WT440H Wireless Thermo Transmitter

UPM Legacy Stock • Replacement parts • Limited quantities

WT440H Weather Station Transmitter (replacement outdoor sensor)

WT440H Weather Station Transmitter

Replacement outdoor transmitter for older weather-station systems that originally used a WT440H. Keep your existing receiver/display in service — only if compatible.

  • Replacement transmitter for WT440H-based systems
  • Outdoor sensing for compatible weather-station receivers
  • Clearance inventory (legacy stock) • documentation-based support

Best practice: confirm compatibility before ordering to avoid mismatch.

EU / International orders:
Please check compatibility first and include your country/city. We’ll confirm match + the best available shipping option before you purchase.

Compatibility — please read before ordering

WT440H works only with receivers/weather stations that are specifically compatible with WT440H transmitters.

  • Confirm “WT440H” appears on your old transmitter label, receiver label, or the original manual.
  • If your old unit has channel / DIP settings, match the same settings on the replacement.
  • Not for Wi-Fi / Bluetooth app systems unless they explicitly support WT440H-type RF sensors.