| The SHT-9 C4 allows the controlling 4 functions. A LED displays the transmit activity.
Also, a red LED indicates when the battery is low. In this case, it sends a signal to the receiver, so that in the SHR-9 K4, for example, it can trigger an alarm or perform a protective shut off.
Case color: dark grey
Figure: SHT-9 C4
For use in humid or dirty surroundings, the SHT-9 C4D version is available. It is resistant against dust and water splashes. A ridged gasket and a key foil cover protect the circuitry when used in rough surrounding conditions. |
