Best Efficient Comparison

Borosilicate Glass 10mL Standard Color Comparison Tube (Matched Set of 12)

Standardized glass tubes used to fill with standard solution colors for visual color comparison with similar tubes containing solution samples.
Color comparison tubes are used for visually comparing solution sample colors..
Matched set of 12 tubes for consistent graduated-ring scale..
Shadowless bottom transmits undistorted light..

UPGRADED ELITECH TOOLS APP(ioS and Android): An intergraded app, allows users to manager all Elitech tools as vacuum pump, digital manifold, vacuum gauge, pressure gauge, refrigerant charging scale on one app, more efficient and more intelligent..
MULTIPLE REFRIGERANTS & UNITS: Support the saturated temperature-pressure comparison table of more than 87 kinds of refrigerants. 7 pressure units can be selected, psi, inHg, kg/cm², cmHg, bar, kPa, Mpa..
APP CALCULATION: Superheating and subcooling can be calculated when entering the pipe temperature in App, fast & easy while reducing manual calculation mistakes..
OFFLINE RECORD: The wireless pressure digital gauge can record data offline and transmit the current pressure value to the app by Bluetooth automatically, which helps you read data at any time anywhere..
HIGH PROTECTION LEVEL: The pressure gauge is made by ABS and PPT and the waterproof level is IP65. 24/7 US Technician Support via Email and Phone..

1:Color comparison tubes are used for visually comparing solution sample colors..
2:Matched set of six tubes for consistent graduated-ring scale..
Shadowless bottom transmits undistorted light.
no dark spots form when tube is filled with liquid and viewed from the top using a light source beaneath the tube.

Made of glass, good thermal stability, chemical stability, mechanical properties,high transparency.
Standardized glass tubes used to fill with standard solution colors for visual color comparison with similar tubes containing solution samples.
In contrast, two colorimetric tubes were placed in front of white paper of the same degree of illumination, and the color difference was observed with the naked eye.
Color comparison tubes are used for visually comparing solution sample colors.

Made of glass, good thermal stability, chemical stability, mechanical properties,high transparency.
Standardized glass tubes used to fill with standard solution colors for visual color comparison with similar tubes containing solution samples.
In contrast, two colorimetric tubes were placed in front of white paper of the same degree of illumination, and the color difference was observed with the naked eye.
Color comparison tubes are used for visually comparing solution sample colors.

... AUTOMATIC CALCULATION: Superheat/subcool calculations, recording, reporting, analyzing data, settable high/low pressure alarms, and data export in Excel or PDF format..
140 REFRIGERANTS & 7 MEASUREMENT UNITS: Support the saturated temperature-pressure comparison table more of 140 kinds of refrigerants. The units can be selected among psi, inHg, kg/cm², cmHg, bar, kPa, and Mpa..
HIGHER PROTECTION LEVEL: The pressure gauge is made by ABS and PPT and the waterproof level is IP65. The package includes a portable case with a handle and two temperature clamps..
WIDE APPLICATION: This digital HVAC gauges electronic refrigerant group instrument, measuring temperature and pressure in real-time, is an auxiliary instrument for the installation, testing, and maintenance of refrigeration equipment such as air conditioners, fridges and cold storage. 24/7 US Technician Support via Email and Phone..

1:Color comparison tubes are used for visually comparing solution sample colors..
2:Matched set of six tubes for consistent graduated-ring scale..
Shadowless bottom transmits undistorted light.
no dark spots form when tube is filled with liquid and viewed from the top using a light source beaneath the tube.

1:Color comparison tubes are used for visually comparing solution sample colors..
2:Matched set of 12 tubes for consistent graduated-ring scale..
Shadowless bottom transmits undistorted light.
no dark spots form when tube is filled with liquid and viewed from the top using a light source beaneath the tube.

8 inch Wireless Non-contact automatic body temperature detection,Temperature measurement range 86~108.5(°F) Accuracy ± 1 (°F)，Support interface docking in HTTP mode.
Adopt dynamic face detection and tracking recognition algorithm based on video stream,Support local storage of 10,000 face libraries on the device,the accuracy of 1:N recognition is 99.7% under the condition that the false recognition rate is three out of ten thousand.
Fast recognition speed:Face tracking and detection takes about 20ms,Face feature extraction takes about 200ms,Face comparison takes 0.2ms (1000 people base, multiple recognition takes the average), 0.5ms (10000 people base, multiple recognition takes the average).
Binocular with infrared light camera,Support for saving on-site photos during face recognition or stranger detection.
Widely used in gate channel and access control attendance，such as Entrance and Exit of Office, Schools, Industry, Station, Hotels, Stores, Supermarkets, Security Departments and other Crowded Area,to achieve safe and efficient access control of personnel,which you could clearly know that you are in a safe environment.