Contemporary Devices Company, Inc.


The following products are availible:

Electronic Canary

The Electronic Canary is a fully integrated gas monitoring system designed for mining and tunneling applications. The system is designed to be versatile and communicates using both Ethernet and wireless (IEEE 802.15) networking protocols. The device includes a transmitter which relays sensor data to an included computer database system. External alarm triggers ensures safety of the inhabitants. Various gas sensors of the Electronic Canary can be conveniently replaced and have an average lifetime of two years.

Sensing capabilities

The present system senses with parts per million sensitivity and monitors following four gases of interest to mining industry:

  • Oxygen (O2)
  • Carbon Monoxide (CO)
  • Hydrogen Sulfide (H2S)
  • Combustible Gas (hydrocarbons)
  • However, other sensors can be added to monitor user defined gases.


    The Electronic Canary operates based on industry standards and outputs data in a universal format, allowing for vast interfacing options. It can be setup and customized to provide real-time gas monitoring data for any application, such as:

  • Mining Industry
  • Transportation Industry
  • Water Industry
  • Environmental Chambers
  • Industrial Process Control
  • Greenhouse Electronic Canary

    With mandatory Greenhouse Gas Emission monitoring becoming a reality in many nations, the Greenhouse Electronic Canary (GEC) has been introduced to implement a cost effective solution for savvy consumers. The GEC aims to be the most comprehensive system for the collection of Greenhouse Gas Emission Data in the market. In addition to low cost, special attention was paid to ensure that the system is easy to maintain and the sensors last a minimum of two years without replacement.

    Benefits Include

  • Conforms to guidelines developed by California Air Resources Board (CARB) for mandatory Greenhouse Gas (GHG) emissions reporting.
  • Future US reporting compliance as defined by proposed rule (EPA-HQ-OAR-2008-0508) signed by the Administrator of the United States Environmental Protection Agency (EPA) on March 10th, 2009.
  • Measures the quantity of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), sulfur hexafluoride (SF6), and other fluorinated gases in ambient air.
  • Expandable and customizable system offers tailor made solution for users both small and large.
  • Both wireless (IEEE 802.15.4) and USB 2.0 based communication compatibility provide easy integration into existing communication infrastructure.
  • Features

  • Selectively varies from gas to gas being detected and data can be supplied for gases of interest to users.
  • Sensitivity measures low concentrations (ppm range) of most of the green house gases present in ambient air.
  • High stability (low drift) makes calibration only necessary 1-2 times a year.
  • User-friendly procedures for calibrating the monitor, presenting and analyzing measurement data via the PC user interface.
  • Accurate – compensates for temperature fluctuations, water-vapor interference and interference from other known gases.
  • Wireless and USB 2.0 data communication system ensures easy transfer of data from the measurement site to database.
  • Lightweight, compact design (120-78-27mm), and low power consumption considerations expand the utility of the system from the factory to cars, aircraft, spacecraft, and beyond.
  • HUMSense, Self Calibrating Humidity Sensor for Harsh Environments

    The HUM-250A is a robust electrochemical humidity sensor designed specifically for use in harsh environments. Operating on the principles of electrolysis of water, the HUM-250A is developed to be extremely sensitive to small humidity changes. Features Include:

  • Handles extreme environments with reliability. Withstands stress caused by marine, acidic, and other environments that will cause many sensors to fail.
  • Highly accurate over entire range of relative humidity.
  • Fast response time, minimal non-linearity and hysteresis.
  • State of the art thin film membrane technology used in proven technologies such as fuel cells, electrolysis, and other electro-chemical devices.
  • Description

    The HUM-250A is ideal for measurement of humidity with a high sensitivity in any gaseous environment. It can be used in manufacturing plants, such as in the textile industry or paper industry, where control of humidity is of prime importance in equipment maintenance. Typical applications include:

  • Manufacturing - Textile Mills, Paper Mills, Electronics and Related Industries.
  • Oil and Gas Refining, Exploration, and Transportation Industries.
  • Facility Control Systems, Home and Business HVAC
  • Weather Stations, Air Quality Management, Environmental Studies
  • Food and Agriculture Production and Storage
  • Marine and Aerospace Industry
  • Mold Detection, Health Care Industry
  • Integrated H2 gas sensor

    Based on the well developed fuel cell technology this robust sensor is highly sensitive (ppm range), selective and rapidly detects even very minute amounts of H2 leaks in harsh environments. A well characterized laboratory version is shown in the photograph on this page. It can be configured and packaged according to customer specifications.

    MiniLab Electropolisher

    The Mini-Lab Electro-polisher is a self-contained electro-polishing unit. The electro-polishing process removes a thin layer of material from a metal surface, leaving behind a smooth and lustrous finish. The advantages are not only visual, as electro-polishing process actually improves the material qualities of the object being electro-polished. Some benefits of electro-polishing include:

  • Improved Corrosion Resistance – Electro-polishing removes the surface contaminants that cause corrosion. In addition, the process reduces the occurrence of the microscopic pits in which rust forms.
  • Improved Surface Finish – Electro-polishing smoothes the surface significantly. A superior finish can improve seals, lower friction, reduce real surface area, allow for easier sanitation, and improve heat and light reflection.
  • Deburring – As a result of the electrochemical processes that occur during electro-polishing, peaks in the material are smoothened. This can be used to eliminate rough edges and small protrusions in the electro-polished piece.
  • Reduced Product Adhesion and Ease of Cleaning – A smoother surface makes the electro-polished material less susceptible to contamination buildup. The electro-polishing process facilitates sterilization and makes cleaning more effective.
  • Appearance – One immediately apparent benefit of electro-polishing is the vibrant lustrous finish the working piece attains after electro-polishing.
  • Applications

    The MiniLab Electro-polisher has wide range of applications in the medical and scientific research industries. It is ideally suited for the polishing of parts too small or fragile for mechanical processes. The compact design allows for easy use and storage as opposed to much larger commercial models. Large sized electro-polishers are commercially available which are mainly used for industrial purposes. However, a miniature unit that can be used in a laboratory or in a clinic is not readily available.