

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This highly reliable broad range combustible Gas Leak Detector for Industrial uses, HVAC, plumbing and plant maintenance is highly sensitive and an extremely....

One of our most basic unit that can be used for variety of applications. It has the advantage of low power consumption and is designed to work continuously generate ozone by....

This hand-held optical refractometer measures the density of sugars in the solution and gives you an instant gravity readings at any point during the boil, or run off from the....

This multi-angle gloss meter is fully featured and extremely easy to use. It measures from 0~ 200GU, allows you to obtain measurements at 20Â ° , 60Â ° , and 85Â ° and can be used....

This quality single angle meter measures from 0 to 200GU and has a built-in advanced electronic engineering to provide ease of operation and high accuracy. The long-term stable....

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This digital moisture meter has wide range of measuring range of 0~ 80% and adopts the electromagnetic induction technology to measure the percentage of water in....

This powerful, versatile and handy device is developed to determine the moisture content and temperature level of all types of grains, processed or unprocessed, whole or ground....

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With a newly engineered optical design, the 6.0x Ultra-High magnification combines all the features you want: ultra-high resolution, ultra-high true magnification....

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The 3.5x Ultra-Light combines all the features you want: ultra-high resolution, true 3.5x magnification and lightweight comfort, 60mm field of view and 55mm depth....

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This IR Mini Thermometer is a non-contact instrument designed to take precise body temperature measurements of a person regardless of room temperature. It has an....

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This thermometers look like an extra-large needle with a temperature gauge on the end. It delivers reliable results when you want accurate measurement readings of....

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This is a 2-in-1 ultrasonic thickness meter that measures the thickness of ultrasonic wave well-conductive material with parallel top and bottom surfaces from 1....

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This probe-type moisture meter is designed to measure the material moisture and air temperature simultaneously. With 0.1% resolution and  ± 2% accuracy, it can....

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This PH-303 Digital ORP and pH Controller is an upgraded version of our PH-203 Controller. It is the industrial & heavy duty version with a new re-engineered....

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Design mainly to fit right to any camera & microscope. GX-480 have the ADJUSTABLE 62MM MOUNTING DIAMETER that covers a well-distributed illumination that....

This EMF/ ELF Single Axis Gauss Meter is designed to measure electromagnetic fields with extremely low frequency ( ELF) of 30~ 300Hz. Provides readout in milliGauss( mG) and....

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ORP-8651 measures pH, ORP and temperature accurately with advance features such as multi-display LCD screen wherein it simultaneous display ( pH/ mV & temperature....

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TH-8708 is design to measure and display environment Temperature and Relative Humidity simultaneously with some added features such as capacitance polymer....