Wireless 4-20mA Analog Transmitter & Receiver with Digital Panel Meter - Up To 6 Miles

  • $839.00
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Wireless 4-20 mA Analog Transmitter & Receiver with Digital Panel Meter - Up To 6 Miles

Series: WAPM-900

Note: The standard antennas included with this model allow for a maximum line-of-site (LOS) distance of 1600 ft. For greater distances up to 6 miles you will need the long distance antenna option. Order optional antennas model DRWC-900-LRANT.


  • Provides Wireless Bridge for 4-20 mA Signal
  • Receiver Output Mirrors Transmitter Input
  • Digital Panel Meter on One or Both Sides
  • Panel Meter Provides Dual Programmable Alarm Relays
  • Auxiliary 24V DC Power Supply to Power Sensors
  • Receiver Provides 4-20mA or 1-5V DC Output
  • Up To 6 Miles Clear Line-of-site Operation
  • Adds Wireless Capability to Any Existing System
  • 120V AC or 24V DC Operation
  • NEMA 4X PVC Enclosures with Clear Lid
  • Sold As Transmitter/Receiver Matched Set
  • License Free Point-to-point Radio Operation


  • Process Transmitter Signals
  • Valve Positioning & Control
  • Remote Sensor Monitoring


The WAPM-900 Wireless Analog 4-20mA Transmitter/Receiver System allows for remotely monitoring or controlling equipment from a distance up to 6 miles away using license free wireless radio communication. Each set features one 4-20mA analog signal input on the Transmitter, and one mirrored 4-20mA analog signal output on the Receiver. A programmable Digital Panel Meter with dual alarms is included on either the Transmitter side, receiver side, or both. Each system is sold as a factory programmed matched set. 

General System Specifications

Operating Temperature: -22 to 113 ºF (-30 to 45 ºC)
Enclosures: PCT/PVC, NEMA 4, 4X

General Wireless Specifications

Radio Frequency: 900 MHz
Transmitter/Receiver Code Matching: Factory set
Antenna Connection: RP-SMA
Wiring Connection: Terminal Blocks
Transmit/Receive Distance
with included antennas: Indoor/Urban 1000’, Line-of-site 3 Miles.
with optional antennas: Indoor/Urban 1600’, Line-of-site 6 Miles.
Antennas: 7dbi, Omni-directional (Included)

Transmitter Specifications

RF Power Output: 250mW
RF Output Impedance: 50 Ohm nominal
RF Data Rate: 10 kbps
Operating Power (without Panel Meter): 12 - 24V DC @ 3W max    
Operating Power (with Panel Meter): 90-240V AC @ 6W max
Process Input: Analog 4-20mA

Receiver Specifications

Receive Sensitivity: -110 dBm
Operating Power (without Panel Meter): 12 - 24V DC @ 3W max   
Operating Power (with Panel Meter): 90-240V AC @ 6W max
Process Output: Analog 4-20mA or 1-5V DC

Regulatory: FCC Part 15 (No license required)

IC (Canada) - 1846A-XB900HP

Panel Meter Specifications

Power Supply: 90~265V AC/DC 
Auxiliary Power Supply: DC 24V
Accuracy: 0.3%F.S±2dgt
Sampling Rate: ≤8 times/second
Alarm: Relay: Normal Open AC 250V/3A or DC 30V/3A
Auxiliary Analog Output: 4~20mA