The DAQ-M is a modular spectroradiometer containing a long lasting battery, internal memory storage and a Bluetooth (BLE) radio for communication. The integrated, cosine-corrected spectroradiometer records the changing ambient light spectrum (340 - 1010 nm) in irradiance (W/m²·nm) as often as 1Hz. DAQ-M also contains a USB port for recharging its removable Li-ion battery, a green/red LED status indicator and a power on/off switch.

Using our MAPIR SCANNER application on your mobile device you can connect to any nearby DAQ-M. The SCANNER application allows you to assign unique names to each DAQ-M, adjust the sensor settings, view measurements in real time, record individual measurements, schedule time-lapse/interval measurements and save measurements to your mobile device for later processing.

Main Features:

Research-grade spectrometer with absolute power calibration (W/m²·nm)
Two main measurement modes:
- Irradiance = records changes in the ambient light spectrum, used to produce multispectral reflectance images in MCC.
- Reflectance = records irradiance measurements of MAPIR reference targets and objects of interest, used to develop object reflectance library in MCC.
Using the free MAPIR SCANNER mobile application you can assign unique names to each DAQ-M, adjust the sensor settings, view measurements in real time, record individual measurements, schedule time-lapse/interval measurements and save measurements to your mobile device for later processing.
With a large spectrum coverage (340 - 1010 nm) you only need one DAQ-M to support calibrating every model of Survey3 camera we offer (RGN, OCN, NGB, RE, NIR). A single log file can correct any number of Survey3 cameras.
Device-to-device repeatability
Durable and reliable: no moving parts
Never needs to be recalibrated
Compact size: 40x40x25 mm (1.6x1.6x1.0 in)
Wide operating temperature range
Auto exposure and frame averaging control
Accurate Real-Time-Clock (RTC)
Internal storage supports up to 8,192 measurements
Bluetooth Low Energy (BLE) provides long battery life
User-replaceable Li-ion rechargeable battery

DAQ-M Measurement Capability:

MODE	UNITS	DESCRIPTION
Spectro-radiometer	Spectral Irradiance Power (W/m²·nm)	Research-grade spectroradiometer with absolute power calibration. Commonly used for recording the ambient light spectrum to correct multispectral images. Can also be used for measuring object irradiance, to be later post-processed into percent reflectance.
Spectro-photometer*	Percent Reflectance (%)	Research-grade spectrophotometer output by post processing raw irradiance data. Commonly used to measure object reflectance to build a spectral signature library. Directly compare with pixel reflectance obtained from processed multispectral images. Includes total reflectance %, total PPFD reflectance %, and reflectance values for CCT, CRI, XYZ, xy, and uv.
Irradiance Sensor	Total Irradiance Power (W/m²)	Measure total power output of the ambient light across the sensor's entire range (340-1010nm).
Colorimeter	CCT (K), CRI, XYZ, xy, uv	Accurate color data based on spectrometer measurement (superior to filter-based colorimeters). Supports both irradiance and reflectance*.
Munsell Color Matching Tool*	Munsell (CIE Illuminant C)	Accurate Munsell color matching lookup (lut) based on spectrometer measurement (superior to filter-based colorimeters and physical color swatches).
PAR Light/ Lux Meter	Photometric Illuminance (lm/m² = lux), PPFD (µmol/m²/s)	Assesses light levels relevant to plant growth (Photosynthetic Active Radiation - PAR, measured as PPFD) and human visual perception (Photometric Illuminance, measured as Lux). Essential for applications in horticulture, general lighting design, and assessments of light intensity on surfaces.

* requires a measurement scan from the white target in our calibration packages.

DAQ-M .CSV Measurement Example:

NAME	UNIT	VALUES
File Name		sunlight
Device Name		DAQ-M #1
Device Address		Z6560-2-26-38-3(E4:28:2E:67:55:28)
Sensor ID		CB-74-02-34-9B
Modify Time	mobile device's timezone	2025-04-23 13:39:14
Is Saturate	yes, not	not
Integration Time	ms	1.286
Wavelength	nm	340, 345, 350, ... 670, 675, 680, ... 1000, 1005, 1010
Spectrum	W/(m²·nm)	0.028496599, 0.026482204, 0.023346003, ... 0.056949656, 0.056615341, 0.056946527, ... 0.026041711, 0.025839653, 0.025660584
PPFD Spectrum	µmol/m²/s/nm	0, 0, 0, ... 0.318986416, 0.31948036, 0.323729604, ... 0, 0, 0
Total Power	W/m²	33.37362
Photopic Lux	lumen/m²	4794
S-cone-opic	lumen/m²	3978
Melanopic	lumen/m²	4386
Rhodopic	lumen/m²	4485
M-cone-opic	lumen/m²	4723
L-cone-opic	lumen/m²	4872
PPFD	μmol/m²/s	87
PPFD-R	μmol/m²/s	34
PPFD-G	μmol/m²/s	33
PPFD-B	μmol/m²/s	23
CCT	Kelvin	5484
CRI		99
XYZ		4557, 4794, 4339
xy		0.3329, 0.3502
uv		0.2037, 0.4822

RAW vs Post Processed (MCC):

VALUE	RAW	PROCESSED
File Name	✓	✓
Device Name	✓	✓
Device Address	✓	✓
Sensor ID	✓	✓
Modify Time	✓	✓
Is Saturate	✓	✓
Integration Time	✓	✓
Wavelength	✓	✓
Spectrum	✓	✓
Reflectance	X	✓
PPFD Spectrum	✓	✓
Total Power	✓	✓
Total reflectance (%)	X	✓
Total PPFD reflectance (%)	X	✓
Photopic Lux	✓	✓
S-cone-opic	✓	✓
Melanopic	✓	✓
Rhodopic	✓	✓
M-cone-opic	✓	✓
L-cone-opic	✓	✓
PPFD	✓	✓
PPFD-R	✓	✓
PPFD-G	✓	✓
PPFD-B	✓	✓
CCT (Irradiance)	✓	✓
CCT (Reflectance)	X	✓
CRI (Irradiance)	✓	✓
CRI (Reflectance)	X	✓
XYZ (Irradiance)	✓	✓
XYZ (Reflectance)	X	✓
xy (Irradiance)	✓	✓
xy (Reflectance)	X	✓
uv (Irradiance)	✓	✓
uv (Reflectance)	X	✓
Munsell C	X	✓
	RAW	PROCESSED

Ambient Light Sensor - Irradiance:

Field Spectrometer - Reflectance:

The below graph shows 7 scans of strawberry plant parts calibrated in MCC for percent reflectance using scans of the T4 White target. Also includes all Survey3 filter transmission ranges for comparison. The graph was created in MCC.

The below graph shows 2 scans of artichoke plant leaves calibrated in MCC for percent reflectance using scans of the T4 White target. Also includes all Survey3 filter transmission ranges for comparison. The graph was created in MCC.

The below graph shows 6 scans of common herbs and the surrounding dirt, calibrated in MCC for percent reflectance using scans of the T4 White target. Also includes all Survey3 filter transmission ranges for comparison. The graph was created in MCC.

DAQ-M Mounting Options:

The DAQ-M is modular by design, which allows it to be easily used in various configurations. We offer the below holders for the DAQ-M depending on how you plan to use it:

	DAQ-M Frame - 180 Degrees	The 180 Degrees Frame is designed for recording changes in the ambient light spectrum, such as bright direct sunlight. The recorded irradiance measurements are used to correct Survey3 multispectral images for percent reflectance, similar to the DAQ-A-SD.
	T4 Insert: DAQ-M Frame - 180 Degrees	The T4 Insert 180 Degrees Frame is designed for recording changes in the ambient light spectrum, such as bright direct sunlight. The recorded irradiance measurements are used to correct Survey3 multispectral images for percent reflectance, similar to the DAQ-A-SD. The T4 insert attaches inside the T4-R50 calibration target package.
	DAQ-M Frame - 15 Degrees	The 15 and 45 Degree Frames are designed to measure reflected light. The recorded measurements can be calibrated for percent reflectance using a scan of our T3/T4/T4P White calibration targets. Once converted to percent reflectance the object spectral signatures can be compared.
	DAQ-M Frame - 45 Degrees	The 15 and 45 Degree Frames are designed to measure reflected light. The recorded measurements can be calibrated for percent reflectance using a scan of our T3/T4/T4P White calibration targets. Once converted to percent reflectance the object spectral signatures can be compared.

DAQ-M Battery and Charging

The DAQ-M uses a 1200mAh Survey3 camera battery, and since it is a Bluetooth Low Energy (BLE) device is draws very little power, allowing it to run for a long time. The micro USB port on the DAQ-M allows you to recharge the internal battery, or you can use the Survey3 Dual Battery Charger.

The chart below provides some battery duration estimates based on the measurement interval. The interval can be adjusted using the SCANNER mobile application, with a minimum of 1 second between measurements. There are 8,192 memory locations to store measurements before data is overwritten.

An interval of every 2 hours or less allows for about 18 months of data recording without overwriting data.

INTERVAL	BATTERY LIFE (ESTIMATED)
Once a Month	638 days
Once a Week	637 days
Once a Day	632 days
Every 12 Hours	626 days
Every 2 Hours	575 days
Every 1 Hour	523 days
Every 30 Minutes	444 days
Every 5 Minutes	176 days
Every 1 Minute	45 days
Every 30 Seconds	23 days
Every 15 Seconds	12 days
Every 1 Second	19 hours

DAQ-M Specifications:

Dimensions	40.0 x 40.0 x 25.0 mm (1.6 x 1.6 x 1.0 in) (L x W x H)
Weight	44g
Memory Storage	Internal, Non-Removable
Maximum # Measurements in Memory	8,192
Battery	3.7V 1200 mAh Li-ion
Power Consumption	76uA @standby; 20mA@full operation
System Time Sync	Real Time Clock (Based on Mobile Device's Timezone)
Wireless Interface	Bluetooth 4.0 Low Energy (BLE)
Wireless Applications	MAPIR SCANNER (Android, iOS)
Operation Temperature Range	0C - 60C (32F - 140F)

Spectrometer Calibration	Radiometric (Channel to Channel)
Wavelength Range	340 - 1010 nm
Number of Measurements Recorded	135
Wavelength Measurement Width	5 nm
Wavelength Resolution	20 nm - 50 nm
Wavelength Accuracy	3 nm
Repeatability (peak)	1 nm
Measurement Power Range	20 - 150,000 Lux (PPFD: 0 -2,000 μmol)
Total Measurement Speed	~ 900ms
Signal to Noise Ratio	250 : 1 @ Max. Power & Average of 40
Dynamic Range	> 1000 : 1
Linearity	99%
Integration Time	Auto, or Manual (0.25 ms - 100 ms)
Logging Rate (Maximum)	1 Hz
Diffuser	Glass Cosine Corrector
Field of View	<180 degrees

Included:

1 x DAQ-M data logger

1 x Internal/Removable Survey3 Camera Battery (1200mAh)

1 x Micro USB battery charging cable

Calibration Target Accessories

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