Wireless Recording System

Wireless Module WM-014 /
Wireless Controller WM-111

1. Connect the load cell. 2. Insert the batteries. That’s all.
Wireless data acquisition with no pairing or configuration required. 

Easily achieve long-term, unattended measurement of anchor loads and data collection from remote locations. Simply connect a load cell to start interval measurements—no complex setup is needed. Battery operation supports long-term measurement for approximately one year. 
Data is stored in the built-in memory and can be received and managed on a PC using the WM-111. Data can also be checked on site using the unit’s display and an SD card. 

Wireless Module WM-014 / Wireless Controller WM-111
Features
  • One load cell can be measured with a single unit. 
  • Compact and lightweight design, ideal for field installation. 
  • Uses 920 MHz low-power wireless communication, enabling safe data collection from outside the work area, such as on a slope, or from inside a parked vehicle. 
  • No complicated settings for interval measurement or wireless communication are required. Simply connect the power supply and load cell to start operation. 
  • Operates on four AA alkaline batteries, enabling approximately one year of automatic measurement. 
    Built-in memory stores up to seven years of measurement data. 
  • Measurement data can be checked directly on the unit using the built-in monitor or SD card. 
  • Built-in temperature sensor enables simultaneous monitoring of the ambient temperature. 
  • Optional storage boxes and a solar power supply system can reduce maintenance and battery replacement work. 

  • Specifications — Wireless Module WM-014

    Strain Measurement

    Number of measurement points 1 point
    Applicable transducer Strain-gage type transducer (full bridge)
    Bridge excitation DC1V
    Applicable gauge resistance 120 to 1000Ω
    Measurement range ±30,000 × 10⁻⁶ strain (including initial unbalance) 
    Measurement mode Direct 

    Wireless Communication 

    Wireless specification 920 MHz low-power wireless communication 
    Line-of-Sight Range*1 Approx. 500 m

    Interval Timer

    Function Measurement at 1-hour intervals

    Data Recording

    Built-in memory Function Recording and retrieval of measurement data 
    Capacity Up to 7 years of data
    SD card Function Recording of measurement data
    Recording format CSV format
    Capacity 512 MB

    Display and Operation

    Display 128 × 64-dot OLED display 
    Operation 

    Key switches: △, ▽, ENT, MENU, MONI, ESC
    Monitoring / settings
    Measurement values, radio signal level, battery voltage, clock, settings, etc. 

    Internal Power Supply (Batteries)

    Batteries 4 AA alkaline batteries 
    Battery life*2 Approx. 1 year (at 23 ± 5°C, with a 350 Ω bridge connected) 

    External Power Supply (Terminal Block)

    Supply voltage range 9 - 18 V (DC) 

    Environmental Conditions

    Operating temperature and humidity range

    −20 to +60°C
    85% RH or less (non-condensing) 

    Other

    Dimensions 80 (W) × 36 (H) × 159 (D) mm (excluding protrusions) 
    Weight Approx. 400 g (including batteries)

    Standard Accessories

    Antenna  1
    Instruction manual (A3, folded) 1
    AA alkaline batteries 8 (4 installed in the unit) 
    Warranty 1 

    Options

    SD card 512 MB
    Concrete Surface-Mount Enclosure *3  WBOX-001
    Single-Pipe Mount Enclosure*3  WBOX-002
    Solar Power System for WM Series*3  WSOLAR-001
    *1 
         		 Communication range may be significantly reduced depending on installation height and surrounding environment.
    *2 
         		 Battery life may be shortened depending on ambient temperature and data retrieval frequency. For long-term measurements of one year or more, use an external power supply.
    *3 
         		 Accessories for the enclosure and solar power system are subject to change without notice due to specification changes.

     

  • Specifications — Wireless Controller WM-111

    Wireless Communication

    Wireless specification 920 MHz low-power wireless communication 
    Line-of-Sight Range*1 Approx. 500 m

    Interface 

    Interface USB 2.0 protocol-compatible Type-C receptacle 
    Function Configuration and data collection 

    Power Supply 

    Power supply USB bus powered from a PC (5.0 V DC, Max. 50 mA)  

    Environmental Conditions

    Operating temperature and humidity range −20 to +60°C
    85% RH or less (non-condensing) 

    Other

    Dimensions 40.3 (W) × 20 (H) × 80.3 (D) mm (excluding protrusions) 
    Weight Approx. 45 g 

    Standard Accessories 

    Antenna 1

    Software CD (WM-7111 and instruction manual) 

    		 1 
    USB cable (CR-6189 / Type-C to Type-A)  1
    Warranty 1 
    *1 
         		 Communication range may be significantly reduced depending on the installation height and surrounding environment. 

     

System Block Diagram

systemblock_WM

Installation Examples

Concrete Surface-Mount Enclosure   WBOX-001

wbox001

 

Solar Power System for WM Series WSOLAR-001 Single-Pipe Mount Enclosure WBOX-002


wbox002_wsolar

 

The enclosure comes with mounting brackets pre-installed on the back and includes a complete set of components such as protective tubing and tubing connectors. However, installation materials such as anchor bolts and steel pipes are not included. 

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