A document scanner uses charge coupled device sensors. The document scanner is capable of reading a maximum of two lines of information. A document scanner has the ability to acquire images in a transmission mode. Document scanner is a popular, low-cost device gaining widespread acceptance for image acquisition in electrophoresis. A document scanner acts much like a photocopier in that it creates an image of a flat surface, such as a photograph or a sheet of paper.

Door Frame Metal Detector is designed to detect both ferrous and non-ferrous metals, which is passed through the aperture vicinity in any conceivable manner. This metal detector is highly sensitive and is used in the jewellery manufacturing units & other various manufacturing units to protect the various unavoidable pilfering activities. This metal detector is ideal for customs, factories and all high security sites. This metal detector has a phase sensitive detection circuits, which allows the user to enhance the sensitivity for certain group of metals. They feature maximum target discrimination, automatic balance, low power consumption and instant recovery on detection.

The double check detector assembly consists of two independently operating, spring loaded check valves, OSY resilient wedge gate valves, and bypass assembly. The bypass assembly consists of a meter, a double check including shutoff valves and required test cocks. Each cam-check can be internally loaded and provide a positive drip tight closure against reverse flow. Cam-check includes a stainless steel cam arm and spring, rubber faced disc and a replaceable seat. The body of this assembly made of stainless steel material.

Double check valve is a backflow prevention instrument designed to protect water supplies from contamination. It has two check valves assembled in series usually with a ball valve or gate valve installed at each end for isolation and testing. Often, test cocks (very small ball valves) are in place to attach test equipment for evaluating whether the double check assembly is still functional. It is suitable for prevention of backpressure and backsiphonage. It is commonly used on lawn irrigation, fire sprinkler, and combi-boiler systems

The double check valve assembly consists of two independently operated spring loaded cam-check valves, required test cocks, and optional inlet and outlet resilient wedge shut-off valves. Each cam check is internally loaded and provides a positive drip tight closure against the reverse flow of liquid caused by backsiphonage or backpressure. The modular cam-check includes a stainless steel spring and cam-arm, rubber faced disc and a replaceable seat.

Drill String Radars provides many benefits for improved mining and oil extraction, which includes reduced cost and more efficient mining by providing more accurate information about geologic structures. It increases fuel production rates and enhanced recovery of oil and gas. It enhances safety for miners and minimal surface disturbance, which preserves the environment and prevents dangerous fractured roof rock. It is highly adaptable to many sizes and grades of drill pipe. It is used in conjunction with the industry's existing down whole sensors. It does not require re-engineering or modification of existing equipment. It has specialized radar developed for use on a drill string (vertical drill pipe, horizontal directional drill pipe, or coiled tubing drilling systems) to provide sensitivity to nearby structures and geologic layering. It maximizes the horizontal distance potential by minimizing the number of well bores required to access a given area.

Dry Chemical Extinguishers are filled with a fine yellow powder. Nitrogen is used to pressurize the extinguishers. This extinguisher put out fire by coating the fuel with a thin layer of dust, separating the fuel from the oxygen in the air. The powder also works to interrupt the chemical reaction of fire. This can be found in laboratories, mechanical rooms, break rooms, chemical storage areas, offices and university vehicles.

Dry chemical fire extinguishing agent is made up of pulverized sodium bicarbonate, which is completely silica-impregnated to make it free flowing, lump-free, and resistant to moisture absorption. This agent is effective in extinguishing initial combustion of oil tanks, in the rapid containment of flame expansion, and in extinguishing fires quickly. It is widely used in oilfields, oil depots, petroleum refineries, large chemical plants, chemical storerooms, ships, airport, mines, and factories.

Dry Chemical Stored Pressure Extinguishers are coupled with rugged, dependable steel cylinders and stored pressure design. It contains a specially fluidized and siliconized mono ammonium phosphate chemical. It chemically insulates fires by melting at approximately 350 degrees F and coats the surface to which it is applied.

Dry pipe valve is a dry pipe sprinkler system water-supply control valve that makes possible the installation of sprinkler systems in buildings subject to freezing temperatures. It is designed so that air pressure in the piping system can hold back water pressure at the valve until such time as a sprinkler is activated. Upon such activation the air pressure in the system can decay sufficiently to cause automatic operation of the valve and admission of water into the system. The valve has a 5:1 pressure differential ratio.

Dry Powder Extinguisher is dealing with electrical hazards, flammable liquids and gases. This can also be used in vehicle fires. It has squeeze grip operation, protective plastic base, corrosion resistant finish and used in multi purpose application.

Dual Band Cellular Jammer is intended for use by military and law enforcement to ensure security of information by preventing illicit transmission of audio, video & data and prevent remote activation of concealed surveillance equipment. They feature push button with LED indications power "OFF″, infrared remote control, nominal 30W RF output, and frequency coverage from 800 - 2200MHz and 0°C to 50°C operating temperature.

Electrical Stimulators is interferential, premoditated, high volt waveforms, and lightweight for use. It has clear LCD display. Waterproof membrane overlays for easy selection of waveform and parameter control. It has ability to store start-up parameters. It combines all the advanced technology of the Intelect Legend Stim with the Intelect Legend Ultrasound. It provides one of the cleanest views of muscle adaptation to increased use. This model is used to study skeletal muscle adaptation since it induces a repeatable, quantifiable amount of exercise. It is used for suprafusion systems and stand-alone use. It is fully programmable, and offer a choice of either mono or biphasic current output. Each channel is individually regulated and adjustable. Front screen displays bar graph for output of all channels at once, or digital scope of any single channel. It consists of a pocket-sized main unit, a foot switch and two adhesive surface electrodes connected with wires. The electrical stimulation might cause a slight tingling sensation.