Temperature / Relative Humidity Probe
TRH-100 Temperature & RH Probe
Connects directly to any XR440 or XR5-SE Data Logger. No external power required.
Uses two input channels, one for temperature (dry bulb) and one for % RH, Wet Bulb, or Dew Point (software selectable). May also be used with other data acquisition systems, see electrical specifications for details.
- High Accuracy
- Long Term Stability
- Wide Temperature Range
Connect up to two (2) Temperature / RH Probes to the XR440 Data Logger
Connect up to four (4) Temperature / RH Probes to the XR5-SE Data Logger
Specifications, TRH-100 Temp & RH Probe
| RH Accuracy | ±3% RH from 0 to 95% RH |
| Stability | ±1% RH typ. at 50% RH in 5 years |
| Repeatability | ±0.5% RH |
Temperature Accuracy (using 12 bit mode if XR440) |
±0.15°C from 0 to 40°C (±0.27°F from 32 to 104°F) ±0.3°C from -25 to 85°C (±0.55°F from -13 to 185°F) |
| Temperature Sensor Interchangeability | ±0.1°C from 0 to 70°C |
| Physical | Rugged housing with sintered stainless steel filter. |
| Probe Size | 0.5" dia. x 2.5" long (13mm x 64mm) |
| Color code | Black: Ground White: 5 Vdc Power Green: RH Output (~1 to 4 V) Yellow or Red: Temperature (resistance) |
| Scaling: XR5-SE | Slope: 31.45 Offset: -23.83 |
| Scaling: XR440 | Lo Value: -23.83 Hi Value: 133.39 |
| Cable diameter | 0.165 inch (4.19 mm) |
| Cable conductors | 22 AWG stranded copper |
| Model with 1FT leads | 24 AWG stranded copper |
| Operating Temperature | -40 to 85°C* (-40 to 185°F)* |
*Continuous use above 70°C (158°F) in high humidity environments (above 70 % RH) is not recommended.
Available Models
| Part No. | Lead length | Price |
|---|---|---|
| TRH-100 | 1 ft (0.3 meter) leads | $205. |
| TRH-100-10FT | 10 ft (3 meter) shielded cable | $222. |
| TRH-100-20FT | 20 ft (6 meter) shielded cable | $238. |
| TRH-100-50FT | 50 ft (15 meter) shielded cable | $286. |
For using the TRH-100 with other data acquisition systems see TRH-100 Electrical Specifications.
The TRH-100 probe has a drift spec of less than 1% RH in 5 years. For calibration information, refer to re-calibrating the TRH-100 Probe.
Relative Humidity plug-in modules are available for the XR440 Data Logger. See TRH-200 and TRH-300.
Multi-channel Temperature Humidity Data Logging