
- Description
- Specifications
- Documents
FLK-II905/SB140/FPC Acoustic Imager w/ Sound Beacon, 1-Yr Premium Care
SB140 Sound Beacon
The Fluke SB140 Sound Beacon is specifically crafted for applications requiring precision in detecting tightness and is designed to be used alongside Fluke acoustic imagers. It emits ultrasound at a frequency of 40 kHz, which travels through the air with minimal loss. This enables sound within an enclosed area to escape through a leak pathway and be captured by the Fluke camera for visualization. The Fluke acoustic imagers are highly sensitive to the SB140’s ultrasound frequency, allowing potential leak locations to be visually displayed on the screen. Using the imager in "Beacon Mode" simplifies the process even further, as the frequency filter is preset and focused on 40 kHz.

Features and Specifications
- Sound frequency 40 kHz ± 1.5 kHz
- Controls on/off switch
- Relative humidity 10 to 95 %, non-condensing
- Ingress protection (IP) IEC 60529: IP40
- Housing Extruded Aluminum
- Battery life > 300 hours
- Power supply 9-volt alkaline (included)
Applications
- Automotive - Window and door seals
- Aviation - Aircraft gas tanks, window or door seal, pitot-static system
- Clean Rooms - Seal/Tightness test
- Appliances - Refrigerators/Wash Machine/Dishwasher door sealing
- Maritime - Vessel seal, Cargo access areas, Shipping Containers
- Construction - Door and window seals

FLK-II905 Imager Features and Specifications
- Frequency Range: 2 to 65 kHz
- Operation Distance: Up to 70 meters (230 feet) Depending on ambient conditions
- Field-of-View (FOV): 63± 5 Degrees
- Nominal Frame Rate: 25 FPS (frames per second)
- Resolution: 5.0 MP (megapixels)
- Zoom: 3 x digital zoom
- Touchscreen: Capacitive
- Display: 7-inch LCD with backlight, sunlight readable
- Memory/Storage Capacity: 32 GB
- Image Format: Blended visual and SoundMap .JPG or .PNG
- Video Format: Blended visual and SoundMap .MP4
- Save Video: Up to 5 minutes
- Interface: USB-C for data transfer
- Connectivity: Wi-Fi enabled
- 15.4 to 115.2 dB SPL (± 1 dB SPL 2 kHz)
- 5.6 to 102.5 dB SPL (± 2 dB SPL 19 kHz)
- 28.4 to 131.1 dB SPL (± 1 dB SPL 35 kHz)
- 41.8 to 133.1 dB SPL (± 3 dB SPL 52 kHz)
- Improved leak rate quantification
- LeakQ - Leak size scale, leak rate, and leak cost estimation
- On-device real time data
- Customizable profiles for different inspection types
- Stay powered all day with six hours of operating time
Key Specs
Acoustic Measurements Range:
More Highlights:

Reduce Downtime And Locate Leaks Visually
The all-in-one tool you have been looking for to visualize leaks, and mechanical issues. The ii905 Acoustic Imager with LeakQ empowers technicians with the ability to visualize sound while inspecting hoses, fittings, and connections for leaks. It comes equipped with an acoustic array composed of minute, highly sensitive microphones that produce a range of decibel levels for each frequency. Utilizing this data, an algorithm generates a sonic image, termed as SoundMap, which is overlaid on a visual image. The SoundMap adjusts automatically based on the chosen frequency level, effectively eliminating background noise. This makes the detection of compressed gas leaks remarkably straightforward. The on-device analysis software included in LeakQ estimate a leak's size and cost. The integrated visual- and textual tagging and annotation functionalities offer important details to optimize reporting and follow-up actions.

ii Series Acoustic Imagers
Most manufacturers are aware of the existence of leaks in compressed air, gas, steam, and vacuum systems, but dealing with them has been a long and tiresome process. However, with the Fluke ii Series and a little bit of training, your maintenance staff can start looking for leaks as part of their regular maintenance schedule, even during the busiest operational hours. The ii Series Acoustic Imagers allow technicians to visualize sound as they examine hoses, fittings, and connections for leaks. The device’s integrated acoustic array, composed of numerous sensitive microphones, produces a range of decibel levels for each frequency.
Feature | ii500 | ii905 | ii915 |
---|---|---|---|
LeakQ | Scale (1-10) | Leak size scale, leak rate, | Leak size scale, leak rate, |
PDQ Mode | • | ||
MecQ | • | ||
Wi-Fi | • | • | |
Frequency | 2 to 52 kHz | 2 to 65 kHz | 2 to 100 kHz |
Detection Range | Up to 50 meters (164 feet)* | Up to 70 meters (230 feet)* | Up to 120 meters (393 feet)* |
Visual Camera Resolution | 0.3 MP | 5.0 MP | 5.0 MP |
Battery Life | 6 hours | 6 hours | 6 hours |
Memory | 20 GB | 32 GB | 32 GB |
Tripod Connector | • | • |
What's in the Box
- Sound Beacon Unit:
- 9 V Battery
- Soft Case
- Accessory 1 inch probe
- Instruction Sheet, and Warranty Card
- 1X ii905 Main Body:
- 1X Hand Strap
- 2X Sensor Array Cover
- 1X Sensor Array
- 1X Neckstrap
- 1X USB-C Cable
- 1X BP291
- 1X Battery Charger
- 1X EDBC290
- 1X Connector set
- 1X Hard Case
- 1X Guide
- Safety Info
- 1-Year Standard Fluke Premium Care