SH-200 and SH22 ODU Technical Specifications

Base Unit SH-200

  • 16 bit resolution recording with background noise reduction 
  • Playback mp3 sound quality
  • THD <2%
  • Up to 10 minutes total recording time 
  • Non-volatile memory
  • Support wav and mp3 audio file input for programming
  • Digital volume control during playback 
  • Auto Increase playback volume with ambience noise detect 
  • D-class amplifier
  • Waterproof 66mm speaker
  • Maximum Speaker output 1.2W
  • FSK transceiver 
  • Build in circular polarized antenna
  • Range 3 -10m 
  • Super bright Camera flash LED indicator
  • Power/Charge/Battery low LED indicator
  • 4x AA 2100mAH NiMH rechargeable battery pack (optional)
  • Stand by time up to 28 days (with battery)
  • Continue work time up to 36 hours with 10 minutes play back per hour (with battery)
  • Built in  AC100-240V.DC9V/500mA switching power supply (for SH-200 model only)
  • Smart charger with – delta V full charge detect 
  • FR-4 94V0 PCB
  • PC matte plastic housing
  • Waterproof IP56
  • Safe screw mount
  • Frequency: 433.5MHz,Power output at max transmission:15dBm (equivalent to 0.0316mWatt)
  • Frequency: 868.3MHz,Power output at max transmission:12dBm (equivalent to 0.063mWatt)


Activator (SH-220)

  • Microprocessor control
  • FSK transceiver
  • Frequency band: 434MHz
  • Vibrator or buzzer alarm 
  • Activator is worn either as a neck pendant, key ring or on a watch strap
  • Four buttons on Activator: Power, ANN 1. ANN 2, ANN3
  • Announcements are triggered by a signal from a 434MHz portable transmitter
  • Beep loudness: >85dBA@10cm
  • Li-polymer Rechargeable battery
  • Operating current consumption:
  • Stand by time up to 120 hours
  • Activator battery will be used up after 5 hours continued operating with vibrator and beep on
  • Charger include


Approved Standards:



ETL, cETL (SH-200)

UL, cUL (SH-220)

RoHs compliant

WEEE compliant