Holiday Detector

Professional HD-101 Porosity Holiday Detector for non-destructive detection of coating flaws on metal and concrete surfaces. Features 0.6KV-30KV adjustable voltage, 0.05mm-10mm detection range, 12V DC power, and LCD display. Essential for oil & gas pipelines, shipbuilding, and infrastructure corrosion protection with audible/visual alarm systems.

Professional HD-105 high voltage pinhole detector with 0.6-30KV range for testing coating thickness up to 10mm. Features intelligent anti-interference technology, 12+ hour battery life, and precision voltage control. Essential for quality control in chemical, oil, and industrial coating applications with portable field operation.

Professional geomembrane leak detector with 50KV adjustable output voltage for comprehensive waterproofing inspection. Features 4400mAh battery for extended field use, detects leaks in 0.1-35mm thickness range across HDPE, PVC, and polypropylene membranes. Ideal for ponds, dams, and construction sites with peak-ringing alarm and LCD display.

Professional geomembrane leak detection system with 0.6-50kV adjustable high voltage output for identifying damage in 35mm thick HDPE, LDPE, PVC, and polypropylene materials. Features upgraded 4400mAh battery for extended field use, peak-ringing alarm system, and compatibility with various conductive substrates. Ideal for pond liners, dam waterproofing, and construction integrity testing.

Professional spark detector for coating defect identification with 0.05-10mm detection range and 0.2-30KV adjustable voltage. Features digital display, 6W low power consumption, 24-hour continuous operation, and enhanced safety design. Includes standard accessories and optional probes for comprehensive coating inspection applications.

Professional HD-120 holiday detector for precise coating flaw detection in pipelines, tanks, and marine applications. Features digital display, 0.5-35KV adjustable voltage, automatic pinhole counting, and three-proof design. Ideal for oil & gas, shipbuilding, and petrochemical industries with modular construction and comprehensive safety features.

Professional non-destructive testing instrument for detecting coating flaws, pinholes, and thin spots in protective coatings on metal and concrete surfaces. Features 600V-8000V adjustable output voltage, 30μm-1mm detection range, LCD display, and 12V DC power supply. Ideal for oil and gas pipelines, shipbuilding, petrochemical plants, and corrosion prevention applications.

Professional high voltage holiday test equipment for detecting pinholes and defects in anticorrosive coatings. Features intelligent frequency conversion technology, AC/DC dual power, and detection ranges from 0.03mm to 11.3mm coating thickness. Ideal for oil/gas pipelines, shipbuilding, and industrial corrosion inspection with safety features and LCD voltage display.

Professional AC & DC high voltage holiday detector for identifying pinholes and defects in non-conductive coatings. Features intelligent frequency conversion technology, 0.5-36KV detection range, and military-grade connectors. Ideal for oil & gas, pipeline, shipbuilding, and petrochemical industries with 12-16 hour battery operation and comprehensive safety features.

Professional geomembrane leak detection system with 0.6kV-50kV adjustable voltage and 0.1-35mm detection thickness. Features 4400mAh battery for extended field use, LCD touch display, and peak-ringing alarm. Ideal for ponds, dams, and construction waterproofing applications with HDPE, LDPE, and PVC membranes.

Professional high voltage pinhole detector for coating flaw detection on pipelines, tanks, and structural components. Features 0.03-10mm detection range, 0.5-35KV adjustable output, automatic leak counting for 99 points, and digital display. Ideal for oil & gas, shipbuilding, and industrial corrosion protection applications.

Professional portable gas pipeline detector with 0-1000ppm sensitivity range and under 10-second response time. Features imported gas sensor, 8+ hour battery life, and compact 165×155×68mm design. Ideal for natural gas, LPG, and coal gas leak detection with automatic regulation and LCD backlight display.

Professional HD170 hand push holiday detector for natural gas, LPG, and coal gas pipeline inspection. Features 0-1000ppm sensitivity,

Professional holiday detector accessories including phosphor bronze brush probes, flat brushes, internal/external pipe brushes, and extension rods. Durable construction ensures reliable coating inspection and flaw detection. Custom sizes available for specialized applications. Ideal for industrial coating quality control and pipeline inspection.

Professional wet sponge holiday detector with three voltage settings (9V, 67.5V, 90V) for detecting pinholes and defects in coatings up to 500µm. Features automatic calibration, visual/audible alarms, rechargeable battery, and compliance with ASTM, ISO, and NACE standards. Ideal for industrial coating quality control and inspection applications.

Professional AC/DC high voltage holiday detector with intelligent frequency conversion technology. Detects pinholes and defects in coatings up to 11.3mm thickness. Features LCD display, 86dB alarm, and 12-16 hour battery life. Ideal for oil & gas, petrochemical, and pipeline corrosion inspection applications.

Professional HD-160 pipeline inspection system featuring high voltage porosity detection with

Advanced HD-150 porosity detector and holiday tester for non-destructive pipeline inspection. Features 0-25W output power, 5km transmission distance, and precise leak detection with automatic signal adjustment. Ideal for detecting pipe position, depth, and corrosion without excavation, with moistureproof and dustproof design for reliable field operation.

Professional brush probes and accessories for high voltage holiday detectors, including wire brushes, flat brushes, internal/external pipe probes, and extension rods. Custom sizes available for industrial coating inspection applications. Complete range of earth signal return leads and spring electrodes for comprehensive detection solutions.

Pinhole Detector To Test Protective Coatings Flaw Of Oil And Gas Pipelines, Cables, Enamel, Metal Tank Details: 【Function】 HD-201 Porosity Holiday detector is a special testing equipment used to detect oil and gas pipelines, cables, enamel, metal tank, hull and other protective coatings flaws. It is a simple and practical equipment. 【Characteristic】 1,Low power consumption, small size, light weight； 2,Simple operation； 【Main technical index】 1,Measuring range: HD-201A:0.03-3