Product description: Surface runoff is the flow of water that occurs when excess water from rain, meltwater, or other sources flows over the earth's surface. This might occur because soil is saturated to full capacity, or because rain arrives more quickly than soil can absorb it. Surface runoff is a major component of the water cycle. It is the primary agent in soil erosion by water. QT series tipping bucket flowmeter can be used to monitor no-pressure, low-head, and small discharge flow of surface or underground runoff.
Product description: surface runoff is the flow of water that occurs when excess water from rain, meltwater, or other sources flows over the earth's surface. This might occur because soil is saturated to full capacity, or because rain arrives more quickly than soil can absorb it. Surface runoff is a major component of the water cycle. It is the primary agent in soil erosion by water. Qt series tipping bucket flowmeter can be used to monitor no-pressure, low-head, and small discharge flow of surface or underground runoff. Features Stainless steel, suitable for long-term use in extreme environment Data logger achieves nema 6 and ip67 standard, suitable for outdoor use Power supply is simple, cr-2032 3v lithium battery, no need of solar panel and storage battery Suitable for monitoring of surface runoff and underground runoff
Qt-wm series handheld weather station is a mini instrument with multiple functions. It is used to measure wind speed, air temperature, humidity, altitude, dew point, barometric pressure, etc. With lcd displays, they are foldable, portable and easy to use. Technical parameters Parameters Qt-wm1000 Qt-wm2000 Qt-wm3000 Qt-wm4000 Measurement range Ws 1.1-20m/s Ws 1.1-20m/s H 0~100% Ws 1.1-20m/s H 0~100% P 400~1000mbar Ws 1.1-20m/s H 0~100% P 400~1000mbar Asl -600~7000m Resolution Ws 0.1m/s Temp 0.1 Ws 0.1m/s Temp 0.1 H 0.1% Ws 0.1m/s Temp 0.1 H 0.1% P 1mbar Ws 0.1m/s Temp 0.1 H 0.1% P 1mbar Asl 1m Accuracy Ws â±5 Temp â±1 Ws â±5 Temp â±1 H â±3 Ws â±4 Temp â±1 H â±3 P â±3mbar Ws â±4 Temp â±1 H â±3 P â±3mbar Dew point Ã? Cool breeze Heat index Ã? Ã? Asl Ã? Ã? Ã? Display 4-digit display lcd Measurement unit Ws: m/s, ft/min, knots, km/hr, mph Temp: / Ws: m/s, ft/min, knots, km/hr, mph Temp: /, barometric pressure: mbar/inhg Dimensions 235ã?45ã?25mm (open) 140ã?45ã?25mm (closed) Weight About 90g Power Cr2032 battery Operating environment Temp 0-50h
Http://www.Channeleco.Com/en/item/show.Asp?m=1&d=1195 Product description: a reasonable assessment of water balance and evapotranspiration is an important part of hydrological cycle; a lysimeter is a useful tool to evaluate the use of water in the soil, water storage and transfer in the same location. Qt-3051 series lysimeter can apply to laboratory for the study on parameters relevant to water balance. To make calculation easy, the height of column barrel of this system is designed to 300 mm, 600 mm, 1200 mm respectively, other height can be customized. The system uses state-of-the-art high-resolution weighing system, high-precision soil moisture and water potential sensor to ensure the accurate measurement of the entire system. Applications The lysimeter system can be used in many area, such as water characteristic curve, ecological restoration, small-scale simulation experiment, fluidity of soil water, soil mass transfer, soil absorption and buffering, water balance analysis, leachate analysis, groundwater recharge analysis, mass migration, material transformation research, farming method research, climate research, energy balance studies, correction of simulation experiment, water flux studies, simulation studies on groundwater recharge, determination of the leachate and so on. Measurement parameters Soil column weight Soil water potential Soil moisture Soil temperature Data acquisition Basic input: 8 differential analog channels Channel extension: am16/32 channel expansion module, 32 differential analog channel Storage capacity: 4m memory card
Product description: QT-SM101 is based on TDR (Time domain Reflectometry) technology, it can be used to rapidly measure the moisture of various types of soils. By measuring the dielectric constant of soil or other media, the meter can calculate soil water content, because soil water content is closely related to the dielectric constant. Soil temperature is measured via high-precision thermistor. Soil moisture and temperature data can be transmitted to a handheld Android terminal by WIFI. Feature GPS coordination can be recorded Record data automatically or manually Wireless data transmission via Wi-Fi Recognize sensors by two-dimensional code Automatically recognize connected sensors Terminal memory card is up to 32G Display real-time data and curve of recorded data Export data to Excel for analysis
Product description: The QT-SM01 is a soil moisture meter, consisting of a soil moisture sensor and a portable data logger. It can apply to agriculture, forestry, environmental protection, water conservancy, meteorology and other sectors for soil moisture monitoring, irrigation, greenhouse control and precision agriculture. The meter can be used to rapidly measure the moisture of various types of soils at upper and lower layer. It is able to meet the requirements of soil moisture monitoring, scientific research, production and teaching, etc. Technical parameters Moisture sensor: cylindrical PVC waterproof probe with four 6 cm long stainless steel probe, it can be also kept in the soil for a long term observation at a fixes position or and on-line measurement Extension rod for moisture sensor: length 80cm Measurement range: 0~100% Vol Accuracy: ±3% (0~60% Vol), ±1%(after calibration) Response time: < 0.3 s Storage module: software included, more than 12,000 data, no data lost when power failure Data display: LCD with backlight, shutdown automatically, power-saving mode Power supply: 8.4V rechargeable lithium battery, charger included Communication interface: RS232 Battery life: continuously for 48 hours in frequent use Standard configuration QT-SM01 soil moisture meter includes soil moisture sensor, portable data logger, USB cables, portable case, charger, software, manual and extension rod. Origin: China
Product description: QT-SM100 soil moisture meter is based on TDR (Time domain Reflectometry) technology, it can be used to rapidly measure the moisture of various types of soils. By measuring the dielectric constant of soil or other media, the meter can calculate soil water content, because soil water content is closely related to the dielectric constant. Soil moisture data can be transmitted to a handheld Android terminal by WIFI. Feature GPS coordination can be recorded Record data Automatically or manually Wireless data transmission via Wi-Fi Recognize sensors by two-dimensional code Automatically recognize connected sensors Terminal memory card is up to 32G Display real-time data and curve of recorded data Export data to Excel for analysi
Product description: QT-PH350 is a sophisticated but durable pen-like pH meter with independent electrodes. It can be used for several years if it is operated correctly. Features Standard accessories include detachable pH test pen, pH electrode and pH 4, pH 7 standard solution Nib type pH electrode is the ideal probe for measuring permeable object, such as soil, meat, cheese etc., the electrode is embedded in a solid glass pen Detachable pH probe can be used for regular or remote measurements Automatic calibration with pH 4, 7,10 standard solutions Rotation display button Data Retention Auto power-off Small and lightweight Waterproof panel Applications Agriculture, horticulture, food processing, teaching, industrial and quality management Specifications Data reader Screen 20 mm x 28 mm LCD with rotation display function Measurement range 0~14 Resolution 0.01pH Accuracy ±0.07(5~9) ±0.1 (4~4.9, 9.1~10) ±0.2 (1~3.9, 10.1~13) (23±5â??, calibration values) Input impedance 10~12 ohms Temperature compensation Not necessary Sampling time About 0.8 s Data Retention Freeze the current display data, convenient for reading Calibration Automatic calibration with pH 7, 4 or 10 standard solutions pH electrode connector BNC interface Operating Temperature 0~50â??(32~122â??) Operating humidity
Product description: Equilibrium tensiometer is a new revolutionary soil water potential meter which has patent protection. Soil water potential is measured as potential energy per unit quantity of water under isothermal conditions, its unit is bar (1 bar = 100kPa). In the soil, water potential is a major factor in determining the direction and speed of water flow, which is the only index of the effectiveness of soil moisture to plants. The water potential of different soils can be compared with each other directly. Accurate determination of soil water potential has very important significance for the research on the flow of soil water, drought resistance of plants, automatic control of water-saving irrigation, soil moisture monitoring, etc. QT-EQ15 Soil water potential meter Principle EQ15 equilibrium tensiometer consists of two parts: equilibrium sensor and moisture content sensor. The equilibrium sensor is made of a special material which owns two characteristics: stable relationship between water content and water potential, high water permeability. Good permeability can ensure water potential changes simultaneously with soil water content. Moisture content sensor measure the water content of equilibrium sensor all the time. Because the relationship between water content and water potential is known, soil water potential can be calculated based on soil water content. Moisture content sensor is fixed in the equilibrium sensor, thus the changes of ambient environment (Soil density, gravels, root systems, etc.) around the probe have no effect on the measurement results. Comparison with traditional soil water potential meter The current soil water potential meters on the market and their measuring principles have several shortcomings in some aspects, such as measurement accuracy, measurement range and stability in measurement. Apparently those soil water potential meters cannot completely meet usersâ?? requirements. The traditional tensiometer usually has a small measurement range (-0.8~0bar), and it can be used only in moist soil and damaged easily; Psychrometer can be heavily affected by the temperature change and its measurement accuracy is low and not suitable for outdoor use. Gypsum blocks has low measurement precision, low stability, and can get significantly affected by soil pH Equilibrium tensionmeter has irreplaceable advantages Wide measurement range, Including the full spectrum of water potential for plant survival High precision, measurement error is less than 5k Pa Easy to use, no need of any maintenance and repair, completely suitable for long-term outdoor use Measurement accuracy is not affected by soil properties (except alkaline soils) Multiple probe connections to the data logger
Product description: QT-tq0401 pr2 probe installation tool kit can apply to the installation of pr2 soil moisture profile probe., features, pilot auger is easy to use, stainless steel stabilization plate, stainless steel pilot auger and finish auger, specifications, no., name, description, quantity, 1, hitting handle, high quality carbon structural steel; length 460 mm; striking head; threaded connections; work with extension rod or energy-absorbing hammer, 1, 2, energy-absorbing hammer, weight 8lb; high-quality carbon steel; containing steel balls, nylon hammer, rubber handle; hammerhead diameter: 70mm, 1, 3, stabilization plate, sus304 stainless steel; maximum fixed area: 620 mm * 620 mm, 1, 4, pilot auger, sus304 stainless steel; length: 1285mm; sampling length: 500mm; sampling aperture diameter: 27mm, 1, 5, finish auger, aluminum connecting rods; total length1240 mm; special steel blade; blade length 200 mm, 1, 6, ground stakes, sus304 stainless steel; length 0.4 m, 4, 7, centring bush, pa66; inner diameter 27mm / 28mm, 2, 8, mist sprayer, plastic; volume 500ml, 1, origin: china
