The HT1O Series is designed to be mounted on the building exterior to provide outside air RH measurement. The HT1O Series combines excellent stability with reliable operation in 2% or 3% RH accuracy options. Optional temperature transmitters, RTDs and thermistors add further flexibility when ordering. The standard LCD, gasketed lid and field replaceable elements make the initial installation and future service a breeze.
- Replaceable element is ideal for difficult environments such coastal areas or process control such as poultry farms
- Facilitating compliance with ASHRAE 62.1 standard for air quality
- Indoor air comfort and control in HVAC systems
- Maintain healthy air quality, minimize mold and other contaminants
- Design is ideal for greenhouse applications

Power Supply |
AC Supply/DC Supply |
24VAC, 100mA max./ 12-30VDC, 50mA max |
Outputs |
RH and Temperature) |
3-wire 0-5/10V(4) or 2-wire 4-20mA |
Output scaling |
RH |
0-100% RH |
Thermistor/RTD |
Optional |
See ordering table |
Media filter |
Sintered stainless steel |
|
Relative Humidity |
Accuracy |
2% models, ±2% over 0 to 100% RH Range; ±1.5% typ |
Temperature |
Accuracy |
2% models, <±0.25° C; 0.1° C typ @ 25° C |
Enclosure |
Materials |
ABS/Polycarbonate |
Agency |
Compliance |
CE, RoHS |
(1) One side of transformer,, secondary is connected to signal common. Dedicated transformer is recommended.
(2) Time for reaching 63% of reading at 25° C and 1 m/s airflow.
(3) Long term exposures to conditions outside normal range at high humidity may temporarily offset the RH reading (+3%RH after 60 hours.)
(4) 15-30VDC/24VAC power supply voltage required for 10 volt ouput.