HUIXINLIANG Oxygen Tester Portable Dissolved Oxygen Meter,0~20mg/L Dissolved Oxygen Meter Do Detector 0~40℃ Temp Tester,Small Size,Economy Portable Dissolved Oxygen Meter Easy to Carry

  • Handheld IP67 Waterproof Combo Water Quality Meter..
  • Dissolved Oxygen Tester, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,TDS and D.O. (Dissolved Oxygen) in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
  • Large LCD with multiple parameters (PH, COND, SALT, TDS, DO) display simultaneously.
  • Application: Especially suitable for use in freshwater or seawater aquaculture farms!.
  • Quick And Easy Multiple Points Calibration: 3 points for pH, 1 point for DO, 4 points for conductivity.
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Professional Handheld Alcohol 0‑80% Test Refractometer, Tester Meter Measure Instrument

  • 【Wide use】 TDS instrument tester can be used for water purifiers and filters, food (vegetables, fruits) and beverage quality monitoring, swimming pools and spas, aquariums, hydroponics, etc. It is suitable for water quality testing in water laboratories, CDC, aquaculture, hospitals, swimming pools and household tap water..
  • 【Test the purity of your water】 How pure is your water? Use this portable TDS meter tester to test the purity of water, use our TDS water quality tester, it will tell you your overall water purity level and display it on the screen in ppm (parts per million)..
  • 【Function】Our TDS meter tester has a hold function and an automatic shutdown function, which can save the measured value for easy reading and recording. Turn off the meter after 10 minutes of non-use to save battery power. Press the "TEMP" key to switch the thermometer between Fahrenheit and Celsius..
  • 【Measuring range】 0-9999ppm, resolution 1ppm. From 1,000 to 9,999 ppm, with a resolution of 10 ppm, expressed in drinking x 10 images, factory calibrated. To ensure that you always drink pure and safe water, we recommend that every household use a TDS tester..
  • 【Multiple choices】 We have a variety of different colors for you to choose, different colors meet y....
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Digital Hygrometer and Thermometer, Briidea Humidity Temperature Monitor Humidor Guitar Ukulele Mason Jar

  • Multipurpose! Embedded Installation Type! LCD Digital Display! Widely used in home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places equipped with air-condition, etc.
  • Temperature range is Celsius only on this model.
  • Digital hygrometer and Celsius temperature reading.
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TDS Meter Tester, Digital LCD Water Quality Tester Filter Pen, 0‑9999 PPM Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums (Red)

  • 【Wide use】 TDS instrument tester can be used for water purifiers and filters, food (vegetables, fruits) and beverage quality monitoring, swimming pools and spas, aquariums, hydroponics, etc. It is suitable for water quality testing in water laboratories, CDC, aquaculture, hospitals, swimming pools and household tap water..
  • 【Test the purity of your water】 How pure is your water? Use this portable TDS meter tester to test the purity of water, use our TDS water quality tester, it will tell you your overall water purity level and display it on the screen in ppm (parts per million)..
  • 【Function】Our TDS meter tester has a hold function and an automatic shutdown function, which can save the measured value for easy reading and recording. Turn off the meter after 10 minutes of non-use to save battery power. Press the "TEMP" key to switch the thermometer between Fahrenheit and Celsius..
  • 【Measuring range】 0-9999ppm, resolution 1ppm. From 1,000 to 9,999 ppm, with a resolution of 10 ppm, expressed in drinking x 10 images, factory calibrated. To ensure that you always drink pure and safe water, we recommend that every household use a TDS tester..
  • 【Multiple choices】 We have a variety of different colors for you to choose, different colors meet y....
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EWT Digital Thermometer and Hygrometer Temperature Humidity Monitor Accurate Humidity for Humidor, Instruments, Herbal Storage and More.

  • Measuring humidity range :10%~99%RH, Measuring humidity accuracy: ± 5%, Humidity display resolution: 1%RH, Measuring temperature range :0°c to 50°c..
  • Measurement temperature accuracy: ± 1°c, Temperature display resolution: 0.1°c, Install panel hole size: D42mm..
  • Operating Voltage: 1.5V, one button cell size LR44(Now included), Color: black..
  • Widely used in home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places equipped with air condition, etc..
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TDS Meter Digital Water Tester - PPM Quality Testing Tool 3-in-1 (TDS, EC & Temp) High Accuracy ATC Tester, Nutrient Testing Pen for Hydroponics, Monitor Ro System, Pools, Aquariums & Saltwater Tanks

  • HOLD AND AUTO-OFF FUNCTIONS: the 7Pros TDS meter has data-hold function, it locks your readings making it easy to record. The EC Meter will automatically shut down after 9 min of inactivity.
  • FACTORY CALIBRATED: our ppm meter is factory-calibrated at 342 ppm NaCl and designed to stay consistent.
  • ACCURATE: TDS readings are adjusted with automatic temperature compensation, assuring users of consistent and accurate measurements of total dissolved solids.
  • EASY TO USE: The tds meter digital water tester will get your testing results in seconds. Turn on, immerse the electrode in the testing liquid, press Hold button and read the numbers.
  • WIDE USE: Our conductivity meter is Ideal for all water quality testing, its a ppm meter for hydroponics, water purification applications, aquariums and saltwater tanks, wastewater regulation, aquaculture, laboratory and scientific testing, pools, ecology testing, colloidal silver, water treatment, etc..
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ZLYCZW 3 in 1 Multifunctional Water Quality Detector IP67 Handheld PH Meter Dissolved Oxygen/Conductivity/Salinity Test Dissolved Oxygen Meter

  • ★ Water Quality Meter, also been called as Water Testing Device or Water Quality Testing Device, it’s the device that measure the value of pH,....
  • ★ Conductivity, Salinity, TDS and D.O. Dissolved Oxygen in liquid, which had been widely used by Aquaculture, Aquaponics or Fish Farm..
  • ★ Handheld IP67 Combo PH/COND./SALT/TDS/D.O was being designed and manufactured by well experienced manufacturer for Environmental Measuring....
  • ★ Large LCD with multiple parameters display simultaneously: PH, Conductivity or Salinity or TDS, Dissolved oxygen & Temperature..
  • ★ Multiple points calibration: 3 points for pH, 1point for D.O.,4 points for conductivity..
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No.1000 Wei Shi Timegrapher, Mechanical Watch Timing Machine, Multifunction Tester with LCD Screen

  • The frequency diagram of the watch can be displayed in the LCD screen..
  • According to different watches, the instrument will automatically adjust optimal signal level during testing..
  • The instrument will automatically calculate the rate, amplitude, beat error, and display them by data in real time..
  • For the conventional beat, the instrument can automatically response.
  • for the special beat, can manually select..
  • The sampling period can selected by 2 seconds, 4 seconds, 6 seconds, 8 seconds, 10 seconds, 20 seconds, 30 seconds, 60 seconds, and the average of corresponding period will be regard as the precise value of the watch..
  • Six kinds of testing position can be adjusted, and the simulation sound can be play in the speaker or mute..
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Refrigeration Digital Manifold Gauge Meter HVAC Vacuum Pressure Temperature Tester Kit with Test Clip and Pipe for Testing Maintaining Air-Conditioner, Refrigerator

  • The intelligent electronic refrigerant group instrument is an auxiliary instrument for the installation, testing and maintenance of refrigeration equipment such as air conditioners,fridge and cold storage..
  • Also it tests percentage of vacuum measurement.
  • pressure leak measurement, leak time speed record. It is deserved to have this multi-functional, accurate and simply operated digital manifold let you do the job right..
  • The intelligent electronic refrigerant group instrument is an auxiliary instrument for the installation, testing and maintenance of refrigeration equipment such as air conditioners, fridge and cold storage. HVAC System Gauge Set has double pressure test, dual temperature test, digital readout, multi-unit switching, multi-mode function and built-in refrigerant database..
  • The instrument can measure double pressure at the same time, as well as dual temperature measurement, with automatic multi-unit pressure conversion, automatic conversion of temperature Celsius / Fahrenheit, to facilitate different needs. Built-in 89 kinds of refrigerant pressure-evaporation temperature database, also calculate the subcooling superheat, to facilitate direct reading of operating process data..
  • The instrument uses high-strength engineering plastics and flexi....
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JEDEW 2-Pack Hygrometer Gauge Thermometer Indoor/Outdoor,Mini Digital Temperature Humidity Meter for Humidifiers Greenhouse Reptile Plant Humidors ,LCD Monitor Display in Fahrenheit ℉

  • 1-Mini digital hygrometer-thermometer allows you to easily know the environment temperature and humidity. Small, Durable and Portable enough for....
  • 2-Temperature measuring range: +32°F ~ +158°F.
  • Humidity measuring range: 10%~99%RH (Fast response that measures every 10 seconds with 24 sensitive....
  • 3-Fahrenheit (℉) display, this thermometer displays temperature in Fahrenheit(℉)..
  • 4-Temperature measurement accuracy: +/-2℉.
  • Humidity measurement accuracy: +/-5% RH (Normal range)..
  • 5-WIDE USAGE: Applicable for home, office,schools, car, hotels, laboratories, garden, crawler box, aquaculture, instrument workshop, Greenhouse,....
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Fluke VR1710 Voltage Quality Recorder

  • Continuous recording of all values with No gaps - save testing time by getting the whole picture with one instrument that records both events and Voltage.
  • Clear graphical summary of data and quick overview of Key power quality parameters.
  • The Vr1710 Includes Plug-In Fluke Vr1710, USB cable.
  • Fast and easy recording of voltage trends, dropouts, and power quality - Easily pinpoint the root cause of single phase voltage problems.
  • Extremely easy to use - Plug directly into the mains power socket and capture data.
  • Continuous recording of all values with no gaps - Save testing time by getting the whole picture with one instrument that records both events and voltage.
  • Clear graphical summary of data and quick overview of key power quality parameters.
  • The VR1710 includes plug-in Fluke VR1710, USB cable.
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6 Pack, Mini Small Hygrometer Thermometer, Fahrenheit (℉) 10 Seconds Refresh, Round Digital Indoor Humidity Gauge Monitor with Temperature Meter Sensor

  • Applicable for home, office, schools, hotels, car, laboratories, kindergartens, aquaculture, instrument workshop, libraries, factories and places equipped with air condition, etc..
  • Fahrenheit (°F) or Celsius (°C) conversion, Temperature accuracy +/-1°C(+/-1°F), Humidity accuracy +/-1%RH..
  • Goabroa portable hygrometer thermometer Measures Indoor humidity and temperature in time, help to adjust the humidifier, dehumidifier settings and humidistats, great for monitoring family's living conditions and health by preventing colds, dry skin, asthma..
  • 10 seconds fast response measures with 24 sensitive VENTS to provide updated and accurate readings, wide measuring range: work temperature from 0℃ to 70℃(+32°F ~ +158°F), work humidity from 10% to 99% RH..
  • Small, Durable and Portable enough for saving space and carrying around. Mini round digital humidity thermometer allows you to easily know the environment temperature and humidity..
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Spectrophotometer 4 LDC 721 Digital Lab Visible Wavelength Range 350-1020nm Wave Tungsten Lamp Equipment 110V Photometer USA Stock

  • ★ The product is an economical analytical instrument with RS232 (not included) interface output. Digital display measurement value.
  • ★ Automatic light door, automatic zero adjustment and 100 instrument calibration, Excellent metering accuracy is higher than that of the same instrument.
  • ★ Use original imported tungsten lamp to ensure the service life of the instrument.
  • ★ Large sample room, can hold up to 10cm cuvette, It is widely used in medical testing, food, petrochemical industry, environmental protection and monitoring.
  • ★ Optional output port RS232, which can connect printer and connect computer function.
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