Virtual Electronics Company
1105/1, Salempur Industrial Area
Roorkee, Uttarakhand 247667
This system offers convenient and flexible tools for measuring and analyzing incident and transmitted Photo synthetically Active Radiation (PAR) in Crop and Forest canopies. It provides vital information about the penetration of PAR into crops and forest , and is essential in work such as comparative crop studies, for separating out the effects of cultivars and treatment. It is particularly well suited to low regular canopies (as found in many agricultural crops). It can be used in most light conditions. The sensor probe has an array of 10 PAR sensors embedded in a 1m long probe, and is connected handheld Data logger. One PAR Sensor is also connected with data logger for reference incoming radiation. When a reading is taken, all sensors are scanned and the measurements transmitted to the data logger. The average light level along the probe is calculated. further you can download data from data logger to a computer (USB Port) with the help of "Virtualware" (PC Interface Software).
The system consists of a weatherproof enclosure which contains the data logger and power supply, and comes complete with a solar panel, tripod stand and Leaf Wetness, Air Temperature & Humidity sensors (One each). For the most accurate disease prediction the leaf wetness sensor, designed to mimic the surface area of a leaf, use electrical resistance to measure the level of surface moisture on foliage, whether caused by rainfall, dew, or spray. The leaf wetness sensor enables the data logger to detect the presence of surface moisture on foliage and calculate the duration of wetness. When moisture is present, the sensor detects an electrical resistance change between the gold-plated elements of the grid. This is displayed and record by the data logger as a value between 0 (dry) and 15 (wet). moisture on foliage and calculate the duration of wetness. When moisture is present, the sensor detects an electrical resistance change between the gold-plated elements of the grid
The Portable Laser Area Meter uses advanced laser technology to provide researchers with a precise and convenient method of measuring leaf area. The high-resolution laser scanner, data logger, and display are enclosed in a hand-held self-contained unit. Ideal for field use, the scanner head and palette format base weigh approximately 1.5Kg. Researchers can perform non-destructive measurements on the leaves of living plants by simply sliding the scanner over the leaf, enabling collection of data from the same plant, or even the same leaf, throughout its life span. Precise leaf area measurement of tender leaves is possible by using a transparent sheath for the leaf’s protection
Chlorophyll Concentration Meter is a hand-held, battery operated instrument designed for the rapid, nondestructive, determination of chlorophyll content in intact leaf samples. Chlorophyll content is a direct indication of plant health and condition. Obtaining chlorophyll content via non-destructive analysis gives researchers, agronomists and growers valuable diagnostic information. This data can then be applied to a multitude of crop production and research initiatives such as: nutrient and irrigation management, pest control, environmental stress evaluation and crop breeding
This system allows monitoring of erosion and deposition automatically. Conventional, manual methods like erosion pins and resurvey techniques can only reveal net change to a site since the previous field visit. They cannot therefore reveal the ‘true’ temporal distribution of erosion and depositional activity. The high-resolution information from this system, however, is incredibly valuable in process and management studies for erosion. This system consists of a weatherproof enclosure, which contains the data logger and power supply, and comes complete with a solar panel, tripod stand and sensor.
The ‘Virtual’ make Digital Soil Moisture Tension Meter, used with the Soil Moisture (watermark) Sensors and Soil Temperature Sensor (Optional), make up a valuable system to monitor the soil moisture, Tension & temperature (Optional) available in your soil. You can use as many sensors as you like at representative sites. Then, using the Digital Soil Moisture Meter you can read each sensor individually as frequently as necessary. The importance of water to plant growth is well known. Also, effective irrigation should be properly controlled in quantity and timing.
The automatic soil moisture suction & Soil Temperature Recorder is a complete system for monitoring, logging and graphing 7 point Soil moisture & 1 point Soil Temperature readings. Automatically reads the sensors, 12v battery powered monitor, Battery Charging Through solar panels, Reading frequency from every minute to every day and adjustable to suit you, 8 sensor capacity, includes temperature probe, In-field display of current reading, Download the history to a Computer through pockable data shuttle, Monitor current values. Data is saved in Excel format and can be exported.
The double ring Infilltrometer is a simple instrument which is used to determine the infiltration rate of water into the soil. The infiltration rate is determinate as the amount of water per surface area and time unit, which penetrates the soils. This rate can be calculated on the basis of the measurements and the DARCY's law. Several measurements can be executed simultaneously, yielding a very reliable and accurate mean result. As vertically infiltrated water runs away to the side. The outer ring of the Infiltrometer serves as a separation. The measurement exclusively takes place in the inner ring through which the water runs virtually vertically. The instrument consists of two rings, driving plate, for inner and outer rings. The two rings are driven into the ground and partially filled with water. The double ring design helps prevent divergent flow in layered soils. The outer ring acts as a barrier to encourage only vertical flow from the inner ring. The standard set of the double ring Infiltrometer consist of 2 steel rings with different diameters, a hammer, floats, a stainless steel hammering cross and a stopwatch.
A sensitive electrode measures pH values from 3.5 to 8, soil moisture from 0 to 100%. Requires no chemical, distilled water, or outside electric power source. Numerous readings can be easily taken over large area. 6-1/2"L. Leather-like case with belt loop and full instructions included. pH Accuracy: ±0.2. Moisture accuracy: ±10%
This mirror sighting height gauge is great for teaching students how to quickly determine tree heights! Easy to follow instructions are embossed onto its rugged plastic shell, detailing the gauge’s short four step measuring method and height-finding formulas
These electronic clinometers provide accurate height and angle measurements quickly and easily. Height measurements can be taken from any distance or position because no fixed distance to the object being measured is required. Function selection is simple. Use a single key to choose from these functions: DIST (distance setup and height measuring), HGT (height measuring), and DEG (angle measuring). Results are displayed once measurement is complete, and no manual counting is required. Lightweight yet rugged, the clinometers can withstand the toughest use in the field. These highly efficient instruments offer extremely low battery consumption and feature a low battery indicator.
Accurate, one person measurement of tree canopies. Measure forest overstory density from unobstructed sighting positions. The instrument uses a spherical-shaped reflector mirror engraved with a cross-shaped grid of 24 quarter inch squares. To take readings, hold the instrument level, 12" to 18" in front of body and at elbow height. Assume four equi-spaced dots in each square of the grid and systematically count the dots equivalent to quarter-square openings. Multiply the total count by 1.04 to obtain percent of overhead area not occupied by canopy. The difference between this and 100 is an estimation of overstory density in percent. Units are housed in a 3" x 3" x 1" thick walnut case with operating instructions permanently affixed to the lid. A leveling bubble is also included for accurate positioning during estimations
The altimeter displays the current altitude in feet or meters, the difference between current and reference altitude, and graphic altitude history for the past 12 hours. Retains memory of maximum / minimum height reached and of the cumulative vertical ascent/ descent. User-programmable alarm. The barometer displays current barometric pressure in mb/hPa or in. Hg and graphical history for the past 12 hours. A storm alarm alerts user when a storm condition is approaching. °C or °F selectable. Clock features a user-selectable 12- or 24-hour format, month, date, alarm and a stopwatch on an easy-to-read LCD display. Includes wall mount and lanyard. Altimeter Specifications: Range: -1,640´ to +22,965´ (-500m to +7,000m). Resolution: 3´ from -1,640´ to +3,280´/6´ from +3,284´ to +22,965´ (1m from -500m to +1,000m/2m from +1,001m to +7,000m). Accuracy: ±3%. Alarm range: -1,640´ to 22,965´ (-500m to 7,000m). Barometer Specifications: Range: 400 mb/hPa to 1,070 mb/hPa (11.8 in. Hg. to 31.57 in. Hg.). Resolution: 1 mb/hPa (0.03 in. Hg.). Accuracy: ±8 mb (±.236 in. Hg.). Temperature range: -20°C to +70°C (-4°F to 158°F). Temperature resolution: 0.1°C (0.2°F). Temperature accuracy: ±1%. Power: 3V CR-2032 lithium batteries (included) with automatic low battery indicator.
The "circle over circle" alignment system of this compass assures an accurate reading every time! In addition, a round bubble level allows for more accurate strike and dip measurements. The compass features three inclinometer systems: card inclinometer (±5° accuracy with 5° resolution), hinge inclinometer (±5° accuracy with 5° resolution), and graduated dial inclinometer (±1° accuracy with 1° resolution). The revolutionary body design is lightweight and rugged. The compass also features adjustable declination; professional field reference cards; magnified read out; a map magnifier; and USGS 1:24,000 feet, mile, UTM, and meter scales. Lanyard included. Accuracy: ±1°. Resolution: 1°. Dimensions: 4.1" x 2.5" x 1".
This transit’s single NdFeB magnet resists demagnetization better than other types of magnets for increased reliability. The induction damped needle provides quick, accurate readings while the sapphire jewel bearing allows for smooth needle movement. Two long-level bubbles on the aluminum housing permit no-guess leveling from the sides or the bottom. O-rings make the transit waterproof. Other features include adjustable needle locking mechanism with two positions, hinge inclinometer with 2° increments for 1° readable dip measurements, and “Buck Horn” style sights for increased accuracy when sighting azimuth or vertical angles. Leather case included. Lifetime warranty from Brunton. Horizontal angles: 0-360° (Azimuth) or 0-90-0° (Quadrant), 1° graduations. Vertical angles: ±90°, vernier reading to 10 minutes, ±100% grade, 5% divisions. Declination adjustment.
This mirror-sighting compass has graduations every 2°, a clinometer, adjustable declination, and luminous points. The Azimuth model features 1:24,000 and 1:50,000 scales, and the Quadrant model features 1:24,000, 1:25,000, and 1:50,000 scales. Lanyard and declination tool included. 3.9" x 2.5" x .75".
Forged, one-piece solid steel. Fully polished finish. Nylon-vinyl grip. Head length 7-1/8". Overall length 11-1/4".
Estwing Chisel-Edge Rock Picks:
Forged, one-piece solid steel. Nylon-vinyl grip, Estwing Chisel-Edge Rock Pick, 6", 12 oz. Head
Estwing Pointed-Tip Rock Picks:
Forged, one-piece solid steel. Nylon-vinyl grip, Estwing Pointed-Tip Rock Pick, 6", 14 oz. Head
Estwing Crack Hammers:
Forged, one-piece solid steel. Nylon-vinyl grip, 2 lb. Head; 11" handle
It is used for measuring temperature of inner layer of soil. Provided with brass body with cone having natural brass finish. Available with cone size of 75 mm, 150 mm and 300 mm. Fitted with yellow back mercury / Alcohal filled thermometer Temp. Range: -10 to 50°C. Thermometer fitted with wooden case..
The Global Positioning System (GPS) is a satellite-based navigation system. Different Models and Makes are available with us.
"Virtual" is a registered Trademark of Virtual Electronics Company, Roorkee (India).
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Virtual Electronics Company
1105/1, Salempur Industrial Area
Roorkee, Uttarakhand 247667