GEMINI Respiration Monitor

The GEMINI Respiration Monitor measures CO2, O2, and respiration rate of spontaneously breathing or ventilated animals. It provides breath-by-breath readings for end-tidal CO2 and O2, and instantaneous respiratory rate (breaths/minute). Adjustable alarms are provided to monitor CO2 and respiratory rate.

Gemini respiratory monitor

This instrument uses the latest sensor technology for accuracy, stability, and fast response. CO2 is measured with a temperature-controlled miniature infrared analyzer cell; O2 is measured with a new paramagnetic sensor cell. Respiratory rate is computed using the normal excursion of the CO2 signal, and is updated on each breath.

Simple set up and operation: The sample inlet tubing is connected to the endotracheal tube as close to the animal as possible. High and low alarms are set using a single knob, and the settings are stored in non-volatile memory so they do not have to be reset the next time the instrument is used. All measurements are displayed on the front panel LCD display, and are available as analog voltages for external recording. In addition, a serial port provides all the measurements in a simple ASCII format for collection by any computer.

Expandable: An open slot is provided for installation of any SYSTEM 1000 instrumentation module. Available modules include a cardiotachometer (Model CT-1000), blood pressure amplifier (Model PM-1000), plethysmographic respiration monitor for very small animals (Model RR-1000), and many other functions. This expandability allows you to configure a complete physiological monitor for use during surgery or extended experiments.

Applications: The GEMINI monitor provides complete information for respiratory status assessment for animals as small as rats. It comes complete with an accessory pack of inlet tubing, connectors, and moisture filters.

One year warranty

Part #



GEMINI Respiratory monitor Measure O2, CO2, and resp rate

10-06000 CT-1000

Cardiotachometer plug-in module Direct connect ECG measurement

10-03000 PM-1000

Transducer amplifier plug-in module Arterial BP measurement

10-04100 DTX-1

Medical-type blood pressure transducer Economical arterial BP transducer

10-04210 TC-GRA

Required adapter cable for TXRR


Rat cage Measurement chamber, approx. 2.5 liter For rats and similar size animals


Filter Miniature in-line hydrophobic sample filter Prevents water from entering analyzer

11-01103 BCI-1128

Nafion sample line, 2’ Membrane tubing dries input sample


Dessicant Bulk Drierite dessicant, 12 1 lb packs

IITC Life Science Inc.
23924 Victory Blvd Woodland Hills, CA 91367
818 710 8843 fax 818 992 5185
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