433MHz High Power Transmitter


The TX2H is a 433.92MHz FM transmitter module with a power output of 25mW nominal. It is a 100% pin-compatible drop-in replacement for the Radiometrix TX2 and can be used to replace the TX2.

Download Product Spec



  • Standard frequencies: 433.92MHz and 434.42MHz
  • Hi power drop in replacement for TX2
  • Data rates up to 64kbps
  • Usable range over 500m
  • Fully screened
  • Low power requirements
  • Conforms to European EN 301 489-3 and ETSI EN 300 220-3 (for ERP @ 10mW)
  • Conforms to Australian/New Zealand AS/NZS 4268:2003


  • Handheld terminals
  • Data loggers
  • Industrial telemetry and telecommand
  • In-building environmental monitoring and control
  • High-end security and fire alarms
  • Vehicle data up/download

Technical Summary

  • Operating frequency: 433.92MHz and 434.42MHz
  • Supply : 3V or 5V regulated
  • Current consumption: 23mA typical
  • Transmit power: +14dBm (25mW)
  • Data bit rate: 64kbps max
  • Transmit power-up time: <4ms
  • Size: 32 x 12 x 5.5mm

Downloads & Datasheets

  1. Full Specs PDF