Monitor air quality Often CO₂ is measured in office buildings, schools, education and sports facilities for the purpose of need-based ventilation control . However, a drawback with CO₂ measurement is that VOC-induced odors are not detected as they have little or no effect on CO₂ measurements. Although there is a need for ventilation, this condition is not recognized by conventional technology. With this VOC measuring device, on the other hand, indoor air quality can be measured in relation to human perception.

More Information On VOC Can Be Found Here

Sensor:

• Temperature sensor:
  • Measuring range: -40 ° C ... 85 ° C
• Humidity Sensor:
  • Measuring range 0..100% RH, permissible ambient: 0..95% (non-condensing)
• Air quality sensor:
  • Measuring range 0..60000ppb TVOC

Connectivity:

• Configurable LED traffic light on the sensor for optical signaling of limit values
• Monitor temperatures and gradients via browser
• Alarm and reporting function:
  • E-mail for alerting or reporting
  • SNMP Queries / Alert Traps
  • Up to 12 alarm messages configurable
• Dynamic integration into other websites:
  • Direct access to current measured values, eg JavaScript (AJAX).
• Current Industry 4.0 protocols:
  • REST and MQTT support
• Other software interfaces for integration into your systems / databases:
  • OPC server
  • Syslog
  • Sensobase (database integration via ODBC)
  • TCP and UDP sockets, client and server
  • FTP (Datalogging)
• Applications:
  • Monitor temperatures in the server room, network cabinet or office
  • Direct display of several measuring points in the browser via Java applet
  • Logging of measured values ​​via FTP, Excel file, e-mail attachment and internal memory
  • Dew point measurement, climate control
  • Green IT: Monitor the efficiency of server room air conditioning

Data Logger:

• Internal datalogger
  • Memory size: min. 7 weeks, max. 20 years
  • Memory frequency: 15s, 30s, 1m, 5m, 15m, 60m
• Document measurement data online in the W & T Cloud and access it worldwide
• Internal clock
  • Time synchronization via time server synchronization
  • Battery-backed device clock

Standards & Co .:

• optional: ISO factory calibration according to DIN EN ISO / IEC 17025
  • with calibration certificate for clear documentation of the measured value deviations
  • Validity 12 months
• optional: DAkkS / DKD calibration according to DIN EN ISO / IEC 17025
  • with calibration certificate for clear traceability to national standards
  • Validity 12 months
• Power supply via Power over Ethernet (PoE)
  • Phantom power via data pairs
  • Supply via unused wire pairs
  • alternatively external supply via power supply possible
• Standard compliance in both office and industrial environments:
  • high interference immunity for industrial environment
  • low emissions for residential and business areas
• 5 years warranty

Teknical Data

Connections and displays:
Combined sensor:		Temperature, humidity, air quality measurement DB9 connection cable Cable length: 2m (can be extended to a maximum of 20m)
Network:		10 / 100BaseT Autosensing / Auto-MDIX RJ45 IPv6 on request
Galvanic separation:		Network connection min. 1500 volts
Supply voltage:		Power over Ethernet (PoE) or DC 12V .. 48V (+/- 10%)
Power supply:		Plug-in screw terminal, 5.08mm grid lettering "L +" and "M"
Current consumption:		PoE Class 1 (0.44 - 3.84W) typ. 60mA @ 24V DC with external supply
Show:		1 LED Power 2 LEDs Network Status 4 LEDs Status and Error 3 LEDs Traffic light in the sensor
Measuring unit:
Measuring range:		0 ° C..85 ° C, 5..95% RH, 0-60000ppb TVOC
Resolution:		1/10 ° C, 1/10% rh, 1 / 10ppb TVOC
Air Quality Sensor:		TVOC based on ethanol
Measurement error:		Temperature:
		typ. @ 25 ° C ± 0.3 ° C max. @ 0..50 ° C ± 0.7 ° C Long-term stability: typ.
		Humidity:
		typ. @ 25 ° C ± 2% rH max. @ 0..50 ° C ± 4% rH (0-100% rH) Long-term stability: typ. <0.25% rH / year
		Luftqualität:
		typ. @ 25 ° C ± 15% of the measured value max. ± 40% of the measured value Long-term stability: typ. <1.3% of the measured value
Measuring frequency:		4s
Memory frequency:		15s, 30s, 1m, 5m, 15m, 60m
Memory depth (4MB):		minute 7 weeks, max. 20 years
Housing and other data:
Casing:		Plastic small housing for DIN rail mounting 105x22x75mm (lxwxh)
Protection class:		IP20
Mass:		about 200g
Ambient temperature		Storage: -40 .. + 70 ° C
		Operation: unspecified installation: 0 .. + 60 ° C connected installation: 0 .. + 50 ° C
Permissible humidity:		0..95% relative humidity (non-condensing)
Delivery:		1x Web-Thermometer Air Quality for DIN rail mounting 1x W & T sensor, 2m (temperature / humidity & TVOC) 1x quick start guide

Technical Data

Connections and displays:

• Combined sensor:
  • Temperature, relative humidity, air quality measurement
  • DB9 receptacle
  • Cable length: 2m (can be extended to max. 7m)
• Network:
  • 10/100BaseT Autosensing/Auto-MDIX
  • RJ45
  • IPv6 on request
• Galvanic isolation:
  • Network connection min. 1500 V
• Supply voltage:
  • Power-over-Ethernet (PoE) or
  • DC 12V .. 48V (+/-10%)
• Supply connection:
  • Plug-in screw terminal, 5.08mm spacing
  • Labeled "L+" and "M"
• Current consumption:
  • PoE Class 1 (0.44 - 3.84W)
  • typ. 60mA @24V DC with external supply
• Indicators:
  • 1 LED power
  • 2 LEDs network status
  • 4 LEDs status and error
  • 3 LEDs traffic-light display in sensor

Measuring unit:

• Measuring range:
  • 0°C..85°C, 5..95% RH, 0-60,000 ppb TVOC
• Resolution:
  • 1/10 °C, 1/10% RH, 1/10 ppb TVOC
• Display variables:
  • °Celsius, °Fahrenheit, °Kelvin, %relative humidity, abs. humidity g/m³, dew point °C, mixing ratio g/kg, enthalpy kJ/kg
• Air quality sensor:
  • TVOC based on ethanol
• Measuring error:
  • Temperature:
  • typ. @ 25°C ±0.3°C
  • max. @ 0..50°C ±0.7°C
  • Long-term stability: typ. <0.03°C / year
  • Relative humidity:
  • typ. @ 25°C ±2% RH
  • max. @ 0..50°C ±4% RH (0-100% RH)
  • Long-term stability: typ. <0.25% RH / year
  • Air quality:
  • typ. @ 25°C ±15% of the measured value
  • max. ±40% of the measured value
  • Long-term stability: typ. <1.3% of the measured value
• Measuring frequency:
  • 4s
• Storage frequency:
  • 15s, 30s, 1m, 5m, 15m, 60m
• Memory depth (4MB):
  • min. 7 weeks, max. 20 years

Housing and other data:

• Housing:
  • Plastic compact housing for top-hat rail mount
  • 105x22x75mm (LxWxH)
• Enclosure rating:
  • IP20
• Weight:
  • approx. 200g
• 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)
• Scope of delivery:
  • 1x Web-Thermometer Air Quality for DIN rail mounting
  • 1x W&T sensor, 2m (temperature/humidity & TVOC)
  • 1x Quick Guide

This item has been replaced by model#57721

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