Wi-Fi Data Logger HMT140

Wi-Fi temperature and humidity Data Logger

The Vaisala HMT140 Wi-Fi data logger is designed for humidity, temperature and analog signal monitoring in cleanrooms, warehouses, freezers, laboratories, blood banks and other life science applications. This battery-powered device simplifies installation and eliminates the need for power or network cables. Combined with viewLinc monitoring software, the HMT140 ensures continuous historical and real-time data with reliable remote alarming.

Data Logger Selection Guide 

HMT140 Country Approvals: 

The HMT1140 Wi-Fi data logger is approved for sale in the following countries:
•    Australia
•    Canada
•    China
•    Japan
•    New Zealand
•    Taiwan
•    The United States

Due to updated regulations (ETSI EN 300 328 V2.2.2a), HMT140 will no longer be available for purchase in the following countries from Aug. 6th, 2021, onwards: EU countries, Iceland, Liechtenstein, Turkey, Norway, Switzerland, and the UK. The regulations do not affect devices already in use.  For alternate wireless data loggers, please see VaiNet RFL100 data loggers, or DL-series data loggers with Wi-Fi port server devices.

Quick and easy Wi-Fi connectivity to viewLinc monitoring software
Connectivity provided through your existing Wi-Fi network
Autonomous operation and local alarms ensure alerting capability regardless of network connectivity
Local data storage provides continuous fail-safe operation - even during power or network outage
Two inputs for voltage, current, contact, temperature or relative humidity
Accurate and reliable multi-signal measurements from industry best sensors
IP65 (NEMA 4) rated housing is resistant to dust and chemicals
Traceable to SI units through national metrology institutes
~ 18-month battery life
Optional LCD display
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Key Benefits

Easy to install and relocate
Wireless communication utilizes existing Wi-Fi network and is ideal for facilities without available wired infrastructure and for applications in which measurement points move regularly.
Internal data storage
Onboard memory stores data during a power outage or network downtime so no data is ever lost ensuring gap-free records. The logger’s history is always transmitted to the viewLinc monitoring system once communication is restored.
Interchangeable temperature/RH probes for easy field calibration
The HMP110 digital humidity and temperature probe is field replaceable and contains all calibration details. Monitoring system viewLinc's event log will record any sensor swap-outs, ensuring your audit trail is complete and compliant.

Watch the video

Vaisala viewLinc continuous monitoring system