DT284 Digital Duct Mount Relative Humidity and Temperature Transmitter
The DT284 relative humidity transmitter uses the Hygrosmart module, integrated in the interchangeable probe. This device can be used in high-temperature applications due to the remote placing of the measurement element and its small overall size.







Product Features

  • 12mm probe diameter
  • Analogue and digital output standard
  • Interchangeable probe
  • Analogue output signals selectable through software
  • Metric or US measurement units selectable through software
  • Can withstand temperatures up to 140°C
DT284

Technical Specification
Performance
Measurement Range (RH) 0-100% RH
Measurement Range (T) -30 to +140°C
Accuracy at 23°C
Humidity		 <±2% RH (5–95% RH)
Accuracy at 23°C
Temperature		 ±0.4°C
Stability - RH Sensor <±1% RH/year
Response Time – RH Sensor <10 sec typical (for 90% of the step change)
Electrical output/input
Output Signal 0–1, 0–5, 0–10 V
0–20 mA, 4–20 mA, RS485
Supply Voltage 15 - 27 V AC / 18 - 38 V DC
Load Resistance Current output: R ≤ 500Ω
Power Consumption 1.7 W
Operating conditions
Operating Temperature
   Probe
   Housing
   Storage
-30 to +140°C
-30 to +70°C
-40 to +70°C
Mechanical specification
Ingress Protection Sensor IP67
Material
   Housing
   Probe
Aluminium die casting
Stainless steel
Dimensions
   Housing
   Probe
120 x 120 x 49.5mm
L=250/500mm, ø12mm
Weight 450g
Electrical Connections Screw terminals