950 N. Hague Ave; Columbus, OH 43204 U.S.A.
Phone: [614] 276.0861 Toll Free: [800] 669.5011
Fax: [614] 276.0529 Email: sales@colinst.com


Historically, product design and development at Columbus Instruments has been client driven. We've grown from 5 to 70 products over 30 years by listening to the needs of researchers. Ideas, both developed within and external to the company, provide continued improvement for existing products and new avenues to explore. Countless specialty adaptations and "one-off" custom designs provide a continuous flow of novel products. This page contains an up to date accounting of our ongoing effort to offer new and improved products.
Sleep Detection

   New feature to the popular Oxymax-CLAMS system; the photocell activity monitor can now be employed in the detection of sleeping bouts.The criteria used is the length of time with no (or minimum) movement. The user has control over the length of the epoch, and amount of movement that qualifies the epoch as asleep or awake.

Home-cage Mouse Wheel

   The home-cage running wheel monitor is designed to fit universally with most home-cages and rack systems. The wheel itself clips to the wire lid inside the cage an contains an embedded magnetic indicator. The rotation detector attaches to the lip of the plactic dome outside of the cage and the hall-effect detector counts the number of rotations of the wheel. Detectors plug into a common interface that connects to PC via RS232. Software included.

Oxymax Room Sensor

   This is a device that monitors room changes during an experiment. Primarily designed to accompany the Oxymax - CLAMS systems, the Room Monitor measures ambient temperature, barometric pressure, relative humidity , and a room illumination detector. Audible alarms can be set for the humidity sensors to prompt the user to change dessicant columns or to warn in case of drier failure.
The Oxymax Room Monitor can be interfaced to the Oxymax - CLAMS through the CI-Bus. For non-Oxymax applications, the room monitor can interface to PC by way of RS232.

Pig Calorimetery Chamber

   Pig chamber for use with our Oxymax open circuit calorimeter. This chamber provides a an air-tight enclosure for pigs weighing up to 300 lbs (136 Kg). The heavy mesh floor allows waste to pass through into a collection basin beneath. The viewing windows all around are made from bullet proof 1/2 inch (1.27 cm) thick polycarbonate; for extra durability. For size scale, Max here is a 160 lb (72 Kg) rotweiler, one of our daily visitors here at CI.

Rat Running Wheel

   Running wheel capability for Oxymax/CLAMS is now available. Wheels are available for normal and large rats. The wheel is affixed to the chamber in a manner that maintains an air-tight environment. Wheel rotations are scored along with metabolic data.

Canine Treadmill

   Columbus Instruments is presently completing a semi-custom treadmill for canines. This treadmill provides a running surface of 24" x 82" [61cm x 208cm] and provides a speed range of 0-13 MPH [21 Km/Hr]. Inclination is adjustable from 0 to 25 degrees [45% grade]. The finished product will have side walls and provide for an animal harness.

Multiple Feeders for CLAMS

   This is a semi-custom configuration of Columbus Instruments Comprehensive Lab Animal Monitoring System (CLAMS). The system supports multiple feeders that allow for presentation of two diets per animal. Feeding activity is monitored with time, duration and mass recorded for each diet. Mass is recorded with 0.01g resolution.

Feeder Access for CLAMS

   Shown at left is a semi-custom feeder that includes a movable guard (tinted blue) that prevents animal access to food. The guard takes the form of a ring that surrounds the feeding cup and is actuated by an arm that is set in motion by a lever external to the chamber. The lever may be manually or automatically actuated. Automated actuation is by CLAMS software in accordance with a user prescribed protocol. Access to food can be on a simple time schedule. An alternate mode of operation allows prevention of access after a defined mass of food has been consumed.

High Speed Oxymax Sensors

    Oxymax is now offered with a High Speed sensing option that utilizes specially designed gas sensors and gas dryer to shorten sample interval times. Data may be collected up to 8 times faster than in systems equipped with standard sensors. This option includes a new Zirconia Oxygen Sensor and low-sample-volume CO2 sensor along with a low-volume Hydroscopic Tube Dryer for water vapor removal. The combination reduces sample time to 45 seconds per chamber in many applications.

Large Subject Calorimeter

    The Oxymax Indirect Calorimeter, well known for its application for mice and rats, has also found equal success on larger subjects. Recently, we installed a system for goats at Botswana College. Click here to view a short video of the subject and application. You can also learn more about the system on the Oxymax XL web page.

Treadmill for Gait Analysis

   Monitoring gait analysis by video is assisted with an adaptation of Columbus Instruments Modular Treadmill. A mirror placed beneath a specially fabricated clear tread provides an exceptionally clear view of animal pads. Click here to obtain a copy [PDF] of the product brochure.

Calorimetry Chamber for Primates

   Here's another Scott creation: primate chamber for use with our Oxymax open circuit calorimeter. This chamber provides a an air-tight tether and resting perch as well as sub-floor for urine/feces collection.