HALT chambers, also referred to as HALT/HASS chambers, are test chambers designed for Accelerated Stress Testing (AST), specifically Highly Accelerated Life Tests (HALT) and Highly Accelerated Stress Screen (HASS) tests. A HALT chamber is used to find product defects as a part of accelerated product reliability testing. HALT/HASS chambers from leading manufacturers like Espec reveal product failures in hours or days by strategically applying stresses in controlled increments while the product being tested is monitored for failure.