The MultiSensor family provides a very low cost solution for the need to monitor, measure, record and alarm, remote parameters. MultiSensors are not designed for high degrees of accuracy, but are intended more as relative indicators of the conditions they monitor. The enclosures are not weather proof; they are intended for indoor use and to protect the electronics from coming in contact with external items that might cause failure or damage. With the exception of
MS-T, all MultiSensor products measure temperature and one additional parameter.
In addition to temperature measurement, the MS-TH will measure relative humidity. The device used for humidity sensing is a Honeywell part, number HIH-4000. The linearity from 0% to 100% humidity is ±0.5%. Accuracy with +5 Vcc is 5-8% over the full range at 25 degrees C. Response time in slow moving air is typically 30 seconds. The Vcc supply must be sustained above 4 VDC, with 5 VDC being optimal.
When using a
Link45, humidity will be reported in the range of 0.8 VDC (zero percent humidity) to 4.07 VDC (100% humidity). When using a
LinkTH, the readings will be converted to % humidity.
