The U.S. Geological Survey (USGS) awarded a firm-fixed price purchase order contract to Zonge International, Inc., a small disadvantaged business, to provide 8 magnetotelluric (MT) data loggers. The $252,960.00 contract has an ultimate completion date of January 31, 2025. The data loggers must meet specific technical requirements including a minimum of 5 input channels, 32-bit analog-to-digital converters, variable sampling rates up to 2 kHz, embedded GPS time synchronization, and at least 1 GB of removable data storage per channel. Delivery is required in Denver, CO. This contract was awarded under a total small business set-aside, NAICS code 334519 - Other Measuring and Controlling Device Manufacturing, and the PSC category 6645-P for Time Measuring Instruments.