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Device specifications
Power supply 11.5...28 VDC; Overvoltage and reverse
voltage protection
Solar panel supply: max. 40 W/12 V
Power consumption
Active: <23 mA @12V
Standby: <0.6 mA @ 12V
Sensor supply 100 mA @ 5V
200 mA @ 12V
1x 1.10 A and 3 x 0.50 A @ switched supply voltage (max. 2 A in total)
Inputs 4x Analog 0...2.5 V, 16 bit (3 single ended,
1 differential)
2x Counter (one optionally as encoder)
1x Wind speed
1x Wind direction
1x RS-485 (sensor or camera input)
1x SDI-12 (MRL-8 as master)
1x Manual observer input (has no measurement input; only accepts an offset)
Outputs 3x Switch output (each approx. 500 mA @
supply voltage)
1x RS-232 (1200...115200 Baud, ASCII protocol)
1x RS-485
1x USB
1x Bluetooth
Memory 4 MB internal flash memory (equivalent
to approx. 500'000 measurement values)
32 GB SD-card (write only)
Measurement
interval
2 s … 12 h
Mobile modem 4G
4 FTP/HTTP servers
Functions: IP call, fixed IP, time-synchronization via NTP and SMS messages
Optional Accessories
Enclosure and battery for your MRL-8 Data Logger
This option is available for outdoor installations; the enclosure is precisely sized to fit the MRL-8 inside plus 12 volts rechargeable battery.
When you choose this option, we install the data logger, battery, wire harness and other accessories inside the enclosure, a 2” pole installation kit is available, if your order includes this enclosure option plus solar panels, the solar panels will be connected to the system accordingly.
Bundle Includes
QTY (1) 15” X 17” X 8 1/2” Versa-Mount Polycarbonate Enclosure
QTY (1) 14-3/4" x 12-3/4" Panel for Versa Mount Enclosure
QTY (4) Compact Plastic Submersible Cord Grips
QTY (1) PS-12200 NB2 12VDC 20Ah Rechargeable Battery
Solar Panel and pole mounting kit must be purchased separately.
Pole Mounting Kits
This kit come with everything you need to mount your enclosures to round poles or beams. It clamps on to a 2” pole to hold the enclosure securely in place. All of the parts are galvanized steel or stainless steel to resist corrosion and stand up to outdoor use. Mounting hardware includes screws and locknuts for installing enclosures with flanges. Sealing washers are also included to maintain NEMA 4, 4X, and 12 ratings when installing through the back of an enclosure. (This kit is also available for other pole diameters, contact us for more information)
PS-12200 NB2 12VDC 20Ah Rechargeable Battery
Absorbent Glass Mat (AGM) technology for superior performance
• Valve regulated, maintenance free spill proof construction
• Power/volume ratio yielding excellent energy density
• Rugged vibration and impact resistant ABS case and cover
• Gas recombination technology • 5 year design life
APPROVALS
• Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certified
• U.L. recognized • ISO9001:2015 – Quality management systems
Solar Panel and Solar Charge Controller
To ensure the correct size and capacity of your solar panel, please contact our office to discuss your application.

