Kaha Sciences rat telemeters measure and transmit high-fidelity pressure, biopotential (i.e., ECG, EMG, EEG), sympathetic nerve activity (SNA) and tissue oxygen. The telemeters can be powered continuously by the SmartPad using patented wireless inductive power technology. Each implant contains a battery backup which is recharged wirelessly in vivo, with a data transmission range up to 5 metres. The rechargeable battery eliminates the need for refurbishment.

All rat telemeters are compatible with the Kaha Sciences SmartPad and Cohousing feature. Cohousing enables two telemeter implanted rats to be housed in the same cage or a single rat (>350g) to be implanted with two telemeters.

General Telemeter Specifications (See individual model below for specific information)

  • TR50B Biopotential Telemeter (ECG, EEG or EMG)

    The TR50B Biopotential telemeter is suitable for use in rats >175 g. The TR50B measures the biopotential difference between the two electrode leads. The leads can be placed to measure a single biopotential signal such as ECG, EEG or EMG. The TR50B is compatible with the TR181 SmartPad (or TR180 SmartPad) and the TR190 Configurator.Made of biocompatible silicone, the telemeter weighs ~12 g (7 cm3) and includes 25 cm long biopotential leads. When used on the SmartPad, 24/7 data transmission is available. The battery in the TR50B allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

    Product Specifications

  • TR50BB Dual Biopotential Telemeter (ECG, EEG and/or EMG)"

    The TR50BB Dual Biopotential telemeter is suitable for use in rats >175 g. The TR50BB measures the biopotential difference between each pair of electrode leads. The leads can be used to measure two biopotential signals such as ECG, EMG and/or EEG. The TR50BB is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and the TR190 Configurator.Made of biocompatible silicone, the telemeter weighs ~12 g (7 cm3) and includes 25 cm long biopotential leads. When used on the SmartPad, 24/7 data transmission is available. The battery in the TR50BB allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

  • TRM54P Pressure Telemeter

    The TRM54P Kaha Sciences Rat Pressure telemeter is suitable for use in rats >175 g. The TRM54P measures high-fidelity pressure using a solid-state Millar sensor. Pressure is measured directly at the tip of the 9cm catheter and the telemeter can be used to measure arterial, venous, ventricular or intracranial pressure (25 cm catheter required). The TRM54P is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and TR190 Configurator.Made of biocompatible silicone, the telemeter weighs approximately 12 g and includes a Millar solid state pressure sensor (2Fr in diameter, 9 cm long (15 cm & 25 cm options available)). When used on the SmartPad, 24/7 data transmission is available. The battery in the TRM54P allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

  • TRM54PB Pressure Biopotential Telemeter

    The TRM54PB Kaha Sciences Rat Pressure Biopotential telemeter is suitable for use in rats >175 g. The TRM54PB combines measurement of high-fidelity pressure using a solid-state Millar sensor with a single biopotential signal (e.g. ECG, EEG or EMG). Pressure is measured directly at the tip of the pressure catheter (2Fr in diameter, 9 cm long (15 cm & 25 cm options available)) and the telemeter can be used to measure arterial, venous, ventricular or intracranial pressure (25 cm catheter required). The biopotential signal measures the potential difference between the pair of 25 cm coiled electrode leads. The TRM54PB is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and TR190 Configurator.When used on the SmartPad, 24/7 data transmission is available. The battery in the TRM54PB allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

  • TRM54PP Dual Pressure Telemeter

    The TRM54PP Kaha Sciences Rat Dual Pressure telemeter is suitable for use in rats >175 g. The TRM54PP measures two high-fidelity pressures using solid-state Millar sensors. Pressure is measured directly at the tip of each pressure catheter (2Fr in diameter, 9 cm long (15 cm & 25 cm options available)) and the telemeter can be used to measure arterial, venous, ventricular and/or intracranial pressures (25 cm catheter option). The TRM54PP is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and TR190 Configurator.When used on the SmartPad, 24/7 data transmission is available. The battery in the TRM54PP allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

  • TRM56SP SNA and Pressure Telemeter

    The TRM56SP Kaha Sciences Rat Sympathetic Nerve Activity (SNA) and Pressure Telemeter is suitable for use in rats >175 g. It is the only commercially available telemetry device that allows concurrent measurement of SNA and pressure. The TRM56SP is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and TR190 Configurator.The telemeter is made of biocompatible silicone, weighs approximately 12 g with a Millar solid state pressure sensor (2Fr in diameter, 9 cm long (15 cm & 25 cm options available)) and multi-stranded SNA lead wires (25 cm long). The telemeter samples the pressure and SNA signals at 2 kHz with an SNA input range of ±60 µV. When used on the SmartPad, 24/7 data transmission is available. The battery in the TRM56SP allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

  • TR57Y Tissue Oxygen Telemeter

    The TR57Y Kaha Sciences Rat Tissue Oxygen Telemeter is an implantable potentiostat with a carbon paste electrode specifically configured for measuring tissue (e.g. brain, kidney) oxygen concentration in freely moving rats >175 g. The telemeter can be easily cleaned and sterilized for reuse after attachment of new electrodes. The TR57Y is compatible for use with the TR181 SmartPad (or TR180 SmartPad) and TR190 Configurator.The Kaha Sciences Cohousing feature allows tissue oxygen measurement with other signals by placing two telemeters in one rat. The telemeter is made of biocompatible silicone, weighs approximately 12 g. When used on the SmartPad, 24/7 data transmission is available. The battery in the TR57Y allows the telemeter to continue transmitting data for 4-6 hours if away from the SmartPad recharging field.

    The Telemeter has three lead wires (28 cm, coiled stainless steel) to which electrodes are attached:
    • Working lead - carbon paste electrode (200 μm)
    • Auxiliary lead - silver/platinum electrode
    • Reference lead - silver/platinum electrode
    Applications
    • Memory, learning research (Hippocampus)
    • Metabolism research (Cortex)
    • Long-term trends in sleep/wake research, EEG monitoring
    • Long-term behavioral testing in mazes for anxiety, memory, fear etc (pharmacological tests/drug therapy)
    • Social interaction between animals
    • Ischemia research