Wireless Data Transmitter Thermo-couple provides asset health data of key building assets such as lifts, escalators, HVAC systems, that work on the same RF network as the workplace sensors but have the capability to link with Building Management Systems (BMS) to provide real-time asset health data to prevent catastrophic failure.

SKU: WDTTHERM Category: Tag:


The WDTTHERM v1.0 PCB has lots of useful onboard features making it invaluable in a mass manufacturing environment. It has onboard humidity and temperature sensing, multiple power options and both thermocouple and analogue/digital inputs. The pcb can also be used to power up external equipment.

All the data it collects is sent via unlicensed radio for your convenient wireless harvesting from a suitable and convenient location within or nearby the building of interest.

Power Supply:

  1. PCB is powered by qty 3 ‘AA’ Alkaline batteries giving an expected lifespan of up to 3 years.
  2. PCB can also be powered by an external dc supply of between +5 and +24V applied to connector CON7.
    CON7 Pin 3 = +5V to +24V dc input
    CON7 Pin 4 = 0V
  3. PCB is powered while programming through the connector CON4.
    CON4 Pin 9 = 5V dc input
    CON4 Pin 1 = 0V
  4. Battery voltage is monitored through the software.
  5. +24V is available via a MOSFET to power up external equipment from CON7 pin 1 up to 2A.

Signal Inputs:

  1. Up to 5 Analogue signals can be presented to connectors PL1 to PL5.
    Pin 1 = +24V from external DC supply from CON7 pin 3
    Pin 2 = Analogue input 0 – 10V or Digital Input 0 – 20V
    Pin 3 = 0V or Ground
  2. Up to 5 K Type Thermocouples can be presented to connectors PL6 to PL10.
    Pin 1 = TC +
    Pin 2 = TC –
    Temperature range +0°C to + 700°C
    Error range = +/- 3°C
  3. The PCB has an onboard humidity sensor with the following specification:
    Temperature range +5°C to + 50°C (41°F to 122°F)
    Humidity range 10% RH to 90% RH
    Error range = +/- 5% RH
  4. The PCB has an onboard temperature sensor with the following specification:
    Temperature range +5°C to + 50°C (41°F to 122°F)
    Error range = +/- 1°C


  1. 1. The PCB has a 10mW onboard radio transmitting on the following unlicensed frequency bands:
    434MHz (optional)
  2. 2. There are Green and Blue LEDs that are used to indicate the status of the PCB or its software.