Flir Si2-Pro™

Industrial Acoustic Imaging Camera for Partial Discharge Detection, Pressurized Leak Detection and Mechanical Fault Detection

The Flir Si2-Pro helps you significantly lower costs associated with mechanical bearing issues and partial discharge on electrical equipment. It also enables you to drastically reduce leaks in your facilities, cutting down expenses related to compressed air and gas leaks. With the Si2 series, you’ll experience the best-in-class performance, decision support, fleet management, and enterprise data integration available. For specialized needs, you can choose from additional models: opt for the Si2-LD for advanced leak detection and mechanical fault detection applications or select the Si2-PD for your electric utility applications. Explore these models in the related products section below to find the perfect fit for your requirements.

Clear Vision, Sound Solutions

Advanced Leak Detection

Precisely detect, locate, and measure compressed air leaks, gas leaks, and partial discharges. Identify and quantify both minor and elusive issues from up to 200 m (656 ft) away—boosting operational efficiency and ensuring safety.

Save on costly repairs, reduce downtime, and enhance maintenance efficiency by identifying bearing defects before they cause equipment failure.

Ensure optimal use and maintenance of equipment in large-scale industrial settings with fleet management, cloud data integration, and OTA software updates. Combine acoustic and thermal imaging in the same report.

FLIR Si2-Pro Industrial Acoustic Imaging Camera – Full Specifications

Acoustic Measurement & Detection

Acoustic Microphones 124 low-noise MEMS microphones with real-time sound visualization
Supported Gases Compressed air, hydrogen, CO₂, methane, natural gas, helium, argon, ammonia (detects all gases under sufficient pressure)
Mechanical Fault Detection Yes (mechanical anomaly detection)
Leak Rate Sensitivity 0.0032 l/min @ 2.5 m (8.2 ft), 0.0044 l/min @ 6 m (19.6 ft)
Detection Range 0.3 m (1.0 ft) up to 200 m (656 ft)
Severity Assessment Automatic AI-based severity evaluation including recommended actions onboard

Imaging & Optical System

Field of View (FOV) 75° diagonal
Video Image Resolution 1280 × 720
Video Frame Rates Camera: 60 fps / Acoustic image: 30 fps / Screen: 70 fps
Digital Zoom 8× digital zoom
Software Updates Automatic Over-The-Air (OTA) wireless or via USB

Measurement & Analysis Details

Frequency Bandwidth 2 kHz to 130 kHz
Detection Threshold Levels 20 kHz: –7 dB SPL
35 kHz: 4 dB SPL
50 kHz: 10 dB SPL
80 kHz: 36 dB SPL
100 kHz: 51 dB SPL
Gas Leak Cost Quantification Quantifies leak rate costs for compressed air, ammonia, argon, CO₂, helium, hydrogen, methane, natural gas, nitrogen
Partial Discharge Detection Yes (mechanical fault & discharge detection)

User Interface & Display

Display Size 5-inch resistive touchscreen (1280 × 720), TFT LCD
Screen Technology Resistive touch, MIPI DSI interface

Power & Battery

Battery Pack Rechargeable Li-ion battery (RRC 2054): 14.4 V DC, 3.45 Ah, 49.68 Wh
Max Output 16.8 V DC, 5 A
Charger Input 19–26 V DC, 2.8 A; max output 17.4 V DC, 4.8 A
Battery Weight ≈ 0.25 kg
Nominal Input Voltage 12 V DC (max 17 V DC, limited)

Environmental & Certifications

Protection Rating IP54 (dust & water protection)
Operating Temperature –10°C to 50°C
Storage Temperature –20°C to 70°C
Operating & Storage Humidity 0–90% recommended

Specifications are subject to change without notice. FLIR, Si2-Pro, and related trademarks are trademarks of Teledyne FLIR LLC. :contentReference[oaicite:1]{index=1}