Wireless RH / Temperature Loggers / Outdoors HD35

  • Wireless monitors for RH/Temp
  • Easy Installation, low maintenance
  • Indoor and Outdoor Versions
  • Alarms
  • High Accuracy and Stability
  • Graphic LCD Display
  • Ideal for greenhouses, food environment, industrial, photovoltaics, agriculture...
  • Software included
  • Connect via WiFi , Ethernet or USB
  • CFR21
This product is part of wide range of sensors designed for networking via RF with WiFi or Ethernet connectivity. This page features a popular combined temperature and relative humidity sensor suitable for outdoor use where it is imperative to constantly monitor these parameters. Wireless system are easy to install and maintain and can be expanded as needed to suit your requirement. Call us for a custom quote or use the Inquiry form for this product

Features of Network Data Loggers

Specifications of Logger Units for Temperature and Relative Humidity Outdoor Transmitters

Measuring Range  
Sensor NTC10KΩ
  Temperature -40.0 ... +105.0 °C
    Resolution : 0.1 °C at nominal temperature = 25 °C
    Accuracy ± 0.3 °C in the range 0…+70 °C / ± 0.4 °C outside
    Stability 0.1 °C/year
Sensor Capacitive
  Relative Humidity 0-100% RH
    Resolution 0.1%
    Accuracy ± 1.8 %RH (0…85 %RH) / ± 2.5 %RH (85…100 %RH) @ T=15…35 °C
± (2 + 1.5% measure)% @ T=remaining range
Calculated parameters dew point, wet bulb temperature, absolute humidity, mixing ratio, partial vapour pressure.
Display Graphic LCD or No LCD
Alarm Internal acoustic buzzer
Status Indicators LEDs Communications status, alarm condition
Recording Interval 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 m
logging and transmitting interval 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 m
Internal Memory Circular management or stop logging when full, 24000 samples
Stored parameters T, RH, Dew Pt, Wet bulb, AH, Mixing Ratio, Partial Vapour Pressure
Radio Frequency 902-928 Mhz
Transmitting Range with internal antenna 180m (196 yds) with external antenna 500m (546 yds)
Interface WiFi, Ethernet or USB via base unit
Working Temperature -20 ... +70 °C
Battery 3.6V non-rechargeable Li-SOCl2 battery
Battery service life ~ 2 years (if recording interval is 30 seconds.)
Housing Polycarbonate, IP67

Ordering information

Model Description Price Guide
DO HD35EWINTV RH Temperature outdoor unit fixed probe with LCD Display, internal antenna $470.00
DO HD35APW Base station for WIFI, USB connection to computer, software included $599.00
  Call to get a custom quote and help with configuration, options include external antenna, solar shield, mounting hardware, with or without LCD