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Issue 1 11/2016 Page 1 of 3
EL-WiFi-21CFR-TH+High Accuracy 21CFR Remote WiFi Temperature and Humidity Sensor
• Canbeinstalledaspartofa21CFRcompliantsystemwithadditionalcontrols includingpermission-baseduse,authoritylevelsign-offandfullsystemaudit • -20 to +60°C (-4 to +140°F) temperature and 0 to 100% humidity measurement range • Wirelessly stream and view data on the EasyLog 21CFR Cloud • Configurablehighandlowalarmswithindicator
The EL-WIFI-21CFR-TH+ measures the temperature and humidity of the environment inwhichitissituated.DataisstreamedwirelesslyoveranycompatibleWiFinetwork tobeviewedontheEasyLog21CFRCloud.Duringconfiguration,thesensorwillsearchforanexistingwirelessnetworkwhilstphysicallyconnectedtothePC.Itcanthenbeplacedanywherewithinrangeofthenetwork.Ifthesensortemporarilylosesconnectivitywiththenetwork,itwilllogreadingsuntilitisabletocommunicateagainwith the EasyLog 21CFR Cloud (max 30 days at 10-second sample interval). The unit is freestanding,butitcanbeattachedtoawallorsurfaceusingthebracketprovided.
ThesensorisIEEE802.11bgn(2.4GHz)compliant,supportsWEP,WPA/WPA2encryptionandenterprisenetworks(PEAP,TTLS,FAST).
SPECIFICATIONS
Minimum Typical Maximum Unit
Battery life >6 Months
USB supply voltage 4.5 5 5.5 Vdc
Operating temperature range -20 (-4) +60 (+140) °C (°F)
Logging period (user configurable) 10 sec 10 min 12 hrs
Transmission period (user configurable) 1 min 1 hr 24 hrs
Temperature measurement range -20 (-4) +60 (+140) °C (°F)
Temperature measurement resolution 0.01 °C
Temperature display resolution 0.01
Temperature accuracy ±0.2/ ±0.4* (+5 to +60/ +41 to +140)
±0.8/ ±1.6*(-20 to +60/-4 to +140)
°C/°F
Humidity measurement range 0 100 %RH
Humidity measurement resolution 0.1 %RH
Humidity display resolution 0.1
Humidity accuracy (@ 25°C) ±1.8* (10 to 90)
±4.0*(0 to 100) %RH
Dimensions 82 x 70 x 36mm (3.22 x 2.75 x 1.41”)
*Please refer to the charts in this datasheet for more detailed accuracy specifications.
21CFRCOMPLIANCE
Permission based use and access Authority based action sign-off Data records cannot be edited or deleted Complete system audit trail For a detailed compliance checklist, please visit www.lascarelectronics.com/data-brochures
ACCESSORIES
PSU-5VDC-USB-USA USBMainsPowerAdapterforUSA
PSU USB-UK USBMainsPowerAdapter for UK
PSU USB-EU USBMainsPowerAdapter for EU
INCLUDEDINTHEBOX
EL-WIFI WALL BRACKET
WallmountingbracketforEL-WiFisensors
CABLE USB A-MICRO B USBTypeAtoMicroB
CALIBRATIONCERTIFICATESNOWAVAILABLELascarnowoffersaTraceableCalibrationCertificateServiceonTemperatureDataLoggers.UsingreferenceequipmentwhichhasbeencalibratedbyaUKAS/NISTaccreditedlaboratoryandusingapparatustraceabletonationalorinternationalstandards.Formoreinformation,pleasevisitwww.lascarelectronics.com/calibration.
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Issue 1 11/2016 Page 2 of 3
EL-WiFi-21CFR-TH+High Accuracy 21CFR Remote WiFi Temperature and Humidity Sensor
21CFRWIFISENSORSOFTWAREEasyLog21CFRWiFisoftware*isavailableasafreedownloadfromwww.easylogcloud.com.Easytoinstallanduse,EasyLog21CFRWiFiSensorSoftwareallowseasysensorset-upandconnectionofsensorstoaWiFinetworkandtheEasyLog21CFRCloud.
EASYLOG21CFRCLOUD21CFRCloudsubscriptiondeliversalloftheflexibilityofaremotemonitoringsystem:Interact with sensors via any internet-enabled device; manage and monitor sensors; accesseventlogsandsetupemailalerts;assignauthorisationlevelstouseraccountsandviewcomprehensiveaudittrailrecords.UnlikethestandardEasyLogCloudservice,21CFRCloudincludesothercontrolssuchaspermission-baseduse,authoritysign-offandfullsystemaudittoensuredatamonitoredandcollectedisregulatedto21CFRPart11 standard.
ACloudaccountsubscriptioniscreatedduringtheWiFisensorset-upprocessusingEasyLog21CFRWiFiSensorSoftware.21CFRWiFiSensorsareonlycompatiblewiththeEasyLog21CFRCloudwww.easylogcloud.com.
BATTERYLIFEANDPOWERSUPPLYThebatterycanberecharged(unitmustbebetween0-40°C)viaaPC,aUSB+5Vwalladapter,oraportableUSBbattery packusingtheUSBleadprovided.ItcanalsobepermanentlypoweredbyaUSBwalladapterorUSBbatterypack.Readings maybeaffectedwhiletheinternalbatteryisbeingcharged.However,oncecharged,continuedconnectionofthechargerwillhavenoeffect.
Batterylifeisdependenton:transmissionperiod,WiFiencryptionmethod,WiFiencryptionkeyrotationfrequency(determinedby the router/access point), signal strength between router/access point and WiFi device, presence volume and type of WiFi trafficfromotherdevices,samplerateandoperatingtemperature.
Specificationsliabletochangewithoutpriorwarning *RequiresWindows7,8.1,10
Download the latest version of the software free of charge from www.easylogcloud.com
Authority sign-off on actions
Detailed data reporting Detailed system audit reporting
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Issue 1 11/2016 Page 3 of 3
EL-WiFi-21CFR-TH+High Accuracy 21CFR Remote WiFi Temperature and Humidity Sensor
SENSORACCURACY&INFORMATION
0
20
40
60
80
100
-40 -20 0 20 40 60 80 100 120Temperature (°C)
Rela
tive
Hum
idity
(%)
Max. Range
Normal Range
ΔT (°C)
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40 -20 0 20 40 60 80Temperature (°C)
maximum accuracytypical accuracy
± 0
± 2
± 4
± 6
± 8
± 10
0 10 20 30 40 50 60 70 80 90 100Relative Humidity (%RH)
maximum accuracytypical accuracy
ΔRH (%RH)
EL-USB-2+, EL-USB-2-LCD+
100 ±3 ±2.5 ±3 ±3.590 ±2 ±2.5 ±380 ±2.5 ±370 ±2.5 ±2 ±2.56050 ±2 ±1.840302010 ±2.5 ±2
0 ±3 ±2.5
0 10 20 30 40 50 60 70 80
)HR%( ytidi
muH evitaleR
Temperature (°C)
Typicalandmaximaltoleranceat25°Cforrelativehumidity.
0
20
40
60
80
100
-40 -20 0 20 40 60 80 100 120Temperature (°C)
Rela
tive
Hum
idity
(%)
Max. Range
Normal Range
ΔT (°C)
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40 -20 0 20 40 60 80Temperature (°C)
maximum accuracytypical accuracy
± 0
± 2
± 4
± 6
± 8
± 10
0 10 20 30 40 50 60 70 80 90 100Relative Humidity (%RH)
maximum accuracytypical accuracy
ΔRH (%RH)
EL-USB-2+, EL-USB-2-LCD+
100 ±3 ±2.5 ±3 ±3.590 ±2 ±2.5 ±380 ±2.5 ±370 ±2.5 ±2 ±2.56050 ±2 ±1.840302010 ±2.5 ±2
0 ±3 ±2.5
0 10 20 30 40 50 60 70 80
)HR%( ytidi
muH evitaleR
Temperature (°C)
Typical and maximal tolerance for temperature sensor in °C.
0
20
40
60
80
100
-40 -20 0 20 40 60 80 100 120Temperature (°C)
Rela
tive
Hum
idity
(%)
Max. Range
Normal Range
ΔT (°C)
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40 -20 0 20 40 60 80Temperature (°C)
maximum accuracytypical accuracy
± 0
± 2
± 4
± 6
± 8
± 10
0 10 20 30 40 50 60 70 80 90 100Relative Humidity (%RH)
maximum accuracytypical accuracy
ΔRH (%RH)
EL-USB-2+, EL-USB-2-LCD+
100 ±3 ±2.5 ±3 ±3.590 ±2 ±2.5 ±380 ±2.5 ±370 ±2.5 ±2 ±2.56050 ±2 ±1.840302010 ±2.5 ±2
0 ±3 ±2.5
0 10 20 30 40 50 60 70 80
)HR%( ytidi
muH evitaleR
Temperature (°C)
Typicalaccuracyofrelativehumiditymeasurementsgivenin%RH for temperatures 0 to 80°C.
0
20
40
60
80
100
-40 -20 0 20 40 60 80 100 120Temperature (°C)
Rela
tive
Hum
idity
(%)
Max. Range
Normal Range
ΔT (°C)
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40 -20 0 20 40 60 80Temperature (°C)
maximum accuracytypical accuracy
± 0
± 2
± 4
± 6
± 8
± 10
0 10 20 30 40 50 60 70 80 90 100Relative Humidity (%RH)
maximum accuracytypical accuracy
ΔRH (%RH)
EL-USB-2+, EL-USB-2-LCD+
100 ±3 ±2.5 ±3 ±3.590 ±2 ±2.5 ±380 ±2.5 ±370 ±2.5 ±2 ±2.56050 ±2 ±1.840302010 ±2.5 ±2
0 ±3 ±2.5
0 10 20 30 40 50 60 70 80
)HR%( ytidi
muH evitaleR
Temperature (°C)
Operatingconditions
Long term exposure to humidity levels outside of the ‘normal’rangemaytemporarilyoffsetRHmeasurements(±3%RH after 60 hours). Once returned to less extremeconditionsthedevicewillslowlyreturntowardscalibrationstate.
Whentrackingchanges inambientconditions, the responsetimeof thehumidity sensor inyourdata logger isapproximately20minutestoreach90%ofthereading.However,ifyouaremeasuringstepchangesinhumidity(forexampleifcalibratingtheproduct)itisadvisedthatyouleavetheunitforuptofourhourstoensurethatithasenoughtimetosettleatthenewlevel.
Itisworthrememberingthatthevalueofrelativehumidityisofcoursesensitivetotemperaturevariation.Asanexample,atarelativehumidityof~90%RHatambienttemperature,avariationintemperatureof1°Cwillresultinachangeofupto-5%RH.Thereforewhencomparingmultipledevicesorcalibratingthem,anytemperaturevariationsmustbeconsidered.
