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Ideal for environmental temperature and relative humidity acquisition, this sensor features a 2-layer filter that protects against dust, soot, and other contaminants. Moreover, this calibratable ±0.54°F (±0.3°C) accuracy sensor operates with the instrument in virtual COM port mode, and the USB port makes it usable in minutes.
Ideal for environmental temperature and relative humidity acquisition, this sensor features a 2-layer filter that protects against dust, soot, and other contaminants. Moreover, this calibratable ±0.54°F (±0.3°C) accuracy sensor operates with the instrument in virtual COM port mode, and the USB port makes it usable in minutes.
The TRH320, a member of the TRH series, is a USB sensor designed for environmental temperature and relative humidity measurements. With a probe operating range from -40 to 158°F (-40 to 70°C) and an accuracy of ±0.54°F (±0.3°C) from 68 to 140°F (20 to 60°C) for temperature, as well as an accuracy of ±2.0% RH (0 to 80% RH) at 77°F (25°C) for relative humidity, it offers high precision for various applications. Its compact probe is equipped with an integrated filtration membrane for additional protection against dust. Powered by USB, it can be used in a relative humidity range of 0 to 100% RH, with a resolution of 0.027°F (0.015°C) for temperature and 0.01% RH for relative humidity. Its 1-meter USB cable provides excellent installation flexibility.
Like all Dracal measurement instruments, the TRH320 is compatible with free software tools, making it an essential component of a DAQ solution. For those who wish to integrate the TRH320 into their system, there are two options available: command line tools and VCP mode. If you prefer a graphical interface, DracalView is the appropriate choice.
Features
Applications
| Temperature | |
| Operating Range | -40 to 158°F (-40 to 70°C) maximum |
| Accuracy | -40 to 158°F (-40 to 70°C): Typ.: ±0.54°F (±0.3°C) Maximum: ±0.72°F (±0.4°C) -40 to 32°F (-40 to 0°C): Typ.: ±0.54°F (±0.3°C) Maximum: ±0.72°F (±0.4°C) 32 to 158°F (0 to 70°C): Typ.: ±0.36°F (±0.2°C) Maximum: ±0.72°F (±0.4°C) |
| Resolution | Typ.: 0.018°F (0.01°C) |
| Repeatability | Typ.: 0.108°F (0.06°C) |
| Response Time | t63%: 10s |
| Factory Calibrated | Yes, individually |
| Relative Humidity | |
| Operating Range | 0 to 100% RH, non-condensing |
| Accuracy | 0 to 100% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±3.5% RH 0 to 90% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±2.5% RH 0 to 90% RH from 32 to 158°F (0 to 70°C): Typ.: ±2% RH Maximum: ±2.5% RH 90 to 100% RH from 32 to 158°F (0 to 70°C): Typ.: ±2% RH Maximum: ±3.5% RH |
| Resolution | Typ.: 0.01% RH |
| Hysteresis | At 77°F (25°C): 0.8% RH |
| Factory Calibrated | Yes, individually |
| Probe | |
| Filters | Material: Layer 1: Polyethylene terephthalate (PET) mesh Layer 2: PTFE membrane Efficiency: 99.99% for particle size ≥200 nm |
| Housing and USB cable | |
| Operating Range | Temperature: 32 to 158°F (0 to 70°C) Humidity: 10 to 90% RH, non condensing |
| Material | ABS |
| IP Rating | 51 |
| USB Cable Length | 3' (1 m) |
| General Specifications | |
| ADC Resolution | 16 bits |
| Long-Term Stability | Yes |
| Temperature Compensated | Yes, by the manufacturer |
| Lifetime | 5 years |
| Weight | 1.41 oz (40 g), without USB cable |
| Voltage | Powered through a USB port, 5 V |
| Current Consumption | ≤18 mA at 5V |
| Colour | Cyan |
| Temperature | |
| Operating Range | -40 to 158°F (-40 to 70°C) maximum |
| Accuracy | -40 to 158°F (-40 to 70°C): Typ.: ±0.54°F (±0.3°C) Maximum: ±0.72°F (±0.4°C) -40 to 32°F (-40 to 0°C): Typ.: ±0.54°F (±0.3°C) Maximum: ±0.72°F (±0.4°C) 32 to 158°F (0 to 70°C): Typ.: ±0.36°F (±0.2°C) Maximum: ±0.72°F (±0.4°C) |
| Resolution | Typ.: 0.018°F (0.01°C) |
| Repeatability | Typ.: 0.108°F (0.06°C) |
| Response Time | t63%: 10s |
| Factory Calibrated | Yes, individually |
| Relative Humidity | |
| Operating Range | 0 to 100% RH, non-condensing |
| Accuracy | 0 to 100% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±3.5% RH 0 to 90% RH at 77°F (25°C): Typ.: ±2% RH Maximum: ±2.5% RH 0 to 90% RH from 32 to 158°F (0 to 70°C): Typ.: ±2% RH Maximum: ±2.5% RH 90 to 100% RH from 32 to 158°F (0 to 70°C): Typ.: ±2% RH Maximum: ±3.5% RH |
| Resolution | Typ.: 0.01% RH |
| Hysteresis | At 77°F (25°C): 0.8% RH |
| Factory Calibrated | Yes, individually |
| Probe | |
| Filters | Material: Layer 1: Polyethylene terephthalate (PET) mesh Layer 2: PTFE membrane Efficiency: 99.99% for particle size ≥200 nm |
| Housing and USB cable | |
| Operating Range | Temperature: 32 to 158°F (0 to 70°C) Humidity: 10 to 90% RH, non condensing |
| Material | ABS |
| IP Rating | 51 |
| USB Cable Length | 3' (1 m) |
| General Specifications | |
| ADC Resolution | 16 bits |
| Long-Term Stability | Yes |
| Temperature Compensated | Yes, by the manufacturer |
| Lifetime | 5 years |
| Weight | 1.41 oz (40 g), without USB cable |
| Voltage | Powered through a USB port, 5 V |
| Current Consumption | ≤18 mA at 5V |
| Colour | Cyan |
