Specifications

HOBOMXSoilMoisture(MX2306) andMXSoilMoistureandTemperature(MX2307)DataLoggerManual
1‐508‐759‐9500(U.S.andInternational) 4 www.onsetcomp.com
1‐800‐LOGGERS(U.S.only) 
Tapthis: Todothis:

Startloggingiftheloggerwasconfiguredtostart
withabuttonpush.SeeConfiguringtheLogger.

Stoptheloggerfromrecordingdata(this
overridesanyStopLoggingsettingsdescribedin
ConfiguringtheLogger).

IlluminatetheloggerLEDsfor4seconds.

Setaloggerpasswordthatwillberequiredif
anothermobiledeviceattemptstoconnecttoit.
Toresetapassword,pressthebuttononthe
loggerfor10secondsortapandtapReset.

Marktheloggerasafavorite.Youcanthenfilter
thelistofdevicestoonlyshowloggersmarkedas
favorites.

Updatethefirmwareonthelogger.Alogger
readoutwillbecompletedautomaticallyatthe
beginningofthefirmwareupdateprocess
Important:Beforeupdatingthefirmwareon
thelogger,checktheremainingbatterylevel
andmakesureitisnolessthan30%.Make
sureyouhavethetimetocompletethe
entireupdateprocess,whichrequiresthat
theloggerremainsconnectedtothedevice
duringtheupgrade.

Note:Tappingthisiconisonlyrequiredwhenusingthe
apponaniPhone®,iPad®,orAndroiddevice.
ConfiguringtheLogger
Usetheapptosetupthelogger,includingselectingthelogging
options,configuringalarms,andothersettings.Thesesteps
provideanoverviewofsettingupthelogger.Forcomplete
details,seetheappuser’sguide.
1. Pressthebuttonontheloggertowakeitup.
2. Intheapp,
tapDevicesandtaptheloggerintheappto
connecttoit.Ifyouareworkingwithmultipleloggers,you
canpressthebuttonontheloggerasecondtimetobringit
tothetopofthelist.
3. Taptoconfigurethelogger.
4. TapNameand
typeanameforthelogger(optional).Ifno
nameisselected,the loggerserialnumberisusedasthe
name.
5. TapGrouptoaddtheloggertoagroup(optional).TapSave.
6. TapLoggingIntervalandchoosehowfrequentlythelogger
willrecorddataunlessoperatinginburst
loggingmode(see
BurstLogging).Note:Ifanalarmisconfigured,thelogger
willusetheloggingintervalthatwasselectedastherateto
checkforalarmconditions(alarmsarenotavailableifburst
loggingisconfigured).SeeSettingupAlarmsformore
details.
7. TapStartLoggingandselectwhenloggingwillbegin:
 Now.Loggingwillbeginimmediatelyafterconfiguration
settingsareloadedonthelogger.Thedatawillstartwith
thisindeterminedtimeandattheselectedlogging
intervalfromthere.
 OnNextLoggingInterval.Thisisthemostcommonstart
option.Loggingwillbegin
atthenextevenintervalas
determinedbytheselectedlogginginterval.Forexample,
ifa10‐minuteintervalisselected,thedatawillstartat
thenexteven10‐minutetime.
 OnButtonPush.Loggingwillbeginoncethebuttonon
theloggerispressedfor3seconds.
 OnDate/Time.Loggingwillbeginonadateandtimeyou
specify.Selectthedateandtime.
TapSave.
8. TapStopLoggingandselecttheoptionsforwhenlogging
willend.
a. Chooseoneoftwomemoryoptions:
 WhenMemory Fills.Theloggerwillcontinuerecording
datauntilthememoryisfull.
 Never(WrapWhenFull).Theloggerwillcontinue
recordingdataindefinitely,withnewestdata
overwritingtheoldest.Thisoptionisnotavailableif
theLoggingModeissettoBurst(seeBurstLogging).
b. SelectOnButtonPushtobeabletostoploggingby
pushingthebuttonontheloggerfor3seconds.
c. Selectoneofthefollowingtimeoptionsforwhentostop
logging:
 Never.Selectthisifyoudonotwanttostopthelogger
atanypredeterminedtimeframe.
 OnDate/Time.Selectthisifyouwanttheloggerto

stoploggingonaspecificdateandtime.Selectthe
dateandtime.
 After.Selectthistocontrolhowlongtheloggershould
continueloggingonceitstarts.Choosetheamountof
timetheloggerwilllogdata.Forexample,select30
daysifyouwanttheloggerto
logdatafor30daysafter
loggingbegins.
d. TapSave.
9. TapLoggingMode.Selecteitherfixedorburstlogging.With
fixedlogging,theloggerrecordsdataforallenabledsensors
and/orselectedstatisticsattheloggingintervalselected
(seeStatisticsLoggingfordetailsonchoosingstatistics
options).Inburst
mode,loggingoccursatadifferent
intervalwhenaspecifiedconditionismet.SeeBurst
Loggingformoreinformation.TapSave.
10. EnableordisableShowLED.IfShowLEDisdisabled,the
alarmandstatusLEDsontheloggerwillnotbeilluminated
whilelogging(thealarmLEDwill
notblinkifanalarmtrips).
YoucantemporarilyturnonLEDswhenShowLEDis
disabledbypressingthebuttonontheloggerfor1second.
11. EnableordisableBluetoothAlwaysOn.IfBluetoothAlways
Onisenabled,theloggerwill“advertise”orregularlysend
outaBluetoothsignalforthephone,tablet,orcomputerto
findviatheappwhileitislogging,whichusesbattery
power.WhenBluetoothAlwaysOnisdisabled,thelogger
willonlyadvertiseduringloggingwhenthebuttononthe
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