WTD814P Wifi Modbus TCP - 4-Ch RTD Temperature Input

WTD814P Wifi Modbus TCP - 4-Ch RTD Temperature Input
Our Price:  £209.00(£250.80 Inc. VAT)

Digital Outputs:  2
Temperature Inputs:  4



Special order, 7-10 days

The WTD814P is a Wifi Modbus TCP temperature input unit accepting 4 PT100 or PT1000 RTD's in 2, 3 or 4-wire configurations. Part of a no-frills industrial range featuring 3-way isolation, DIN rail mount with the ability to stack modules one on top of another, watchdog with settable output state condition on comms fail. Compatible with all SCADA software talking Modbus/TCP

Special Offer:  Discounts of 7%, 10%, 12.5% and 15% are available when you order 10, 25, 50 and 100 items or more of this product.

  • 4 isolated, PT100 or PT1000 resistance thermometer inputs
    • 2-wire, 3-wire or 4-wire configurations
    • -200° to 400° measurement range
    • Accuracy: ±0.05%
    • ADC Resolution: 24-bit, 0.1°C resolution
  • 2-Channel open-drain digital outputs, 30V @ 30mA
  • Wifi 802.11b, 802.11g, 802.11n
  • Access Point or Station Modes
  • Typical Range: 100m line of sight
  • Protocol - Modbus/TCP
  • LED Indicators for Power, Status, Comms
  • Watchdog
  • 3-way Isolation between Power Supply and IO
  • Operating Temperature: - 20 to 70º C
  • Power: 10 to 48VDC
  • Stub antenna included via standard SMA connector
  • DIN Rail mount - stackable
  • Dimensions - 98mm x 106mm x 47mm


The WTD8XXX series are a series of I/O data acquisition and control modules based on wireless Wi-Fi using the Modbus TCP communication protocol.
They can connect to a SCADA system, HMI or mobile phone directly or via a wireless Wi-Fi router or wireless AP. Users can access the configuration interface and operate the monitoring function via any web browser or by using the WTDUtility.


Flush mounted or fitted to a a standard DIN rail, multiple units can be stacked on on top of each other to provide a compact installation.


A watchdog timer can force outputs to preset states on LAN fail (can be disabled)


Industrial grade isolation between the Power supply, IO and Ethernet port

Included Software

The unit is configured using the free WTDUtility Software. This can be used to set the units' IP address and to set the input ranges.


Optional Software


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User Manual >>

WTDUtility Software >>