Marmonix MLM-1050 (MLM 1050) Split-Probe Lux Meter
Split-type lux meter for lighting surveys from 0 to 200,000 lx (0 to 18,581 fc), ±3% up to 999.9 lx. The sensor sits on its own cable, and the meter logs up to 32,752 readings, connects to a phone app over Bluetooth and to PC software over USB, shows MAX/MIN/AVG and also reads temperature. 2-year warranty.
The Marmonix MLM-1050 lux meter (also written MLM 1050) measures how much light actually reaches a desk, floor, shelf or work surface, from 0 to 200,000 lx. Facility managers, lighting contractors, HSE officers and fit-out consultants in the UAE and GCC use it to check a space against its lighting design, record the results and prove a retrofit delivered what was promised. The silicon photodiode sensor sits on its own cable, so it lies flat at the task plane while you read the display away from your own shadow. You will find it in the Marmonix lux meters range.
Why choose the MLM-1050 split-type illuminance meter
- One meter from dim to daylight: four automatic ranges cover 0.1 lx resolution in low light up to 200,000 lx in full sun.
- Readings you can document: 32,752-record memory, Bluetooth to a phone app and USB to Windows software with Excel export, so a lighting survey becomes a report instead of handwritten notes.
- Survey statistics built in: MAX, MIN, difference, integral and integral average help you find the darkest point and the room average in one pass.
- Alarms for pass/fail checks: set high and low limits anywhere from 0 to 200,000 lx and the meter sounds when a reading falls outside them.
- Temperature too: a second reading of −10 to 65 °C, useful in warehouses, plant rooms and hot outdoor sites.
- Backed by a 2-year warranty and supplied with a certificate of conformity.
Where the MLM-1050 is used
- Offices, schools and hospitals: verifying task-area lighting after LED retrofits or before handover.
- Warehouses, factories and car parks: checking aisle and floor lighting for safety audits.
- Retail and hospitality: keeping display and dining lighting consistent across branches.
- Sports halls and outdoor areas: measuring high light levels, up to direct sunlight, with the 200,000 lx range.
- Greenhouses and indoor farms: spot-checking light levels across benches.
- Lighting design and commissioning: comparing measured lux with the design calculation.
MLM-1050 technical specifications
| Parameter | MLM-1050 |
|---|---|
| Sensor | Silicon photodiode illuminance probe on a separate cable (split-type design) |
| Illuminance range | 0 to 200,000 lx (0 to 18,581 fc) |
| Range 1 | 0 to 999.9 lx (0 to 92.894 fc), resolution 0.1 lx (0.01 fc), ±3% |
| Range 2 | 1,000 to 9,999 lx (93 to 929 fc), resolution 1 lx (0.1 fc), ±4% |
| Range 3 | 10,000 to 99,999 lx (929 to 9,290 fc), resolution 10 lx (0.9 fc), ±4% |
| Range 4 | 100,000 to 200,000 lx (up to 18,581 fc), resolution 100 lx (9.3 fc), ±4% |
| Ranging | Automatic, with sensitive response for low light below 10 lx |
| Temperature | −10 to 65 °C (14 to 149 °F), resolution 0.1 °C, ±1.5 °C |
| Units | lx or fc; °C or °F (1 fc = 10.764 lx) |
| Readings shown | Current, MAX, MIN, difference (Δ), integral (Σ) and integral average (AVG), data hold, zero calibration |
| Alarm | High and low limits with sound alarm, settable from 0 to 200,000 lx |
| Data memory | Up to 32,752 stored records; recording interval from 1 s |
| Connectivity | Bluetooth to the Android and iOS app; USB to Windows PC software (64-bit Windows 7, 10, 11) with Excel (.xls) export |
| Auto power-off | Adjustable from 1 to 99 minutes, or off |
| Part number / GTIN | 7603141 / 6298043998208 |
| Warranty | 2 years from date of purchase (manufacturer datasheet) |
How to run a lux survey with the MLM-1050
- Switch on and let the sensor settle; fit the shading cover and long-press the Hold/Zero key to zero the reading if it does not show zero.
- Choose lx or fc, and set high/low alarm limits if you are checking against a target value.
- Place the sensor flat at the task height (for example desk height or floor level) with the dome facing up.
- Stand back and keep your body out of the light path while the reading stabilises.
- Measure a grid of points, including corners and spots between luminaires, and use MAX, MIN and AVG to see the spread.
- Start recording or connect the app to save the readings, then export them to Excel for your report.
For a room target, the average shows whether the space passes and the minimum shows where it does not. Measure again with blinds closed or after dark to see what the electric lighting delivers on its own.
MLM-1050 compared with other 200,000 lx lux meters sold in the UAE
Based on the specifications each maker or seller publishes; “—” or “not listed” means the detail is not stated.
| Feature | Marmonix MLM-1050 | Hioki FT3425 | UNI-T UT383S |
|---|---|---|---|
| Maximum range | 200,000 lx | 200,000 lx (5 ranges from 20 lx) | 200,000 lx |
| Sensor on separate cable | Yes | — | Yes |
| Data memory | 32,752 records | 99 values | Not listed by seller |
| Wireless / PC | Bluetooth app + USB PC software | Bluetooth (GENNECT Cross app) + USB | Not listed by seller |
| Temperature reading | Yes, −10 to 65 °C | Not listed | Not listed |
| Integral / average statistics | Yes (Σ and AVG) | Not listed | MAX/MIN |
If you need logging, app reporting and temperature in one meter, the MLM-1050 covers more ground than basic split-probe meters. Our lux meter buyer’s guide explains accuracy classes, cosine correction and how to choose by application.
What’s in the box
- MLM-1050 main unit
- Separate light sensor probe with cable
- Carrying case
- USB cable
- User manual
- Certificate of conformity
- Warranty card
Buy the MLM-1050 in the UAE and GCC
Marmonix supplies the MLM-1050 with local support in the UAE and delivery across Saudi Arabia, Oman, Qatar, Kuwait and Bahrain. Building a full environmental kit? Pair it with the MAN-740 anemometer for airflow, temperature and humidity, or the MSL-761 sound level meter for noise checks. The environmental and physical measurement guide and the sound level meter guide cover the rest of a workplace survey. The datasheet and user manual are in the Downloads tab.
MLM-1050 lux meter FAQ
What is the measuring range of the MLM-1050 lux meter?
It reads from 0 to 200,000 lx (0 to 18,581 fc) across four automatic ranges. Resolution is 0.1 lx on the lowest range and 100 lx on the highest, so it handles both dim corridors and direct sunlight.
How accurate is the Marmonix MLM-1050?
The datasheet gives ±3% from 0 to 999.9 lx and ±4% from 1,000 lx up to 200,000 lx. Temperature is accurate to ±1.5 °C.
Can the MLM-1050 log readings and send them to a phone or PC?
Yes. It stores up to 32,752 records at an interval you set (from 1 s), connects to a mobile app over Bluetooth and to Windows PC software over USB, and the data can be exported to Excel.
Why does a lux meter need a separate sensor on a cable?
Your body and the display can shade or reflect light onto the sensor. With the MLM-1050 the photodiode lies flat on the work surface while you read the display from a distance, which gives cleaner readings on desks, floors and shelves.
How do I convert foot-candles to lux?
Multiply foot-candles by 10.764 to get lux. The MLM-1050 can also switch its display between lx and fc, so no manual conversion is needed.
Is the MLM-1050 available in the UAE and GCC?
Yes. Marmonix supplies the MLM-1050 in the UAE and ships across the GCC. Contact us for a quote, bulk pricing for facility teams, or the datasheet.



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