CHIAYO IRX2 User Manual
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Handheld/Pendant IR Transmitter IWH-401
Parts and functions
1. Cartridge screen.
2. Infrared emitter. IR ray radiates from here. Do not block or hold this part of the body.
3. Anti-rolling color ring.
4. Status LED: Bicolor LED will glow when switch is put to ON.
Green: Battery is full and transmitter is in normal mode.
Red: Battery is weak and will shut off soon. Please charge the battery.
5. Power switch: Slide to turn transmitter on or off.
6. Battery compartment. Turn the battery cover counterclockwise and pull out. Make sure the
transmitter is turned off when installing or replacing batteries. Install the new battery
according to its correct polarity. IWH-401 uses only 1 AA battery to operate.
7. Channel selector. Channel A: 2.08MHz, Channel B: 2.54MHz
8. Sensitivity control. Clockwise to increase sensitivity level. Factory preset is max level.
9. Charging contact, workable with HC-40 (single-unit) / HC-402 (dual-unit) charger.
Please note: This transmitter has a unique inbuilt safety feature to protect from
overcharging the battery. It incorporates a special charging function enabled when 1cm of
the PVC cover of the battery’s negative end is removed by 1cm. Any rechargeable batteries
used must be used this way for safe charging.
10. Pendant holder. Place IWH-401 through this holder and it can be used as a pendant
transmitter.
Battery installation/charging
Unscrew the battery cover and install 1 AA battery. Please make sure the battery type is
rechargeable if it's to be used with the charger. It can be charged without being removed from
the transmitter. If the transmitter is to be left unused for a long period of time, please remove
the battery until next use.
One Alkaline battery or 1cm-
negative-peeled AA NiMH battery
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