At APT we understand there are inherent switching costs when you decide to purchase a new brand of testing equipment. That is why we do our best to take the hassle out of trying out our instruments. We are so confident that our AC power sources will meet or exceed your requirements that we offer the industry’s only 45-day return policy. Should you be unsatisfied with your purchase in any way, we offer a complete and unconditional return of you AC power source. Simply return it within 45-days of shipment and receive a full refund, exchange, or credit – no questions asked. APT parts and accessories are excluded from this policy.