easyMATRIX3 for telemetry & analog inputs

easyMATRIX3 simultaneously measures physiological signals from up to 16 analog telemetry receivers and up to 8 analog sensors in real-time using IOX2 software.



Adjustment free






Adjustment free

The high resolution (24 bit, 0.1ppm) and wide input range (±10 volts) of the analog inputs preclude the need for separate gain and offset adjustments. No more need for time-consuming manual adjustments. The usbAMP preamplifiers are optimized based upon the types of inputs selected.


A single acquisition computer running IOX2 software can record simultaneously up to 16 implanted telemetry signals from emka easyTEL (or DSI PhysioTel®) implants, and 8 analog inputs on each easyMATRIX3 in the IOX configuration. Up to four easyMATRIX3 devices can connect to a single computer running IOX2 software, for a total of up to 96 channels.

The easyMATRIX3 can support a wide variety of configurations for simultaneous physiological measurements, including:

  • analog transmitters surgically implanted, and wirelessly transmitting to a receiver.
  • non-invasive electrodes (ECG, EEG, EMG), directly connected to easyMATRIX3.
  • strain gauge transducers, powered and amplified by easyMATRIX3.
  • most common pre-amplified analog signals.

A perfect synchronization between telemetry implants and analog signals allows combining, for instance, pleural pressure from implant and respiratory flow from head-out plethysmography for precise resistance & compliance measurement.

Techniques & measurement

Physiological measurements are captured and amplified by a an easyTEL transmitter surgically implanted in single-housed subjects, and wirelessly transmitted to an analog receiver under the cage.

The easyMATRIX3 device, placed between the receiver and the computer, digitizes and encodes the signals that are sent to the acquisition computer running IOX2 software via Ethernet. No separate Analog to Digital acquisition card is required.

Analog signal acquisition

The easyMATRIX3 device is used to interface between the analog sensor and the acquisition computer. It acts as a signal conditioner and analog-to-digital converter which transfers data to the computer via an Ethernet connection. The high resolution and wide input range accommodate signals ranging from several microvolts to up to ±10 volts.

Biopotential electrodes 

Biopotential electrodes (e.g. ECG, EEG, EMG) can be connected directly to the easyMATRIX3 with no pre-amplification necessary.

 Strain gauge-based transducers

Strain gauge-based transducers (e.g., contractile force, blood pressure) can be connected to the easyMATRIX3. The easyMATRIX3 provides precision power for Wheatstone Bridge-based sensors, such as strain gauge-based transducers.

Basic configuration

A typical setup includes:

  • computer, running IOX2 data acquisition software
  • easyMATRIX3
  • Analog transducers (optional)
  • Analog telemetry implants:
  • Telemetry receivers: One to 4 receivers can be dedicated to a single implant. For rodents, only one receiver is usually placed under the cage, while for large animals, several receivers can be required, depending on the system configuration.

easyMATRIX3 simply connects to your existing telemetry receivers and to your computer through Ethernet. Therefore, an add-on A/D acquisition card is not required.

The easyMATRIX3 contains its own ambient pressure transducer so there is no need for an external ambient pressure reference monitor. Fully calibrated data from DSI implants can be acquired with IOX2 software, eliminating the need for obsolete DSI OpenART software.





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