What is "cricketsonde"

A Cricketsonde (Cold Rocket Instrument Carrying Kit sonde) was a CO propelled, low-altitude meteorological rocket designed in the early 1960s by Texaco Inc. and the Friez Instrument Division of Bendix Corporation. It was used by various government and academic agencies until at least the late 1960s. The rocket carried what was essentially a radiosonde payload and was capable of reaching over 3000 feet (914 meters), where it then ejected a parachute and sent telemetry about temperature, humidity and barometric pressure during decent. A ground station with a manually tracked antenna received the signal where the data was processed and recorded.