FNIRSI FDM-02 Digital Sound Level Meter (30-130dB, A/C Weighting)
Put a real number on noise, from home theatre tuning to workshop tool levels, with live readings, a trend curve and high/low alarms.
In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow*
Disclaimer:
For next-day delivery, the shipping address must
be in the AusPost next-day network, eParcel Express must be selected, and the order must be placed
before 2PM AEST Mon-Thurs excluding NSW Public Holidays. Orders may be delayed due to AusPost
pickup timings and order verifications. eParcel Express is typically a 1-day service within the
AusPost next-day network, though it is sometimes 2+ days.
A pocket-sized decibel meter that turns "that sounds loud" into a measured number, reading sound pressure levels from 30 to 130dB on a crisp 2-inch colour IPS screen.
Our ears are poor judges of loudness, and they adapt quickly to sustained noise. Switch to A-weighting to measure the way human hearing perceives sound, ideal for checking workshop tools, appliances, traffic or a neighbour's party. Switch to C-weighting to capture the low-frequency energy A-weighting rolls off, handy when setting up subwoofers, balancing speakers or assessing machinery rumble.
Fast (125ms) and Slow (1s) response modes let you track sharp, impulsive sounds or average out a fluctuating source, while the real-time curve shows the last 30 seconds of sound so you can see exactly when levels spike. Set high and low thresholds and the meter logs the 30 most recent alarm events for later review.
It runs from a built-in 1500mAh rechargeable battery topped up over USB-C, so there are no coin cells to hunt down. For legal or workplace compliance testing, use a certified, calibrated sound level meter; this one is built for fast, practical everyday measurement.
Features
- Measure everything from a quiet room to a loud concert with a 30–130dB range and 0.1dB resolution
- Choose how the meter hears with A-weighting (human hearing) or C-weighting (low-frequency and peak content)
- Catch quick bangs or steady drones by switching between Fast (125ms) and Slow (1s) response
- See trends, not just numbers: the real-time curve plots the last 30 seconds of sound level
- Never miss a noise event, with adjustable high/low thresholds (0–130dB), LED alarm and a record of the 30 most recent alarms
- Read it clearly anywhere on the 2-inch colour IPS display, with light/dark themes and 5–100% brightness
- Skip disposable batteries thanks to the built-in 1500mAh rechargeable cell with USB-C charging
- Save charge automatically with auto power-off adjustable from 1 to 60 minutes
- Take it anywhere: a compact handheld body with a storage bag included
Specifications
| Property | Specification |
|---|---|
| Model | FNIRSI FDM-02 |
| Measurement Range | 30–130dB |
| Accuracy | ±1.5dB (94dB @ 1kHz reference) |
| Resolution | 0.1dB |
| Frequency Weighting | A / C |
| Time Weighting | Fast (125ms) / Slow (1s) |
| Microphone | Condenser |
| Display | 2.0" colour IPS, light/dark themes |
| Brightness | Adjustable, 5–100% |
| Trend Curve | 30 seconds of real-time data |
| Alarm | High/low thresholds (0–130dB), LED indication, 30-event record |
| Battery | Built-in 1500mAh 3.7V lithium polymer, rechargeable |
| Charging | USB-C |
| Auto Power-Off | Adjustable, 1–60 minutes |
| Dimensions | 183 x 63 x 28mm |
What's Included
- 1x FNIRSI FDM-02 Digital Sound Level Meter
- 1x USB-C charging cable
- 1x Storage bag
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
40 Aruma Place
Cardiff
NSW, 2285
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
Have a product question? We're here to help!
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