Contact Us
-
Tel: +8618822802390
-
E-mail: admin@gvda-instrument.com
-
WhatsApp: 8618822802390
-
Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
Penetrating Food PH meter for semi-solid substances1. Penetrating PH meters are highly accurate, stable, reliable and easy to carry. 2. it can measure PH value and temperature. . 3. LCD Indication Alarm for over Range value. 4. Tempearture
Add to Inquiry
Rechargeable Color LCD PH Acidity MeterThis is PH828+ Rechargeable Color LCD PH Acidity Meter Water Quality Detector, Digital pH Meter Waterproof Water Quality Tester Water Test Meter for Drinking Swimming Pool Hydroponic
Add to Inquiry
Portable 4 in 1 Penetrating Soil Food PH TesterPenetrating PH Tester is for Semi-solid,Dough,Meat Food Liquid PH Detection Vegetable Bread PH Tester Temperature detector It can measure the pH value of the solution and display the temperature of
Add to Inquiry
Rechargeable Natural Gas Detector With Extendable ProbeGVDA GD139 Natural Gas Leak Detector with 12-inch Extendable Probe,%LEL Propane Leak Detector with Built-in Flashlight for Methane, Butane, Combustible Gas for Home, RV, This GD139 meter is a
Add to Inquiry
Portable Ammonia Gas DetectorSMART SENSOR Ammonia analyzer is a continuous quantitative analysis of formaldehyde concentration apparatus, the apparatus using imported high precision electrochemical principle formaldehyde sensor,
Add to Inquiry
Portable 0~30% Vol Oxygen Gas DetectorThis is ST8100B Handheld Portable 0~30% Vol Oxygen Gas Detector O2 Detector Tester Meter,Indoor Air Quality Monitor Temperature Thermometer Alarm, This is a precision oxygen concentration instrument,
Add to Inquiry
Combustible Gas Leak Detector With LCD DisplayDigital Larger LCD Combustible Gas Detector Gas Analyzer Flammable Natural Gas Leak Location Determine Meter Gas Tester Sound Light Alarm
Add to Inquiry
Large LCD Combustible Gas Leak Location Determine AnalyzerSMART SENSOR combustible gas leak detector with visual leakage indicator, can detect gas leakage. All you need to know the high reliability testing instrument in the use of all kinds of refrigerants,
Add to Inquiry
Flammable Natural Tester with Visual Leakage IndicatorBrand Name: SMART SENSOR. Color: Red + Black. Material: ABS Plastic. Detection Gas: Combustible Gas
Add to Inquiry
Handheld Oxygen O2 Gas Analyzer 0 To 30%SMART SENSOR gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control
Add to Inquiry
Portable Pen Type PH Water Quality TesterIf so, this pen-type pH meter is what you need. Featuring the automatic temperature compensation which will automatically compensate the solution temperature of 0~70℃, it can provide you the accurate
Add to Inquiry
Digital Wood Moisture Meter1.High frequency:Measurement electromagnetic wave. 2.LCD screen: Large LCD screen. 3.Selection: Selection of 10 wood density modes. 4.Indication symbol: User friendly symbol indication. 5. Measuring
Add to Inquiry
Portable Digital Dissolved Oxygen Analyzer1. Dissolved Oxygen Measuring Range: 0.0~30.0mg/L. 2. Resolution: 0.1mg/L. 3. Accuracy: ±3.0%. 4. Calibration: Calibration of 100% saturated dissolved oxygen in air. 5. Temperature Measuring Range:
Add to Inquiry
Combustible Natural Methane Gas Leak DetectorUsed to find a leak (leak source). Examples include gas pipelines, propane irrigating stations, tank leaks, waste water and fuel leaks. (Not suitable for detection in big environment gas such as
Add to Inquiry
Digital Humidity Moisture Meter for Plants Corn Grains1.AR991 Grain moisture meter2.range: 7.5%-50%3.Accuracy: 01/01%4.Resistance alarm seting:pre-set 10 adjustable5.power supply: 4pcs 1.5V AA Batteries6.Pinciple of measurement: Resistance
Add to Inquiry
Inductive Pinless Wood Moisture tester1.High frequency:Measurement electromagnetic wave. 2.LCD screen: Large LCD screen. 3.Selection: Selection of 10 wood density modes. 4.Indication symbol: User friendly symbol indication. 5. Measuring
Add to Inquiry
Timber Damp Detector Paper Digital Moisture MeterThis Wood Moisture Tester is a professional moisture meter used to measure the moisture level in sawn timber (also paper and cardboard) and hardened materials (mortar, concrete and plaster) as well
Add to Inquiry
3 in 1 Soil Ph Tester With Temperature Moisture1.PH measuring range: 2.0PH~8.5PH. Accuracy: ±0.2PH. Resolution: 0.01PH. 2.Soil temperature measuring range: -10°C to 60°C. Temperature accuracy: ±1.5°C. Resolution: 0.1°C. 3.Soil moisture
Add to Inquiry
Digital WiFi Carbon Dioxide CO2 RecorderSMART SENSOR gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control
Add to Inquiry
Combustible Gas Analyzer Monitor for Home1. Portable detector for detecting all combustible gas.. 2. Gas- sensitive semi-conductor Sensor. 3. Audible semiconductor probe and auto fast warm-up.. 4. Instant response, pinpoint leak position
Add to Inquiry
pH measurement is often a critical early step in your workflow. We offer an extensive line of pH meters, pH electrodes, pH buffers, and pH measurement accessories designed to work...
If you're looking for something a little more compact, you might also consider the Checker pH Tester. This particular item is designed to supply users with a fast, easy and reliable way to take pH...
Finally, it should be noted that equation 2 is somewhat misleading. The equation implies that pH is a measure of concentration. In fact, pH is really a measure of ion activity. Concentration and...
Mar 2, 2019 · pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH...
Jan 24, 2019 · pH is a unit of measurement that describes the degree of acidity or alkali content of a solution. The pH unit is measured in terms of 0 to 14. The pH is formed from quantitative...
electrode potential (E) = E’ – slope (pH) (1) where E’ is a reference potential and the slope is the Nernst slope (theoretically 59.16 mv/pH at 25 0 C). Notice that equation 1 is a simple linear...





