T.MA( 2943)Testo 440 dP is a multifunctional handheld measuring instrument designed for assessing indoor air quality (IAQ) and air velocity. For measuring air speed, temperature, humidity, CO₂, CO, differential pressure, and light (lux).

الشؤون الصحیة بوزارة الحرس الوطنينُشر 2025-06-16