Asia-Pacific Leak Detection Market, By Type (Upstream, Midstream and Downstream), Product Type (Handheld Gas Detectors, UAV-Based Detectors, Manned Aircraft Detectors and Vehicle-Based Detectors), Technology (Acoustic / Ultrasound, Fiber Optic, Pressure-Flow Deviation Methods, Extended Real-Time Transient Model (E-RTTM), Thermal Imaging, Mass/Volume Balance, Vapor Sensing, Laser Absorption and...