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Search results for: 'Explain the difference between "hard" and "soft" water and how it is measured.'

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  1. Serial Port RS232 RS485 To WiFi Ethernet RJ45 Converter Server IOT Device USR-W610 Hardware Watchdog Modbus RTU To TCP
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    Serial Port RS232 RS485 To WiFi Ethernet RJ45 Conv... SKU : USR-W610
    Special Price US$27.00 Regular Price US$30.00
  2. RFID Combo Thick Card 860-960MHz ISO 18000-6C + 13.56MHz ISO 15693 Dual Frequency Combo Card
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    RFID Combo Thick Card 860-960MHz ISO 18000-6C + 13... SKU : UHFCOMBOTHICK
    Special Price US$0.72 Regular Price US$0.80
  3. RFID Combo Thin Card 860-960MHz ISO 18000-6C + 13.56MHz ISO 14443A Dual Frequency Combo Card
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    RFID Combo Thin Card 860-960MHz ISO 18000-6C + 13.... SKU : UHFCOMBOTHIN
    Special Price US$0.72 Regular Price US$0.80 As low as US$0.05
  4. RFID 134 2KHz + 125KHz Low Cost Reader Writer for EM4305 ISO1178485 Animal Tag Standard +Software FREE
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    RFID 134 2KHz + 125KHz Low Cost Reader Writer for ... SKU : GZ1342D
    Special Price US$110.61 Regular Price US$122.91
  5. RFID 134.2KHz module FDX-B FDXB ISO 11784 with external coil antenna and sample tags
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    RFID 134.2KHz module FDX-B FDXB ISO 11784 with ext... SKU : UHF11784ANT1
    Special Price US$17.42 Regular Price US$19.35
  6. 1pc USB ACR122U NFC RFID Smart Card Reader Writer For all 4 types of NFC (ISO/IEC18092) Tags + 5pcs
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    1pc USB ACR122U NFC RFID Smart Card Reader Writer ... SKU : ACR122U-A9
    Special Price US$21.77 Regular Price US$24.19
  7. RFID UHF USB desktop Reader and Writer 902～928MHz/865～868MHz 18000-6C with English SDK demo software user manual
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    RFID UHF USB desktop Reader and Writer 902～928MH... SKU : JRD1902
    Special Price US$21.77 Regular Price US$24.19
  8. RFID 13.56 Mhz ISO 15693 Desktop Reader Writer USB SDK Plug-n-Play
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    RFID 13.56 Mhz ISO 15693 Desktop Reader Writer USB... SKU : BC75015693RWU
    Special Price US$23.23 Regular Price US$25.81
  9. New RFID UHF PCB Inlay Tags at lowest $0.5 EPC 96-bit ISO 18000 On-metal 36x13x3mm
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    New RFID UHF PCB Inlay Tags at lowest $0.5 EPC 96-... SKU : UHFPCB
    Special Price US$0.44 Regular Price US$0.48 As low as US$0.09
  10. Portable Bluetooth+USB UHF RFID reader card reader card issuer Desktop R500 program Long Range 2M
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    Portable Bluetooth+USB UHF RFID reader card reader... SKU : MZUHFBTD
    Special Price US$116.12 Regular Price US$129.02
    Out of stock
  11. 100pcs Ntag213 NFC Tags 13.56MHz ISO14443A NFC Sticker Ntag 213 All NFC Phone Available RFID NFC tag
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    100pcs Ntag213 NFC Tags 13.56MHz ISO14443A NFC Sti... SKU : HFLABELNTAG
    Special Price US$0.12 Regular Price US$0.13
  12. WiFi 4G Qr IC & ID Card Reader Facial Recognition Access Control Terminal with Free Time Attendance Software
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    WiFi 4G Qr IC & ID Card Reader Facial Recognit... SKU : WCAM101119340602
    Special Price US$163.34 Regular Price US$181.49
  13. Jakcom Smart Ring Wear Convenient R3 R3F Timer2 (MJ02) Black Color Magic Finger NFC Ring For Android
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    Jakcom Smart Ring Wear Convenient R3 R3F Timer2 (M... SKU : 32832918615
    Special Price US$14.52 Regular Price US$16.13
  14. 100pcs NFC TAG Sticker 13.56MHz ISO14443A NTAG 213 NFC Sticker Universal Lable RFID Tag for all NFC
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    100pcs NFC TAG Sticker 13.56MHz ISO14443A NTAG 213... SKU : NT213STICKER
    Special Price US$8.71 Regular Price US$9.68
  15. Portable LCD Display Animal Microchip Scanner Tag Barcode Scanner ISO11784/11785 134.2KHz FDX-B Pet
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    Portable LCD Display Animal Microchip Scanner Tag ... SKU : 32972794099
    Special Price US$32.66 Regular Price US$36.29
    Out of stock
  16. ISO11785/84 FDX-B Pet Microchip Scanner, Animal RFID Tag Reader dog reader Low Frequency Handheld
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    ISO11785/84 FDX-B Pet Microchip Scanner, Animal RF... SKU : RFIDFDXR
    Special Price US$29.03 Regular Price US$32.25
    Out of stock
  17. Waterproof NFC Tags Lable Ntag213 13.56mhz RFID Smart Card For All NFC Enabled Phone NFC Tags Sticke
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    Waterproof NFC Tags Lable Ntag213 13.56mhz RFID Sm... SKU : 32971403955
    Special Price US$0.29 Regular Price US$0.32
    Out of stock
  18. Waterproof 1PCS Ntag215 NFC Tags Sticker Phone Available Adhesive Labels RFID Tag 25mm Patrol attend
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    Waterproof 1PCS Ntag215 NFC Tags Sticker Phone Ava... SKU : 32959171541
    Special Price US$0.42 Regular Price US$0.46
    Out of stock
  19. 13.56MHZ MF 1K S50 F08 NFC Tags ISO14443A Silicone NFC Wristband Bracelet RFID Wrist Card
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    13.56MHZ MF 1K S50 F08 NFC Tags ISO14443A Silicone... SKU : 32823475900
    Special Price US$0.67 Regular Price US$0.74
    Out of stock
  20. 134.2khz ISO11784 ISO11785 rfid ear tag for animal cattle sheep pig management
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    134.2khz ISO11784 ISO11785 rfid ear tag for animal... SKU : 32681572703
    Special Price US$0.51 Regular Price US$0.56
    Out of stock
  21. high performance 13.56MHz HF RFID ISO15693 organic glass pad antenna used for access control
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    high performance 13.56MHz HF RFID ISO15693 organic... SKU : CFRA1001
    Special Price US$127.04 Regular Price US$141.15
  22. 100pcs 0# RFID IC keyfobs I3.56 MHz keychains NFC key tags ISO14443A MF Classic 1k token tag
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    100pcs 0# RFID IC keyfobs I3.56 MHz keychains NFC ... SKU : 32845053616
    Special Price US$174.18 Regular Price US$193.54
    Out of stock
  23. Monza R6 Long reading range RFID UHF Tag EPC C1 GEN2 ISO18000-6C -20pcs
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    Monza R6 Long reading range RFID UHF Tag EPC C1 GE... SKU : 32854205960
    Special Price US$5.23 Regular Price US$5.81
    Out of stock
  24. Free shipping USB port ISO15693 13.56Mhz NFC RFID reader Ntag-203 RFID Reader+ Ntag tags 10 pcs
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    Free shipping USB port ISO15693 13.56Mhz NFC RF... SKU : 32558557439
    Special Price US$46.45 Regular Price US$51.61
    Out of stock
  25. 1000piece/roll NFC Sticker/Adhesive Label/Tag RFID IC 13.56MHz ISO14443A 1k S50 FM1108
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    1000piece/roll NFC Sticker/Adhesive Label/Tag RFID... SKU : 32740572895
    Special Price US$259.27 Regular Price US$288.08
    Out of stock
  26. NFC NTAG215 Chip ISO14443A NFC Card RFID Tag for All NFC Mobile Phone 100pcs
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    NFC NTAG215 Chip ISO14443A NFC Card RFID Tag for A... SKU : 32817195866
    Special Price US$21.77 Regular Price US$24.19
    Out of stock
  27. 1W 13.56MHz RFID ISO15693 middle range reader with one antenna port provide free sdk for library man
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    1W 13.56MHz RFID ISO15693 middle range reader with... SKU : CFRH9011
    Special Price US$179.66 Regular Price US$199.62
  28. Jakcom R3 Waterproof Smart Ring NFC Mobile Phone Smart Bracelet High Technology Phone Lock Magic Mag
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    Jakcom R3 Waterproof Smart Ring NFC Mobile Phone S... SKU : 32869161903
    Special Price US$15.55 Regular Price US$17.28
  29. RFID UHF Full Range 860-960 MHz Mid-range 12M Reader Writer RS232RS485Wiegand EPC 96-bit 18000 Multi-tags
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    RFID UHF Full Range 860-960 MHz Mid-range 12M Read... SKU : HY102
    Special Price US$145.15 Regular Price US$161.28
  30. RFID UHF 860-960 MHz Mid-range 5M Reader Writer EPC 96-bit RS232/Wiegand/TCPIP/WIFI
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    RFID UHF 860-960 MHz Mid-range 5M Reader Writer EP... SKU : HY101
    Special Price US$79.84 Regular Price US$88.71
  31. NFC Lock Smart Nail Sticker Decal Christmas 3D Design for N2F Private Screen Protector N2M Simulate
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    NFC Lock Smart Nail Sticker Decal Christmas 3D Des... SKU : 32830830413
    Special Price US$3.19 Regular Price US$3.54
  32. 6pcs/lot NFC Tags Stickers Ntag213 13.56mhz Label Rfid Tag Card Adhesive Waterproof for Phones Samsu
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    6pcs/lot NFC Tags Stickers Ntag213 13.56mhz Label ... SKU : 32790227494
    Special Price US$1.16 Regular Price US$1.29
    Out of stock
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