A disclosed telemetry system comprises an Nth number of telemetry devices and an equal number of standard disposable circular electrode patches. A body of each telemetry device in the system includes a female snap receptor configured to attach to a single male snap post of an electrode patch. A wireless transmitter module is disposed in direct connection with each female snap receptor. Each wireless transmitter module transmits a signal to an electrical ground thereof to a receiver. A wireless receiver module is configured to receive and to process an Nth number of transmitted signals from the Nth number of telemetry devices into an Nth−1 number of signals where the number of signals is greater than zero. An interface on each telemetry device threads the devices in series to a single grounding device based on a connection and a disconnection of the single female snap receptor to the wireless transmitter module.