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netvox R311FA Wireless Activity Detection Sensor

netvox R311FA Wireless Activity Detection Sensor-fig1

Copyright © Netvox Technology Co., Ltd.
Cov ntaub ntawv no muaj cov ntaub ntawv tshwj xeeb uas yog cov cuab yeej ntawm NETVOX Technology. Nws yuav tsum tau khaws cia rau hauv kev ntseeg siab nruj thiab yuav tsum tsis txhob nthuav tawm rau lwm tog neeg, tag nrho lossis ib feem, yam tsis muaj ntawv tso cai ntawm NETVOX Technology. Cov kev qhia tshwj xeeb yuav hloov pauv yam tsis tau ceeb toom ua ntej.

Taw qhia

R311FA yog Wireless Activity Detection Sensor rau Netvox ClassA hom khoom siv raws li LoRaWAN qhib raws tu qauv thiab sib haum nrog LoRaWAN raws tu qauv. Thaum lub cuab yeej pom kev txav los yog kev co, nws tam sim ntawd ua rau lub tswb.

LoRa Wireless Technology:
LoRa yog lub tshuab kev sib txuas lus wireless tshwj xeeb rau kev nyob deb thiab siv hluav taws xob tsawg. Piv nrog rau lwm txoj kev sib txuas lus, LoRa kis tau spectrum modulation txoj kev zoo heev kom nthuav dav kev sib txuas lus. Dav siv nyob rau hauv ntev-ntev, tsis tshua muaj ntaub ntawv wireless kev sib txuas lus. Rau example, tsis siv neeg 'meter' nyeem ntawv, lub tsev automation khoom, wireless kev ruaj ntseg systems, muaj kev saib xyuas. Cov yam ntxwv tseem ceeb suav nrog qhov me me, kev siv hluav taws xob tsawg, kev sib kis deb, muaj peev xwm tiv thaiv kev cuam tshuam thiab lwm yam.

LoRaWAN:
LoRaWAN siv LoRa thev naus laus zis los txheeb xyuas qhov kawg-rau-kawg tus qauv tshwj xeeb los xyuas kom muaj kev sib cuam tshuam ntawm cov khoom siv thiab lub rooj vag los ntawm cov tuam txhab sib txawv.

Qhov tshwm sim

netvox R311FA Wireless Activity Detection Sensor-fig2

Lub ntsiab nta

  • Thov SX1276 wireless kev sib txuas lus module
  • 2 ntu 3V CR2450 khawm roj teeb powered
  • Kev vibration thiab roj teeb voltage nrhiav kom tau
  • Tau tshaj LoRaWANTM Class A
  • Zuj Zus hopping nthuav tawm cov tshuab thev naus laus zis
  • Kev teeb tsa tsis tuaj yeem teeb tsa los ntawm cov software thib peb, cov ntaub ntawv tuaj yeem nyeem thiab tswb tuaj yeem teeb tsa ntawm SMS ntawv thiab email (yeem)
  • Muaj tus thib peb platform: Kev Ua Haujlwm / ThingPark, TTN, MyDevices / Cayenne
  • Txhim kho kev tswj fais fab kom ntev roj teeb lub neej

Roj teeb lub neej:

  • Thov xa mus rau web: http://www.netvox.com.tw/electric/electric_calc.html
  • Ntawm no website, cov neeg siv yuav nrhiav tau lub roj teeb lub sij hawm rau ntau yam qauv ntawm txawv configurations.
    • Qhov tseeb ntau yam yuav txawv nyob ntawm ib puag ncig.
      Lub roj teeb lub neej tau txiav txim siab los ntawm kev tshaj tawm sensor zaus thiab lwm yam kev hloov pauv.

Teeb tsa kev qhia

On/off
Fais fab rau Ntxig ob ntu ntawm 3V CR2450 khawm roj teeb thiab kaw lub roj teeb npog
Qhib Nias ib qho tseem ceeb ua haujlwm kom txog thaum lub cim ntsuab thiab liab flash ib zaug.
Tua tawm

(Restore rau lub Hoobkas teeb tsa)

Nias thiab tuav lub luag haujlwm tseem ceeb rau 5 vib nas this kom txog thaum lub cim ntsuab flashes rau

20x ua.

Fais fab tuag Tshem cov roj teeb.
 

 

 

 

Nco tseg:

1. Tshem tawm thiab ntxig lub roj teeb; lub cuab yeej nco yav dhau los rau / tawm lub xeev los ntawm lub neej ntawd.

2. On/off ncua sij hawm yuav tsum yog hais txog 10 vib nas this kom tsis txhob muaj kev cuam tshuam ntawm capacitor inductance thiab lwm yam khoom siv zog cia.

3. Nias tej yam tseem ceeb thiab ntxig roj teeb rau tib lub sijhawm; nws yuav nkag

engineer test hom.

Kev koom tes hauv Network
 

 

Tsis tau koom nrog lub network

Qhib lub cuab yeej los tshawb xyuas lub network los koom.

Qhov taw qhia ntsuab nyob twj ywm rau 5 vib nas this: kev vam meej Qhov taw qhia ntsuab tseem tawm: ua tsis tiav

 

 

Tau koom nrog lub network

Qhib lub cuab yeej los tshawb xyuas lub network yav dhau los kom koom nrog. Qhov ntsuas ntsuab nyob rau 5 vib nas this: ua tiav

Qhov ntsuas ntsuab tseem tawm: ua tsis tiav

 

 

Tsis koom nrog lub network (thaum lub cuab yeej qhib)

Thawj ob feeb: sawv txhua 15 vib nas this kom xa daim ntawv thov.

Tom qab ob feeb: nkag mus rau hom pw tsaug zog thiab sawv txhua 15 feeb kom xa daim ntawv thov.

Lus Cim: Qhia kom tshem cov roj teeb yog tias lub cuab yeej tsis siv los txuag hluav taws xob.

Xav kom kuaj xyuas cov khoom pov thawj ntawm lub rooj vag.

Muaj nuj nqi
 

 

Nias thiab tuav rau 5 vib nas this

Rov qab mus rau lub Hoobkas teeb tsa / Tig tawm

Qhov taw qhia ntsuab flashes rau 20 zaug: kev vam meej Qhov taw qhia ntsuab tseem tawm: tsis

 

Nias ib zaug

Lub cuab yeej yog nyob rau hauv lub network: qhov taw qhia ntsuab flashes ib zaug thiab xa ib daim ntawv qhia

Lub cuab yeej tsis nyob hauv lub network: qhov taw qhia ntsuab tseem tawm

Hom Pw Tsaug Zog
 

Cov cuab yeej tau qhib thiab hauv lub network

Lub sij hawm pw tsaug zog: Min Interval.

Thaum qhov kev hloov pauv tshaj li teeb tsa tus nqi lossis lub xeev hloov pauv: xa cov ntaub ntawv tshaj tawm raws li Min Interval.

 

 

Cov cuab yeej qhib tab sis tsis nyob hauv lub network

Thawj ob feeb: sawv txhua 15 vib nas this kom xa daim ntawv thov.

Tom qab ob feeb: nkag mus rau hom pw tsaug zog thiab sawv txhua 15 feeb kom xa daim ntawv thov.

Nco tseg: Qhia kom tshem cov roj teeb yog tias tsis siv lub cuab yeej.

Xav kom kuaj xyuas cov khoom pov thawj ntawm lub rooj vag.

Tsawg Voltage Ceeb toom

Tsawg Voltage 2.4v XNUMX

Cov Ntaub Ntawv Qhia

Cov cuab yeej tam sim ntawd yuav xa ib daim ntawv qhia pob ntawv nrog rau cov pob ntawv uplink nrog rau cov xwm txheej vibration thiab roj teeb voltage.
Cov cuab yeej xa cov ntaub ntawv hauv kev teeb tsa ua ntej ua ntej kev teeb tsa tiav.

  • Default setting:
    • MaxTime: Max Interval = 60 min = 3600s
    • MinTime: Min Interval = 60 min = 3600s
    • Roj teeb hloov: 0 x 01 (0.1V)
    • ActiveThreshold: 0x0003 (Threshold range: 0x0003-0x00FF, 0x03 yog qhov rhiab tshaj plaws) Deactivetime: 0x05 (Deactive time
    • Ntau yam: 0x01-0xFF)
  • ActiveThreshold:
    Active Threshold = Tus nqi tseem ceeb ÷ 9.8 ÷ 0.0625
    • Lub gravitational acceleration ntawm tus qauv atmospheric siab yog 9.8 m / s 2
    • Qhov ntsuas qhov ntsuas ntawm qhov pib yog 62.5 mg
  • R311FA vibration tswb:
    Lub cuab yeej kuaj pom qhov txav tam sim lossis kev vibration, hloov ntawm lub xeev quiescent, thiab nws yuav xa daim ntawv qhia tam sim ntawd. Tom qab lub tswb vibration, tus lwm thawj tos rau Lub Sijhawm Lub Sijhawm kom nkag mus rau lub xeev quiescent ua ntej pib qhov kev tshawb pom tom ntej. Yog lub vibration
    txuas ntxiv tshwm sim thaum tus txheej txheem no, lub sij hawm restarts unit nws nkag mus rau hauv lub xeev quiescent.
  • R311F X Series DeviceType:
    R311FA 0x01 R311F B 0x 02 R311F C 0x03

    Nco tseg:
    Cov ntawv ceeb toom ncua sijhawm yuav raug ua haujlwm raws li lub hauv paus firmware uas yuav txawv.
    Lub sijhawm nruab nrab ntawm ob daim ntawv tshaj tawm yuav tsum yog lub sijhawm tsawg kawg.
    Thov xa mus rau Netvox LoRaWAN Daim Ntawv Thov Cov Ntaub Ntawv thiab Netvox Lora Command Resolver http://www.netvox.com.cn:8888/page/index daws cov ntaub ntawv uplink.

Cov ntaub ntawv qhia kev teeb tsa thiab lub sijhawm xa khoom yog raws li hauv qab no:

 

Min Interval (Unit: thib ob)

 

Max Interval (Unit: thib ob)

 

 

Qhia tau hloov

 

Kev Hloov Tam Sim No - Tshaj Qhia Hloov

 

Kev Hloov Tam Sim No able Kev Tshaj Qhia Tshaj Tawm

 

Txhua tus lej ntawm 1 ~ 65535

 

Txhua tus lej ntawm 1 ~ 65535

 

Ua tsis tau 0.

 

Qhia

rau Min Interval

 

Qhia

rau Max Interval

Exampcov ntaub ntawv configuration:

FPort: 0x07 ib

Bytes 1 1 Var (Kho = 9 Bytes)
  CmdID Ntaus ntawv NetvoxPayLoadData
  • CmdID – 1 bytes
  • DeviceType– 1 byte – Device Type of Device
  • NetvoxPayLoadData – var bytes (Max = 9bytes)
Kev piav qhia Ntaus ntawv Cmd

ID

Ntaus ntawv

Hom

NetvoxPayLoadData
Config ReportReq  

 

 

 

 

R311FA

 

0 x 01

 

 

 

 

 

0 x4f

MinTime (2bytes Chav: s) MaxTime (2bytes Chav: s) BatteryChange (1byte

Unit: 0.1V)

Reserved (4Bytes, Tsau

0 x 00)

Config

Tshaj Qhia

0 x 81 xwm txheej

(0x00_ kev ua tiav)

Khaws tseg

(8Bytes, Tsau 0x00)

NyeemConfig

Daim ntawv qhia

0 x 02 Khaws tseg

(9Bytes, Tsau 0x00)

ReadConfig ReportRsp  

0 x 82

MinTime (2bytes Chav: s) MaxTime (2bytes Chav: s) BatteryChange (1byte

Unit: 0.1V)

Reserved (4Bytes, Tsau

0 x 00)

  1. Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v
    • PIB: 014F003C003C0100000000
    • Cov cuab yeej rov qab:
      • 814F000000000000000000 (kev teeb tsa tiav)
      • 814F010000000000000000 (kev teeb tsa ua tsis tiav)
  2. Nyeem ntaus ntawv configuration parameters
    • PIB: 024F000000000000000000
    • Cov cuab yeej rov qab:
      • 824F003C003C0100000000 (tam sim no ntaus ntawv configuration tsis)
        Kev piav qhia Ntaus ntawv Cmd

        ID

        Ntaus ntawv

        Hom

        NetvoxPayLoadData
        SetR311F

        TypeReq

         

         

         

         

         

         

         

         

         

        R311F A

         

        0 x 03

         

         

         

         

         

         

         

         

         

         

        0 x4f

        R311FType (1Bytes,0x01_R311FA,0x02_R

        311 AB, 0x03_R311FC)

        Tshwj tseg (8Bytes, Tsau 0x00)
        SetR311F

        TypeRsp

        0 x 83 xwm txheej

        (0x00_ kev ua tiav)

        Khaws tseg

        (8Bytes, Tsau 0x00)

        Txais R311F

        TypeReq

        0 x 04 Khaws tseg

        (9Bytes, Tsau 0x00)

        Txais R311F

        TypeRsp

         

        0 x 84

        R311FType (1Bytes,0x01_R311FA,0x02_R

        311 AB, 0x03_R311FC)

        Tshwj tseg (8Bytes, Tsau 0x00)
        SetActive ThresholdReq  

        0 x 05

        Qhov Ntsuas (2Bytes) Deactivetime (1Byte, Unit: 1s) Reserved (6Bytes, Tsau

        0 x 00)

        SetActive

        ThresholdRsp

        0 x 85 xwm txheej

        (0x00_ kev ua tiav)

        Khaws tseg

        (8Bytes, Tsau 0x00)

        GetActive ThresholdReq 0 x 06 Tshwj tseg (9Bytes, Tsau 0x00)
        GetActive ThresholdRsp  

        0 x 86

        Qhov Ntsuas (2Bytes) Deactivetime (1Byte, Unit: 1s) Khaws tseg

        (6Bytes, Tsau 0x00)

         

  3. C han ge hom ntaus ntawv rau R311FB 0x02
    • Downlink: 03 4F 0 2 000000000000000 0
    • Cov cuab yeej rov qab:
      • 83 4F 000000000000000000 (c onfiguration tiav)
      • 83 4F 010000000000000000 (configuration n failed)
  4. Xyuas hom ntaus ntawv tam sim no
    • PIB: 0 4 4 F 000000000000000000
    • Cov cuab yeej rov qab:
      • 84 4F 0 2 0000000000000000 (tam sim no ntaus ntawv hom R311F B
         

        Kev piav qhia

         

        Ntaus ntawv

         

        CmdID

        Ntaus ntawv

        Hom

         

        NetvoxPayLoadData

        SetActiveThre

        shdReq

         

         

         

         

         

         

        R311FA

         

        0 x 05

         

         

         

         

         

         

        0 x4f

        Qhov pib

        (2 Bytes)

        Lub sijhawm tsis ua haujlwm

        (1Byte, Unit: 1s)

        Khaws tseg

        (6Bytes, Tsau 0x00)

        SetActiveThre

        shdRsp

         

        0 x 85

        xwm txheej

        (0x00_ kev ua tiav)

        Khaws tseg

        (8Bytes, Tsau 0x00)

        GetActiveThr

        esholdReq

         

        0 x 06

        Khaws tseg

        (9Bytes, Tsau 0x00)

        GetActiveThr

        esholdRsp

         

        0 x 86

        Qhov pib

        (2 Bytes)

        Lub sijhawm tsis ua haujlwm

        (1Byte, Unit: 1s)

        Khaws tseg

        (6Bytes, Tsau 0x00)

        Piv txwv tias qhov chaw pib yog 10m / s², tus nqi uas yuav tsum tau teeb tsa yog 10/9.8/0.0625 = 16.32, tus nqi kawg yog 16.32 uas yuav tsum tau ua tus lej, thiab kev teeb tsa yog 16.

  5. Configure device parameters Threshold=16 Deactivetime=10s
    • Downlink: 054F00100A000000000000
    • Cov cuab yeej rov qab:
      • 854F000000000000000000 c onfigur ation ua tiav)
      • 854F010000000000000000 (kev teeb tsa ua tsis tiav)
  6. Nyeem ntaus ntawv configuration parameters
    • PIB: 064F 000000000000000000
    • Cov cuab yeej rov qab:
      • 864F00100A000000000000 (tam sim no ntaus ntawv configuration tsis)

        Restore function configuration

         

        Kev piav qhia

         

        Ntaus ntawv

         

        CmdID

        Ntaus hom  

        NetvoxPayLoadData

         

        SetRestore ReportReq

         

         

         

         

         

        R311FA

         

        0 x 07

         

         

         

         

         

        0 x4f

        RestoreReportSet (1byte)

        0x00_ TSIS TXHOB qhia thaum sensor rov qab,

        0x01_DO qhia thaum sensor rov qab)

         

        Reserved (8Bytes, Tsau 0x00)

        SetRestore

        Tshaj Qhia

        0 x 87 xwm txheej

        (0x00_ kev ua tiav)

        Khaws tseg

        (8Bytes, Tsau 0x00)

        GetRestore

        Daim ntawv qhia

        0 x 08 Khaws tseg

        (9Bytes, Tsau 0x00)

        GetRestore ReportRsp  

        0 x 88

        RestoreReportSet (1byte, 0x00_ TSIS TXHOB qhia thaum sensor rov qab,

        0x01_DO qhia thaum sensor rov qab)

        Reserved (8Bytes, Tsau 0x00)

         

  7. Configure Do qhia thaum sensor rov qab
    • Downlink
      074f010000000000000000 ua
    • Teb
      • 874F000000000000000000 (Kev teeb tsa ua tiav)
      • 874F010000000000000000 (Kev teeb tsa tsis ua haujlwm)
  8. Nyeem ntaus ntawv parameter
    • Cov duab 084F000000000000000000
    • Teb 884F010000000000000000 (Tam sim no configuration)
    • Example rau MinTime/MaxTime logic:
      Example#1 raws li MinTime = 1 Teev, MaxTime = 1 Teev, Qhia Qhia Hloov piv txwv li BatteryVoltageChange = 0.1V

      netvox R311FA Wireless Activity Detection Sensor-fig3
      Nco tseg:
      MaxTime = MinTime. Cov ntaub ntawv tsuas yog qhia raws li MaxTime (MinTime) ntev tsis hais BtteryVoltageChange tus nqi.

    • Example#2 raws li MinTime = 15 Minutes, MaxTime = 1 Teev, Tshaj Tawm Tshaj Tawm Hloov xws li BatteryVoltageChange = 0.1V

      netvox R311FA Wireless Activity Detection Sensor-fig4

    • Example#3 raws li MinTime = 15 Minutes, MaxTime = 1 Teev, Tshaj Tawm Tshaj Tawm Hloov xws li BatteryVoltageChange = 0.1V

      netvox R311FA Wireless Activity Detection Sensor-fig5

Nco tseg:

  1. Lub cuab yeej tsuas yog tsim thiab ua cov ntaub ntawv sampling raws li MinTime Interval. Thaum nws tsaug zog, nws tsis sau cov ntaub ntawv.
  2. Cov ntaub ntawv sau tau muab piv nrog cov ntaub ntawv kawg tshaj tawm. Yog tias cov ntaub ntawv hloov pauv tus nqi ntau dua li ReportableChange tus nqi, lub cuab yeej ceeb toom raws li MinTime lub sijhawm.
    Yog tias cov ntaub ntawv sib txawv tsis ntau dua li cov ntaub ntawv kawg tau tshaj tawm, cov cuab yeej tshaj tawm raws li MaxTime ncua sijhawm.
  3. Peb tsis pom zoo kom teeb MinTime Interval tus nqi qis dhau. Yog tias MinTime Interval tsawg dhau lawm, lub cuab yeej sawv ntau zaus thiab lub roj teeb yuav poob sai sai.
  4. Thaum twg lub cuab yeej xa ib daim ntawv tshaj tawm, tsis muaj teeb meem tshwm sim los ntawm cov ntaub ntawv hloov pauv, khawm thawb lossis MaxTime lub sijhawm, lwm lub voj voog ntawm MinTime / MaxTime xam pib.

Kev teeb tsa

  1. Tshem tawm 3M nplaum nyob rau sab nraum qab ntawm Kev Tshawb Fawb Kev Ua Haujlwm thiab muab lub cev rau saum npoo ntawm cov khoom du (thov tsis txhob lo rau ntawm qhov chaw ntxhib los tiv thaiv lub cuab yeej los ntawm kev poob tom qab siv sijhawm ntev).

    Nco tseg:

    • So kom huv si saum npoo ua ntej kev teeb tsa kom tsis txhob muaj plua plav ntawm qhov chaw kom cuam tshuam rau qhov adhesion ntawm lub cuab yeej.
    • Tsis txhob nruab lub cuab yeej hauv lub thawv hlau thaiv lossis lwm yam khoom siv hluav taws xob nyob ib puag ncig kom tsis txhob cuam tshuam rau kev sib kis ntawm cov khoom siv wireless.

      netvox R311FA Wireless Activity Detection Sensor-fig6

  2. Lub cuab yeej kuaj pom ib qho kev txav los yog kev co, thiab nws yuav xa daim ntawv qhia tam sim ntawd.
    Tom qab lub tswb vibration, lub cuab yeej tos rau ib lub sijhawm (DeactiveTime- default: 5 vib nas this, tuaj yeem hloov kho) kom nkag mus rau lub xeev quiescent ua ntej pib tshawb nrhiav tom ntej.
    Nco tseg:
    • Yog tias qhov kev vibration tseem tshwm sim thaum lub sijhawm txheej txheem no (lub xeev tsis meej), nws yuav ncua 5 vib nas this kom txog thaum nws nkag mus rau hauv lub xeev quiescent.
    • Thaum lub tswb vibration yog generated, lub tswb me ntsis ntawm cov ntaub ntawv yog "1", quiescent xeev me ntsis ntawm cov ntaub ntawv yog "0"

      Yam Ntxim Saib Ntxim Ua Sensor (R311FA) yog qhov tsim nyog rau cov xwm txheej hauv qab no:

      • Cov khoom muaj nqis (painting, nyab xeeb)
      • Khoom siv
      • Cov cuab yeej muaj
      • Cov cuab yeej kho mob

        Thaum nws tsim nyog los xyuas qhov muaj peev xwm ntawm cov khoom muaj nqis yog txav mus thiab lub cev muaj zog khiav.

        netvox R311FA Wireless Activity Detection Sensor-fig7 netvox R311FA Wireless Activity Detection Sensor-fig8

Cov cuab yeej txheeb ze

netvox R311FA Wireless Activity Detection Sensor-fig9

Cov Lus Qhia Tseem Ceeb Saib Xyuas

Ua tib zoo saib xyuas cov hauv qab no txhawm rau ua tiav kev saib xyuas zoo tshaj plaws ntawm cov khoom:

  • Khaws lub cuab yeej qhuav. Los nag, ya raws, lossis muaj kua, tej zaum yuav muaj cov zaub mov thiab yog li ua rau hluav taws xob hluav taws xob tawg. Yog tias lub cuab yeej ntub, thov kom nws qhuav tag.
  • Tsis txhob siv lossis khaws cov cuab yeej hauv qhov chaw muaj plua plav lossis qias neeg. Nws yuav ua kom puas nws qhov khoom tshem tawm thiab cov khoom siv hluav taws xob.
  • Tsis txhob khaws lub cuab yeej nyob hauv qhov kub ntau dhau. Qhov kub siab tuaj yeem ua lub neej luv ntawm cov khoom siv hluav taws xob, rhuav tshem cov roj teeb, thiab deform lossis yaj qee qhov yas.
  • Tsis txhob khaws cov cuab yeej rau hauv qhov chaw txias heev. Txwv tsis pub, thaum kub nce mus rau qhov kub thiab txias, noo noo yuav tsim sab hauv, uas yuav ua kom puas lub rooj tsavxwm.
  • Tsis txhob muab pov, khob lossis co lub cuab yeej. Kev tuav tsis zoo ntawm cov cuab yeej tuaj yeem rhuav tshem cov vaj huam sib luag sab hauv thiab cov qauv tsim.
  • Tsis txhob ntxuav lub cuab yeej nrog cov tshuaj muaj zog, cov tshuaj detergents lossis cov tshuaj detergents.
  • Tsis txhob siv lub cuab yeej nrog cov xim. Smudges yuav thaiv hauv lub cuab yeej thiab cuam tshuam rau kev ua haujlwm.
  • Tsis txhob muab lub roj teeb tso rau hauv qhov hluav taws kub, lossis lub roj teeb yuav tawg. Cov roj teeb puas tseem tuaj yeem tawg.
    Txhua qhov saum toj no siv rau koj lub cuab yeej, roj teeb thiab khoom siv ntxiv. Yog tias cov cuab yeej siv tsis ua haujlwm zoo, thov coj nws mus rau qhov chaw tso cai muab kev pab kho kom ze tshaj plaws.

Cov ntaub ntawv / Cov ntaub ntawv

netvox R311FA Wireless Activity Detection Sensor [ua pdf] Tus neeg siv phau ntawv
R311FA Wireless Activity Detection Sensor, R311FA, Wireless Activity Detection Sensor, Tshawb Pom Sensor, Wireless

Cov ntaub ntawv

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