Top 6 Best Do Meter

Decibel Meter with AC Weighting TopTes TS-501B decibel meter uses a precise condenser microphone to capture sound. Its equipped with A-weighting and C-weighting facilities that measure noise levels from 30 to 130 dB with an accuracy of 1.5 dB, Frequency from 30 to 8,000Hz. Perfect for monitoring noise levels in communities, home theaters, audio systems, automobiles, workshops, schools, offices, factories. 2.25-inch LCD Screen with Backlight This TS-501B sound level meter is measured noise levels are expressed in decibels dB and displayed on the 2.25-inch LCD screen, it easy to read on a big display design. Long press the backlight button to turn on a backlight, making it easy to view even in damn light. MAXMIN Measurement, Date Hold The sound pressure level SPL meter has Max or Min measurement values to represent the maximumminimum highlow peak value of the sound produced within a certain time, and the data hold function can freeze the current reading based on the sound measurement according to individual needs. Easy Use and Feature Packed The non-slip side design ensures that the portable noise meter fits easily in the hand. TS-501B SPL meter is a battery-operated noise meter that comes with three durable batteries and has an automatic power-off function to extend battery life. A low battery indicator will appear on the screen when the battery is low to remind the user to replace the battery in time. Whats in the Box1x TS-501B Decibel Meter, 3x AAA Batteries, 1x User Manual, 1x Carry Case. TopTes sound level meter with a 3-year Warranty and lifetime technical support. Please feel free to contact us if you have any questions or concerns.

Portable dissolved oxygen DO meter for educational, aquaculture, water analysis, and environmental analysis applications. Two-point manual calibration, automatic temperature compensation from 0 to 30C. LCD screen. Polarographic probe with 3m cable and screw-on cap membrane.

Easy 100 D.O value calibration. Stores and Recalls 99 points, Real Time Indication for Each Memory. Auto Temperature Compensation Manual Salinity and Barometric Pressure Compensation. Accurate Dissolved Oxygen readings .

Equipped with state-of-the-art Optical DO sensor measures dissolved oxygen level in a reliable and effortless manner. Minimal maintenance required. No need for solution refill or frequent membrane change.. Easy auto. Calibration for saturated air and zero-oxygen. IP67 waterproof and dust-proof structure, ideal to be used in harsh environments. Comes with a complete meter kit, including the DO meter, 10 ft optical probe, calibration cap, and a rugged carrying case.

9-in-1 meter with lab performance. Measures dissolved oxygen concentrationsaturation, pH, mV, conductivity, TDS, salinity, resistivity and temperature. Automatic salinity compensation and manual barometric pressure compensation for DO measurements. One button pH calibration 4, 7, and 10pH. Choice of 3 point pH calibration for better accuracy.

MEASURING RANGES D.O Measurement Range 0199.9 019.99 PPM 019.99 mgI ,with Accuracy 1.5 F.S , Temp Measurement Range 050 C. MORE FEATURES Big LCD with D.O and temperature value display ,Easy 100 D.O value calibration, With 99 memory Data with Temperature Readings,Battery Low Indication. LARGE VIEWING LCD size h 44 mm x W 26 mm , LCD display shows measured DO are displayed in or in ppmmgl and Barometric are displayed in mmHg or KPA, Temperature in C, reading and real time in YearMonthDate and HourminuteSeconds interchangeably.. WIDE APPLICATIONS Aquacultur,Industrial Ideal for checks the quality of plant water intake,discharge,Environmental To test water quality, BOD Biochemical Oxygen Demand value , Educational Ideal for quick, accurate DO readings in laboratories and schools. SET INCLUDES 1 x Dissolved Oxygen Meter 1 x Probe w 333cm Cable 4 x FREE AAA batteries 5 x Teflon Membrane 5 x O-ring 2 x Replacement Electrolyte Solution 1 x Filler Tube Use for Filling Electrolyte into D.O. Electrode.

0 to 50C Temperature Range. 1.4 D x 6.9 H x 1.6 W. 3.8 oz Weight. DO sensor with easy to replace screw-on membrane cap with optional extension cables. Oxygen level displayed as percent saturation or concentration mgL ppm. Adjustable altitude compensation 0-20,000-Feet in 1,000-Feet increments. Adjustable salinity compensation from 0 to 50ppt. Analog bargraph indicates trends.

Package of 10.

Dissolved oxygen meter is a precision instrument for measuring dissolved oxygen and temperature. The dissolved oxygen probe is a thin film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable membrane separates the measured solution from the sensing electrode but allows oxygen to pass through the membrane to react, and the concentration can be measured.. Dissolved oxygen refers to the concentration of molecular oxygen dissolved in water, generally expressed in mgL ppm and saturation percentage , which is the percentage of dissolved oxygen in 1L of water. The oxygen concentration of our dissolved oxygen meter is 0.0-40.0mgL, most of the range of dissolved oxygen meters on the market is 0.0-20mgL. When measuring and calibrating, needn't open the protective cover of the electrode, just put the electrode in the solution for measurement.. Detachable probe, easy to replace, equipped with 6 probe protective covers. The film inside the protective cover cannot be taken apart. After using for a period of time, the test value is inaccurate and the calibration is still inaccurate, and the membrane sleeve needs to be replaced.. Adopts the digital screen display with backlight, which is more clear and convenient to read data. Auto power-off in 8 minutes if not using it. Low battery indication. Oxygen solubility will be affected by temperature, atmospheric pressure, and salinity. Our instrument with temperature compensation can meet normal use.. It is very suitable for measuring the dissolved oxygen level and temperature in a wide range of aquariums, swimming pools, ponds, freshwater aquaculture, marine aquaculture, school teaching experiments, laboratory sterile environment, aquaculture, scientific research, and other fields..

Handheld dissolved oxygen DO and temperature meter for lab or field use. One Touch Cal feature calibrates the meter within three seconds. Graphical, backlit display and glow-in-the-dark keypad. Takes a field cable and a polarographic or galvanic probe for field use, or a cable-probe assembly for lab use cables and probes sold separately. Impact-resistant and waterproof, rated IP67.

accurately displays a digital readout for dissolved oxygen in either oxygen or ppm saturation. measurement range is 00.0 20.0 ppm, rapid response. high performance refillable polarographic probe with automatic temperature compensation. sturdy, ease of calibration. rugged construction.