Isolator single channel
FSI-602-3C Four Wire Dual Channel Signal Isolator
April 18, 2024
wireless temperaature management system for food and pharmaccy vaccine fridge monitoring
Temperature Management System With WiFi
May 8, 2024
Show all

WTX-275-EXT Wireless Temperature Transmitter with Extended Range.

$299.00 exc GST


The WTX-275-EXT  is a state of the art 915 MHz wireless temperature transmitter with extended range due to its external antenna. It has been designed for a wide range of applications especially in the food industry. It has been designed to go directly into fridges and freezers as well as having an external jack plug to accept Pt100 sensors. It can be deployed adjacent to the point of measurement where this is required, such as measuring tank temperatures and the temperature of water in pipes. The external antenna will increase the signal transmission strength by about 6dB, providing improved signal strength at the gateway and thus improving its range. It is intended for applications where it is likely the signal strength received at the gateway will be around -100 dBm to -110 dBm without the external antenna. It wwill improve the signal to around -93dBm to -103dBm, this extending the range substantially.

Connecting to the Hygeian Cloud Server

The WTX-275-EXT, its associated internal antenna version WTX-275 and the SPX-100 Food Probe all connect to the Hygeian Server using the GW100 Gateways. GW-100-4G and GW-100-WiFi

The WTX-275-EXT purchase price includes the first year of its annual data subscription and a comprehensive warranty. The System is fully configured for you so there is no technical work required to get the system operating. An affordable annual subscription comes into effect on the first anniversary of the purchase.

For a further explanation watch this Hygeian Food Safety Management System video


WTX-275-EXT Wireless Temperature Transmitter Application Overview:

Here is an overview of the features offered by the WTX-275-EXT Wireless Temperature Transmitter with Extended Range.

  • Mounts directly into fridges and freezers using internal Class B (+/- 0.3oC) Pt100 sensor.
  • Solid construction, suitable for fridges and freezers.
  • The WTX-275-EXT mounts in a WTX-RCP magnetic receptacle.
  • Very easy to deploy. No tools required.
  • Powered by Lithium AAA batteries suitable for freezer temperatures.
  • No interruption to work area when deploying these transmitters.
  • Annaul exchange ensures:
    • your calibration certficates is always up to date.
    • the batteries are fresh.
  • External jack-plug to accept externally mounted 3 wire Pt100 sensors.
  • Internal dipole antenna.
  • Works with all GW-100 gateways.
  • Distance in building interior: up to 100m.
  • Distance in open line of sight: up to 500m.
  • Up to 120 WTX series transmitters can operate with one GW100 series gateway.
  • Purchase price includes:
    • First year’s data subscription
    • Calibration certificates
    • New batteries
    • Comprehensive warranty
    • 720 SMS messages for alarms
    • Unlimited email alarm messages
    • Full preconfiguration of System.
    • Full technical phone support from Hygeian and its distributors.



Here are the specifications of the WTX-275-EXT Wireless Temperature Transmitter with Extended Range.

  • Input 1: Internal Pt100 sensor class B +/-0.3oC
  • Input 2: 3-way jack socket suitable for Pt100 terminated in 3.5mm jack plug.
  • Range of measurement: -50oC to +250oC
  • Ambient range: -50oC to +85oC
  • Power: 3 x Lithium AAA cells.
  • Antenna: external dipole mounted on the enclosure.
  • Dimensions Transmitter:
    • Case 100mm(L) x 60mm (w) x 23mm (H)
    • Including antenna 153mm(L) x 60mm (w) x 23mm (H)
  • Dimensions Transmitter fitted in receptacle: 110mm(L) x 70mm (w) x 28.5mm (H)
  • Continuous Mode: 68ms packet once per minute.
  • Immediate Mode: 5 x 68ms packets one second apart.
  • Transmit indication: green led flash lasting 68ms.
  • Battery low indication: green led flashes continuously

For a complete understanding of the Hygeian System and its full capabilities click on this link.

The WTX-275-EXT transmits to the Hygeian Gateways. You require one WTX-275 or WTX-275-EXT for each location you wish to monitor.

  • GW-100-4G gateway with 4G internet connection and SIM card enabled
  • GW100-WiFi gateway with WiFi that must be configured to connect to the local WiFi network on site
Reviews 0


There are no reviews yet.

Be the first to review “WTX-275-EXT Wireless Temperature Transmitter with Extended Range.”