WXF-ONST4HOBO Pendant MX Loggers

HOBO® Pendant® MX Temp (MX2201) and Temp/Light (MX2202) Logger Manual 21536-B HOBO Pendant MX loggers measure temperature (MX2201) or temperature/light (MX2202) in indoor and outdoor environments. Designed for durability, these compact, waterproof loggers can be used in numerous applications, including fresh and salt water. The loggers are Bluetooth® Low Energy-enabled for wireless communication with a mobile device. Using the HOBOmobile® app, you can easily configure the loggers, download logged data to your phone or tablet, or automatically upload the data to HOBOlink® for further analysis. You can also configure the loggers to calculate statistics, set up alarms to trip at specific thresholds, or enable burst logging in which data is logged at a faster interval when sensor readings are above or below certain limits. Specifications Temperature Sensor (MX2201 and MX2202) Range -20° to 70°C (-4° to 158°F) in air -20° to 50°C (-4° to 122°F) in water Accuracy ±0.5°C from -20° to 70°C (-4° to 158°F) Resolution 0.04°C (0.072°F) Drift <0.1°C (0.18°F) per year Response Time 17 minutes typical to 90% in air moving 1 m/s, unmounted 7 minutes typical to 90% in stirred water, unmounted Light Sensor (MX2202) Range 0 to 167,731 lux (15,582 lum/ft 2 ) Accuracy ±10% typical for direct sunlight (see Light Measurement on page 2 for more details) Logger Logger Operating Range -20° to 70°C (-4° to 158°F) in air Buoyancy (Fresh Water) 2 g (0.07 oz) positive Waterproof To 30.5 m (100 ft) Radio Power 1 mW (0 dBm) Transmission Range Approximately 30.5 m (100 ft) line-of-sight Wireless Data Standard Bluetooth Low Energy (Bluetooth Smart) Logging Rate 1 second to 18 hours Time Accuracy ±1 minute per month at 25°C (77°F) Battery CR2032 3V lithium, user replaceable Battery Life 1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off disabled in software. 2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off enabled in software. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life. To ensure proper battery installation, see Battery Information for detailed instructions on replacing the battery. Memory 96,000 measurements Full Memory Download Time Approximately 45 seconds; may take longer the farther the device is from the logger Wetted Materials Polypropylene case, EPDM O-ring Dimensions 3.35 x 5.64 x 1.6 cm (1.32 x 2.22 x 0.63 inches) Weight 12.75 g (0.45 oz) The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). See last page HOBO Pendant MX Logger Models: • MX Temp (MX2201) • MX Temp/Light (MX2202) Required Items: • HOBOmobile app • Device with iOS or Android™ and Bluetooth Accessories: • Solar radiation shield (RS1 or M-RSA) • Mounting bracket for solar radiation shield (MX2200-RS- BRACKET) • Replacement O-rings (MX2201-02-ORING) MX2201 Model Shown HOBO Pendant MX Temp (MX2201) and Temp/Light (MX2202) Logger Manual 1-800-LOGGERS 2 www.onsetcomp.com Logger Components and Operation MX2202 model shown Mounting Tab: Use the tabs at the top and bottom of the logger to mount it (see Deploying and Mounting the Logger). Temperature and Light Sensors: The temperature sensor (MX2201 and MX2202) and light sensor (MX2202) are located on the right side of the logger. See Light Measurement for more details on the light sensor. Status LED: This LED blinks green every 4 seconds when the logger is logging (unless Show LED is disabled as described in Configuring the Logger). If the logger is waiting to start logging because it was configured to start “On Button Push” or with a delayed start, it will blink green every 8 seconds. Both this LED and the Alarm LED will blink once when you press the start button to wake up the logger before configuring it. If you select Page Logger LED in the HOBOmobile app, both LEDs will be illuminated for 5 seconds. Alarm LED: This LED blinks red every 4 seconds when an alarm is tripped (unless Show LED is disabled as described in Configuring the Logger). Start Button: Press the circle on the front of the logger case for 1 second to wake up the logger (unless Bluetooth Always Off is disabled as described in Configuring the Logger). Both LEDs will blink and the logger will move to the top of the loggers list in HOBOmobile. You may need to press the button a second time to wake up the logger if it is logging every 5 seconds or faster and the temperature is -10°C (14°F) or below. Press this circle for 3 seconds to start or stop the logger when it is configured to start or stop “On Button Push” (see Configuring the Logger). Both LEDs will blink four times when you press the circle to start or stop logging. Press this circle for 10 seconds to reset a password. Note: The circle on the front of the logger represents the button area on the logger. You will not feel an actual button push when you press that area; this is normal. Light Measurement (MX2002) The logger measures light intensity in units of lumens/ft 2 or lux. The light sensor in the MX2202 has a spectral response that tightly matches the photopic response of the human eye. This is shown in Plot A. The light sensor has range of 0 to 167,731 lux (15,582 lum/ft 2 ). The resolution of the light measurement varies from 1 unit of lux or lum/ft 2 in very dim light to 40 lux (4 lum/ft 2 ) for a full scale measurement. Plot A Light Measurement Accuracy Although the MX2202 is factory calibrated to account for the light attenuation of the plastic enclosure, you may notice a significant difference in the MX2202 reading compared to a commercially available lux meter. Ideally, a light meter’s response should be proportional to the cosine of the angle at which the light is incident. The MX2202 does not collect light exactly according to this rule. Plot B illustrates the difference between an ideal cosine response and the approx…

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FCC ID: WXF-ONST4 IC: 7936A-ONST4 MX2201 FCC ID: WXF-ONST4 IC: 7936A-ONST4 FCC ID: WXF-ONST4 IC: 7936A-ONST4 MX2202 FCC ID: WXF-ONST4 IC: 7936A-ONST4

Document# 21678 Laser Etch, End Cap, MX2201 temp logger Scale: 1 : 1Per ECO # 21701 Rev. A1Part#s MX2201 Do not etch outline Issued: 8/10/17 Drawn by: L. Eisenman Computer Corporation 470 MacArthur Blvd., Bourne, MA 02532 Main: 508-759-9500 Fax: 508-759-9100 FCC ID: WXF-ONST4 IC: 7936A-ONST4 Assembled in USA R 201-140397 KCC 12345678910 6° Serial number will match the data matrix code 2312312312 MX2201 Rev A1

Document# 21708 Laser Etch, End Cap, MX2202 temp & light logger Scale: 1 : 1Per ECO # 21701 Rev. A1Part#s MX2202 Do not etch outline Issued: 8/10/17 Drawn by: L. Eisenman Computer Corporation 470 MacArthur Blvd., Bourne, MA 02532 Main: 508-759-9500 Fax: 508-759-9100 Serial number will match the data matrix code FCC ID: WXF-ONST4 IC: 7936A-ONST4 Assembled in USA 2312312312 MX2202 R 201-140397 KCC 12345678910 6° Rev A1

FCC ID: WXF-ONST4 IC: 7936A-ONST4

FCC ID: WXF-ONST4 IC: 7936A-ONST4 MX2201 FCC ID: WXF-ONST4 IC: 7936A-ONST4 MX2202 FCC ID: WXF-ONST4 IC: 7936A-ONST4

FCC ID: WXF-ONST4 Model: MX2201, MX2202 Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 where: S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Maximum peak output power at the antenna terminal: 0.22 (dBm) Maximum peak output power at the antenna terminal: 1.051961874 (mW) Antenna gain(typical): 1.3 (dBi) Maximum antenna gain: 1.348962883 (numeric) Prediction distance: 20 (cm) Prediction frequency: 2450 (MHz) MPE limit for uncontrolled exposure at prediction frequency: 1 (mW/cm^2) Power density at prediction frequency: 0.000282 (mW/cm^2) Therefore device complies with FCC RF radiation exposure limits for general population in mobile exposure category (distance > 20cm) 2 4 R PG S p =

Bureau Veritas Consumer Products Serv ices, Inc. is accredited by the American Association f or Laboratory Accreditation f or the specif ic scope of accreditation under Certif icate Number 1627-01. This report may contain data which is not cov ered by the A2LA accreditation. ____________________________________________________________ Bureau Veritas Consumer Products Services, Inc. One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 1 of 37 Test Report Bureau Veritas Consumer Products Services, Inc. Report No ER2107-2 Issue 2 Client Onset Computer Corporation Jim Corrigan Address 470 MacArthur Blvd. Bourne, MA 02532 Phone (508) 743-3195 Items tested MX2201/2 FCC ID WXF-ONST4 IC ID 7936A-ONST4 FRN 0009380064 Equipment Type Digital Transmission System Equipment Code DTS FCC/IC Rule Parts CFR Title 47 FCC Part 15.247, ISED Canada RSS-247 Issue 2 Test Dates July 12 to 19, 2017 Results As detailed within this report Prepared by Tuyen Truong – Test Engineer Authorized by Anna Vancheva - EMC Engineer Issue Date 8/10/2020 Conditions of Issue This Test Report is issued subject to the conditions stated in the ‘Conditions of Testing’ section on page 36 of this report. Test Report for Onset Computer Corporation  Report No. ER2107-2 Issue 2 August 17, 2020 ______________________________________________________________________ ____________________________________________________________ Bureau Veritas Consumer Products Services, Inc. One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 2 of 37 Contents Contents .......................................................................................................................................2 Summary ......................................................................................................................................3 Test Methodology.........................................................................................................................4 Product Tested - Configuration Documentation ..........................................................................5 Statement of Conformity ..............................................................................................................6 Modifications Required for Compliance .......................................................................................6 Test Results .................................................................................................................................7 Bandwidth .................................................................................................................................7 Peak Output Power.................................................................................................................10 Radiated Spurious Emissions ................................................................................................13 Duty Cycle Correction Factor .................................................................................................22 Conducted Spurious Emissions .............................................................................................24 Power Spectral Density ..........................................................................................................29 Occupied Bandwidth...............................................................................................................32 Measurement Uncertainty ..........................................................................................................35 Conditions of Testing .................................................................................................................36 Form Final Report REV 12-07-15 Test Report for Onset Computer Corporation  Report No. ER2107-2 Issue 2 August 17, 2020 ______________________________________________________________________ _____________________________________________________________ Bureau Veritas Consumer Products Services, Inc. One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 3 of 37 Summary This test report supports an application for certification of a transmitter operating pursuant to: CFR Title 47 FCC Part 15.247, ISED Canada RSS-247 Issue 2. “MX2201/2” is a Bluetooth Low Energy transmitter operating in the 2402 MHz to 2480 MHz frequency range. Antenna Type: Internal surface mount chip Gain: 1.3dBi We found that the product met the above requirements without modification. Test samples were received in good condition. Data tables may contain Curtis-Straus LLC. Curtis-Straus LLC. a wholly owned subsidiary of Bureau Veritas was merged into its parent company in 2019. Issue No. Reason f or change Date Issued 1 Original release 7/29/2020 2 Updating Standard revisions 8/10/2020 Test Report for Onset Computer Corporation  Report No. ER2107-2 Issue 2 August 17, 2020 ______________________________________________________________________ _____________________________________________________________ Bureau Veritas Consumer Products Services, Inc. One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 4 of 37 Test M ethodology All testing was performed according to the following rules/procedures/documents; CFR 47 FCC Part 15.247, RSS-247 Issue 2, RSS-Gen Issue 5, FCC KDB 558074 D01 DTS Measurement Guidance v05r02 and ANSI C63.10-2013. Radiated emissions were maximized by rotating the device around 3 orthogonal planes (X, Y and Z) as well as varying the test antenna’s height and polarity. The device antenna could not be maximized separately. RF measurements were performed at the antenna port. 3 channels were tested as follows:  Low Channel - 2402MHz  Mid Channel - 2440MHz  High Channel - 2480MHz EUT operating voltage is 3VDC from battery. The following bandwidths were used during radiated spurious emissions testing. Frequency RBW VBW 0.15-30MHz 9kHz 3…

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FCC ID: WXF-ONST4 IC: 7936A-ONST4 FCC ID: WXF-ONST4 IC: 7936A-ONST4 FCC ID: WXF-ONST4 IC: 7936A-ONST4

FCC ID: WXF-ONST4 IC: 7936A-ONST4 30-1000MHz FCC ID: WXF-ONST4 IC: 7936A-ONST4 1-6GHz FCC ID: WXF-ONST4 IC: 7936A-ONST4 6-18GHz