The RT42 hand transmitter is a wireless transmitter which transmits the secwave code at the push of a button, and activates the secwave wireless receiver according to the selected mode.

The transmitter has a battery control function which checks the battery capacity. If the battery capacity is low, the LED flashes after the transmitter button is released.

Technical specifications
Coding factory coding with secwave telegram
AES 128-bit encryption
Not compatible with Easywave products!
Frequency 868,30 MHz
Channels 4
Range typically 150 m in good free-field conditions
Power supply 1x 3V battery, CR2032
Operating indicator LED
Operation transmission starts as soon as button is pressed
Function depends on the receiver (see Models)
Operating temperature -20 °C to +60 °C
Dimensions 37 x 61,5 x 10,7 mm
Weight 30 g (including battery)
Color black similar to RAL 9005
Scope of delivery
  • Hand transmitter including battery
  • Operating manual
Product numbers Description Function
RT42S5004A01-21K Hand transmitter secwave 868 MHz 4-channel black with metal bracket 4x PULSE