Vaisala CWL100 Wireless Data Logger


  • Optional magnetic mounting bracket available
  • Uses standard alkaline batteries
  • Typical battery life of 18 months
  • Reliable >100 m (approx. 330 ft) wireless range utilizing LoRa™ radio technology
  • Detachable high-accuracy relative humidity and temperature probes

Dpstar is a leading supplier of environmental measurement sensors for temperature, relative humidity, pressure, dew point, CO2, and other environmental condition monitoring for industrial process application and research. Since the ’90s, we earned a reputation as a trusted partner to our clients through our commitment and dedication. We are an authorized distributor and supplier of measuring sensors solutions from renowned manufacturers Vaisala. Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala provides observations for a better world. Vaisala is a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.

The Vaisala CWL100 Wireless Data Logger uses LoRa wireless technology for long-range communication. It offers real-time data, trend graphs, and alerts. LoRa modulation ensures a strong and reliable signal, even over long distances and in tricky environments. The wireless range indoors is over 100 meters (about 330 feet) without needing signal boosters. Data communication is encrypted for security and integrity.

Vaisala CWL100 doesn’t need any setup when you start it up, and you can mount it in various ways with the included bracket. Its display gives you detailed information like the latest measurements, battery level, and signal strength for the Wi-Fi connection. Plus, it’s protected from dust and cleaning with its IP54 classification.


Key Benefits

Easy to use & data security
Vaisala CWL100 requires no startup configuration. Wireless communications are encrypted to ensure data integrity and security.

Wireless & Robust
Vaisala CWL100 connects wirelessly to Vaisala Jade Smart Cloud service via the CA10 Cloud Access Point.

Detachable probe
Vaisala CWL100 supports several probe types for humidity and temperature measurement. The probe is detachable, and easy to switch out for calibration.


It can be used to monitor temperature and humidity in a wide range of environments such as warehouses, production areas, cleanrooms, and laboratories. Vaisala CWL100 is also suitable for construction moisture measurement.



Networking standards LoRa™
Modulation LoRa chirp spread spectrum
Output power 13 dBm (20 mW)
Antenna Internal
Typical range (indoors) At least 100 m (approx. 330 ft)
Range with line-of-sight Over 500 m (1640 ft)
Frequency bands 868 MHz and 915 MHz
Sample capacity 30 days (43200 samples per channel)
Memory type Non-volatile EEPROM
Memory mode Ring buffer (FIFO)
Sampling rate One sample / channel / minute (nonchangeable)
Compatible probes HMP63, HMP110, HMP115, HMP115T,
Batteries 2 × AA sized, 1.5 V (LR6 or FR6)
Operation time at 20 °C (68 °F) without external power supply 18 months
Internal clock accuracy ±30 s/month
Synchronizes time from CA10 access point
EMC compatibility EN 61326 1, industrial environment
Electrical safety EN 61010 1
868 MHz model
EU directives RoHS Directive (2011/65/EU) amended by 2015/863
Radio Equipment Directive, RED (2014/53/EU)
Radio standards and approvals ETSI EN 300 220-2
ETSI EN 301 489-1
Compliance marks CE, UKCA
915 MHz model
Radio standards and approvals Anatel ID: 04761-19-12322
AS/NZS 4268
IC ID: 23830-RFL100A
Compliance marks ANATEL, RCM
Operating Environment
Storage temperature (−40 … +60 °C) (−40 … +140 °F)
Operating humidity 0 … 100 %RH, non condensing
IP rating IP54
Operating Temperature 1)
with alkaline batteries (+2 … +60 °C) (+35.6 … +140 °F)
with lithium batteries (−20 … +60 °C) (−4 … +140 °F)
1) For both alkaline and lithium, battery temperature operating specifications apply
Mechanical Specifications
Housing color White
Mounting methods Screws, tie-wrap, hook, or magnetic mounting bracket (optional accessory)
Probe interface 4-pin female M8 connector
Service port USB 2.0 with micro-USB connector
Dimensions (H × W × D) with HMP115 probe
Without mounting bracket 158 × 62 × 31 mm (6.22 × 2.4 × 1.22 in)
With mounting bracket 186 × 68 × 36.5 mm (7.32 × 2.68 × 1.44 in)
With batteries (2 pcs alkaline), HMP115 probe, and magnetic mounting bracket 254 g (8.96 oz)
Housing PC/ABS blend
Display window PMMA (acrylic)
Sealings TPE


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