Data Sheet

 User Manual


 Wireless Level Sensor Transmitter/Receiver Set

Non-contact Wireless Ultrasonic Level Sensor Transmitter and Analog Output Wireless Receiver

Wireless Remote Control Transmitter System
MODEL: WLV7389-24-SB


    Wireless Bridge Between Sensor & Instrument

    Ultrasonic Sensor with Narrow Beam Pattern

    500cm (16') Measurement Range

    Up To 1 Mile Line-of-site Max Distance

    Receiver Provides 4-20mA or 1-5V DC Output

    Powered By 12-24V DC Supply

    NEMA 4X Enclosure

    Pre-configured, Ready-To-Operate

    Sold As Sensor/Transmitter/Receiver Matched Set

    License Free Radio Operation


Bin, Tank or Pool Level Monitoring, Irrigation Systems, Process Control & Instrumentation, Snow Level Measurement


Model WLV7389-24-SB Wireless Ultrasonic Tank Level Transmitter provides a license free 2.4GHz wireless bridge between level sensor and process instrument at a distance up to 1 mile line-of-site (LOS). The sensor/wireless transmitter combination accomplishes tank level measurement by providing a 4-20mA current or 1-5V DC voltage output on the wireless receiver side that corresponds to distance measured by the sensor. Connect the receiver output to a process meter or PLC to control a pump, valve or alarm unit.

wireless level transmitter

Sensor Specifications
Sensor Frequency: 42kHz
Sensor Read Rate: 6.66Hz
Measurement Distance/Beam Pattern: 500cn (16') Narrow
Operating Temperature: -40 to 149 F (-40 to 65 C)
wireless remote control switch relay wireless remote control switch relay
Measurement Distance/Beam Pattern              Antennas & Extension Cables Included

General Transmitter/Receiver Specifications
Radio Frequency: ISM 2.4GHz
Regulatory: FCC Part 95 (No license required)
Transmitter/Receiver Code Matching: Factory set
Antenna Connection: RP-SMA
Wiring Connection: Terminal Blocks
Transmit/Receive Distance
(with included antennas):
Indoor/Urban 100ft, Line-of-site 600ft
Transmit/Receive Distance
(with optional antennas):
Indoor/Urban 300ft, Line-of-site 1 Mile
Operating Temperature: -22 to 113 F (-30 to 45 C)
Antennas: 5dbi, Omni-directional (Included)

Transmitter Specifications
Input Signal: Ultrasonic Level Sensor
RF Power Output: 63mW
RF Data Rate: 250 kbps
RF Output Impedance: 50 Ohm nominal
Enclosure: NEMA 4X PVC
Operating Power: 12 - 24V DC @ 2W max
wireless NEMA receiver wireless din-rail receiver wireless din-rail receiver
          NEMA 4X Receiver                 Din-rail Receiver             Industrial Receiver

Receiver Specifications
Receive Sensitivity: -100 dBm
RF Input Impedance: 50 Ohm nominal
Operating Power: 12 - 24V DC @ 3W max
Enclosure: NEMA 4X PCT Plastic, Din-rail or Painted Aluminum (See model numbers)
Analog Output: 4-20mA, 1-5VDC (Field Selectable)

Regulatory Approvals
Regulatory: FCC Part 95 (No license required)
IC (Canada): 4214A-XBEEPRO

Available Models
Model Number Description
WLV7389-24-SB-NB 16' (500cm) Distance Wireless Level Transmitter with Analog Output Receiver in NEMA Enclosure.
WLV7389-24-SB-DR 16' (500cm) Distance Wireless Level Transmitter with Analog Output Receiver in Din-rail Enclosure.
WLV7389-24-SB-ID 16' (500cm) Distance Wireless Level Transmitter with Analog Output Receiver in Industrial Enclosure.
Each Wireless Analog Transmitter/Receiver Set includes Sensor, Sensor Cable, 5dBi Antennas, 9'Antenna Extension Cables, Antenna Mounting Brackets and User Manual.

Note: Continued product improvements make specifications subject to change without notice.
This product is approved for use in North America.

Copyright © 2012– TM , Imagine Instruments LLC, All Rights Reserved.