Simbow Refrigerant Leak Detector ALD-200PRO — Heated-diode, 0.14 oz/yr Sensitivity & 16" Probe

The Simbow ALD-200PRO is a professional-grade heated-diode refrigerant leak detector that finds micro leaks (down to 0.14 oz/yr) across low-GWP and traditional refrigerants with a flexible 16" probe and long-lasting 3000mAh battery.

Designed for HVAC and refrigeration technicians who need a single, reliable tool for current and emerging refrigerants, the ALD-200PRO combines high sensitivity, industry-standard safety design, and practical features that speed field diagnostics. It supports A2L hydrocarbons and a wide range of HFCs, HFOs, HCFCs and blends, so you can inspect systems updated for environmental regulations without juggling multiple detectors.

How precise is the ALD-200PRO at finding tiny leaks?

The ALD-200PRO uses a heated-diode sensor calibrated to detect minute refrigerant losses as low as 0.14 oz per year. Three sensitivity settings let you tune responsiveness to the task — from locating micro leaks to scanning high-background areas without constant false alerts.

• 0.14 oz/yr minimum detection threshold for micro leaks
• Three adjustable sensitivity levels to match diagnostics needs
• Peak Mode captures and holds the highest detected reading for easier pinpointing

Which refrigerants does this detector cover and why does that matter?

It supports a broad refrigerant list including low-GWP A2L options (R32, R454B, R290, R600a) as well as widely used HFCs and legacy types like R134a, R410A and R22. That breadth helps technicians transition systems to compliant refrigerants and service mixed fleets without needing multiple sniffers.

• Compatibility with A1, A2L and A3 classes and common blends
• Includes HFOs, HFCs, HCFCs, CFCs and hydrocarbon refrigerants
• Works with 5% hydrogen/95% nitrogen tracer gas for tight-system testing

What features improve usability on real jobsites?

A 16-inch flexible probe and combined UV/LED illumination let you reach tight, dimly lit components and position the tip accurately. The clear 2.8" TFT color display, long-life 3000mAh rechargeable battery, and rugged ergonomics keep inspections fast and productive across multiple service calls.

• 16" flexible probe for confined spaces and automotive applications
• Integrated UV and LED lights to improve visibility when tracing leaks
• 2.8-inch color screen for easy readouts and 3000mAh battery for all-day use

How does the ALD-200PRO meet professional standards?

The detector is engineered to recognized industry guidance and carries CE certification, offering confidence for technicians working in HVAC, refrigeration and automotive environments. Built-in Peak Mode and sensitivity control support consistent, repeatable inspections that align with professional workflows.

• Developed to EN14624:2020 and aligned with SAE J2791 & J2913 guidelines
• CE certified for regulatory compliance in applicable markets
• Designed for repeatable performance across diverse refrigerant types

Who is this for? The Simbow ALD-200PRO is aimed at HVAC/R service technicians, refrigeration specialists and automotive AC pros who need a single detector that handles legacy refrigerants and newer low-GWP gases. It suits field engineers who demand high sensitivity, clear visual feedback and durable battery life for multi-job days — especially when working on mixed-equipment fleets or systems being converted to compliant refrigerants.