Testo is a world leader in the design, development and manufacture of portable instrumentation for combustion analysis, thermal imaging, visual inspection, IAQ audits, temperature and humidity monitoring and much more. Backed by 50 years of measuring engineering experience our mission is to provide the best quality, service and value in the industry. The Sparta, NJ headquarters incorporates an inclusive sales department and marketing departments, as well as a full calibration lab, comprehensive service center, inventory and shipping departments. Testo consists of 25 subsidiaries and over 54 agents around the world. The United States subsidiary was founded in 1981. Testo thermal imagers are ideal for preventive and predictive maintenance, electrical inspection and home energy audits. They offer excellent image quality, ensuring reliable diagnoses, even for the smallest temperature differences. Testo’s brand has a reputation for exceptionally designed and engineered products that are lightweight, rugged and dependable.