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 correct multispectral reflectance images in MCC.

  • Reflectance = records reflectance measurements of MAPIR reference targets and objects of interest, used to develop object spectral signature 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 .CSV Measurement Example:

* values shown are RAW from DAQ-M sensor and have not been corrected due to using the "DAQ-M Frame - 180 Degrees" holder, which contains an additional cosine corrector to reduce light power levels such that the sensor can be used in direct sunlight without getting over-saturated.

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.

DAQ-M Specifications:

Included:

1 x DAQ-M data logger

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

1 x Micro USB battery charging cable