Temperature & humidity measurement via Single Pair Ethernet
From sensor to the cloud

The Thermo-Hygrometer SPE is a measuring device that records temperatures and humidity and makes the values available via Single Pair Ethernet. The device can be connected to the W&T Cloud, send MQTT messages and send push notifications to smartphones.

Sensor:

• Temperature sensor:
  • Measuring range: -40°C...85°C
• Relative humidity sensor:
  • Measuring range 0..100% RH, permissible ambient: 0..95% (non-condensing)

Connectivity:

• Intuitive Web interface for simpler configuration
• Monitor temperatures, humidity and curves via browser
• Alarm and reporting function:
  • MQTT messages
  • Push notifications to a phone using ntfy.sh
  • Activation code for the W&T Cloud access included in scope of delivery
• Single value query:
  • Direct access to current measurement values via HTTP or TCP sockets.
• Current Industry 4.0 protocols:
  • MQTT support
• Possible applications:
  • Monitor temperature and humidity in the server room, network cabinet or office
  • Notifications when measured values exceed or fall below the limit
  • Green IT: Monitor efficiency of the server room climate control

Data logger:

• local, volatile data memory for two data
• Document measurement data online in the W&T Cloud and access from anywhere in the world

Standards & more

• optional: ISO factory calibration per DIN EN ISO/IEC 17025
  • with calibration certificate for verified documentation of the measured value deviations
  • Valid for 12 months
• optional: DAkkS/DKD calibration per DIN EN ISO/IEC 17025
  • with calibration certificate for verified traceability to national standards
  • Valid for 12 months
• Conforms to standards both in office and industrial environments:
  • High noise resistance per EN 61000-6-2
  • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
• 5 year guarantee

Connections and displays:

• Thermo-Hygrometer sensor:
  • Combined sensor for measuring temperature and relative humidity
• Single Pair Ethernet interface:
  • 10BaseT1L Full Duplex
  • Plug connector: IEC63171-2 IP20
  • SPoE connection Class 1
•  Power:
  • SPoE Class 1

Measuring unit:

• Measuring range:
  • -40°C...85°C, 0..100% rh
• Resolution:
  • 1/10 °C, 1/10% rH
• Measuring error:
  • Temperature:
  • typ. @ 25°C ±0.3°C
  • max. @ -40..85°C ±1.5°C
  • Relative humidity:
  • typ. @ -20..60°C (normal range) ±1.8%rH (10-90%rH)
  • max. @ -20..60°C (normal range) ±4%rH (0-100%rH)
  • temporary @ -40..85°C (max range) +3%rH nach 60h Operation outside normal range
  • Long-term stability typ. <0.5%rH / year
• Measuring frequency:
  • 1/second

Housing and other data:

• Housing:
  • Plastic housing length 187mm, diameter approx. 24.5mm
• Enclosure rating:
  • IP20
• Weight:
  • ca. 80g
• Ambient temperature
  • Storage: -40..+70°C
  • Operating: Non-contiguous mounting: 0 .. +60°C
  • contiguous mounting: 0 .. +50°C
• Permissible relative humidity:
  • 0..95% RH (non-condensing)
• Ambient operating temperature:
  • 0 .. +60°C
• Scope of delivery:
  • 1x Thermo/Hygrometer SPE
  • 1x Quick Guide