Electronic sensors are a necessary component for upgrading your starting stash in Modern Warfare 4's DMZ mode. This upgrade is vital for expanding inventory space, which quickly becomes limited after a few matches. Unlike rigid synthetics, another required material, electronic sensors often require targeted searching to acquire in sufficient quantities.
The most effective locations for finding electronic sensors include:
Buildings, particularly apartments and apartment blocks, are prime spots. You'll frequently find sensors as loose items or within bags inside these structures. Computers are another excellent source; interacting with any computer you find may yield sensors. While residential buildings are scattered across the map, Hanrin Village in the north has proven to be particularly fruitful. A single sweep south along the main road in this area has provided enough sensors to meet the upgrade requirement.
Apartment buildings are advantageous as they often contain both electronic sensors and rigid synthetics, allowing players to gather both materials simultaneously. Players are advised to search thoroughly within buildings and computers, and it is recommended to equip a blue, medium backpack to maximize the collection of found items. This will help ensure progress toward the stash upgrade, even if a successful exfiltration is not achieved.