WIKA Mobile Control GmbH & Co. KG


Standalone indicator for wireless anti-two block switches and windspeed sensors

Always connected!

The APEX SAI 33-W3 is a standalone indicator for use with the APEX HES-W3 wireless anti-two block (A2B) switches and APEX WSS-W3 wireless windspeed sensor. Up to two A2B switches and one windspeed sensor can be connected to a single APEX SAI 33-W3 indicator. The indicator can be configured to trigger a digital output when a hoist limit has been reached. Additionally, the A2B status and windspeed are shown on a graphical display. Configuration is done via user-interface on the indicator.

At a glance

  • FCC approval
  • Integrated wireless transmitter
  • Long transmission range (1,400m)
  • Frequency range: 902…928 MHz (USA)


Part number: 83903043
Power supply: 10V to 30V DC
Frequency range: 902 – 928 MHz modulation: OQPSK DSSS license-free
Antenna: 915 MHz RP-SMA
Antenna connection: RP-SMA
Range: 1400m (4539ft)
Electrical connection: M12 /4P male A-coded
Signal output: Up to 2 configurable digital outputs
Control elements: 1 pairing button, 4 LEDs, 5 push-buttons for system configuration via display

FCC conformity: N4TWMC915R1
ISEC ID: 3196A-WMC915R1
Dimension: 151,6 x 76,6 x 77,4 mm
Weight: 1 kg
Operating temperature range: -40°C...+70°C
Storage temperature range: -40°C...+85°C
Protection class: IP65

Application example

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