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The LA516040 Laser Distance Meter is a professional measuring instrument with a class 2 laser. It is simple and easy to use. The device is used to determine the distance up to 40 meters from the point of sight to the object and performs the following functions: addition and subtraction, area and volume calculation, length measurement and continuous measurement, Pythagoras calculations (2 options). A large four-line LCD display graphically displays all measurements on the screen. The plastic case and special rubber strips of the case guarantee reliable protection of the device from mechanical influences, prevent the tool from slipping out. The device operates on two rechargeable batteries.

Oxygen meter Starter 300D provides accurate and reliable data on the concentration of dissolved oxygen, which is extremely important for the life of aquatic organisms and water quality control. Indication of the accuracy of the calibration process on the display; displaying the results in ppm, mg / l and% by pressing the button; the galvanic electrode is ready for operation right after power-on; intuitive software; compact, ergonomic design and low weight for ease of use in the field, and the swing-out support allows them to be placed on a laboratory bench ; five control buttons with clear function markings; IP54 protection; there is a dedicated area on the body for applying identification labels; memory for 30 measurement results; temperature compensation - automatic or manual; atmospheric pressure measurement range, mbar - 500 - 1100; measurement resolution atmospheric pressure, mbar - 1; correction for salinity, ppt - 0.0 - 50.0; power supply - 4 × AAA, more than 250 hours of operation; measurement range,% - 0.0 - 199.9; 200 - 400; resolution,% - 0.1 / 1; accuracy,% - ± 1; calibration by one or two points; < / li> dimensions (W × D × H), mm - 90 × 150 × 35; weight, kg - 0.18. Electrode for measuring dissolved oxygen STD011: measurement range,% - 0-200; operating temperature range, ° C - 0.0 - 50.0; electrolyte - 10% NaCI storage solution; body size, mm - 120 × 12; cable length, m - 1.1; < li> connector - BNC. Temperature sensor STTEMP30: operating temperature range, ° C - 0 - 100; connector - Cinch; body size, mm - 120; cable length, m - 1. Scope of delivery: ST300D oxygen meter, IP54 seals, electrode holder, hand strap and 4 AAA batteries, STDO11 galvanic dissolved oxygen sensor and STTEMP30 temperature electrode.

The NanoEx Photometer is designed for simple, convenient and reliable work with sample volumes from 0.5 μL. Four wavelengths: 260, 280 and 360 nm for optical density measurements in droplets and 600 nm for turbidity measurements in a conventional cuvette. NanoEX Features Automatic lid closure - no need to set the optical path length - measurement takes place automatically at several points; special stand for pipettes and built-in video camera for precise sample application on the well; no PC connection required; built-in Bluetooth for data transfer to a smartphone or printer; Technical characteristics Working volume of the sample, μL - 0.5; Optical path length (determined automatically), mm - 0 , 2-1; measurement time, sec - 5; cycle measurement time, sec - 10; measurement range, nm - 260, 280, 360 (baseline correction) and 600 (turbidity measurement in a conventional cuvette); detection limit - 4 ng / μl dsDNA; maximum concentration - 7.5 mg / ml dsDNA; absorption range - 0-150; error (at 1 mg / ml dsDNA),% - 3; light source - LEDs; detector - silicon photodiode; built-in software; color touch screen; base dimensions, mm - 148 × 179; weight, kg - 1.5.