The Vaisala HMP155A is a high-performance probe designed for precise and dependable relative humidity and air temperature measurements across demanding environmental conditions. It employs the advanced HUMICAP®180R capacitive thin-film polymer sensor to deliver stable RH readings over the full 0 to 100% range, while a precision platinum resistance thermometer (PRT) ensures accurate temperature measurement from −80 °C to +60 °C.
Specifications
| Electromagnetic Compatibility | Complies with EMC standard EN61326-1 Electromagnetic |
| Filter Description | Sintered PTFE |
| Housing Body Material | PC |
| Housing Classification | IP66 |
| Voltage Output | 0 to 1 Vdc |
| Average Current Consumption | ≤ 3 mA (analog output mode) |
| Operating Voltage | 7 to 28 Vdc |
| Settling Time | 2 s (at power up) |
| Field-Replaceable Chip or Recalibrate | Recalibrate |
| Tip Diameter | 1.2 cm (0.5 in.) |
| Length | 27.9 cm (11 in.) |
| Head Height | 4 cm (1.6 in.) |
| Body Height | 2.4 cm (0.9 in.) |
| Body Width | 2.0 cm (0.8 in.) |
Environmental Research
Meteorological Stations
Hydrological Networks
Industrial Monitoring
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