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Real-time, advanced dissolved
gas analysis

The OPT100 brings unmatched long-term performance for the detection of key fault gases with no consumables, calibration or regular maintenance required. Combined with total gas pressure to efficiently detect air leaks, the OPT100 allows operators to safely extend transformer uptime.

Online moisture, hydrogen & temperature monitor

Continuously monitoring hydrogen and moisture levels is the first step in preventing power outages. The MHT410 measures directly from transformer insulation liquid, ensuring a lower total cost of ownership and more secure operation. Add the Indigo520 for additional settings and data visualization.

Moisture in oil measurements
for demanding applications

The MMP8, now with both standard and long probe lengths, is a field standard for detecting moisture in transformer lubrication oils, hydraulic fluids and other liquids. It is fully compatible with both the Indigo520 transmitter and handheld Indigo80 for intuitive configuration.


Vaisala Monitoring Systems.

Instruments, Sensors & Measurement Devices

Instruments, sensors and other devices for industrial measurements, indoor and outdoor monitoring systems and stations.

Data Subscriptions & Reports

Data products for monitoring indoor and outdoor environments and weather, decision support systems for ensuring timely and accurate decisions.


Software products

Maintenance & Support Services

Care agreements for calibration, repair, maintenance and project services, extended warranties and training services.

Certified Vaisala Distributors Since 2005

Butler & Land

In 1931, Professor Vilho Väisälä found a fallen Russian radiosonde. He admired its idea to use radio technology to retrieve observation results but, an innovator at heart, wanted to improve it to his quality standards. Väisälä finalized his famous innovation in 1936, founded Vaisala, and sold the first radiosonde pieces to MIT, Massachusetts Institute of Technology. A new global technology pioneer was born.

Today, Vaisala is a global leader in weather, environmental, and industrial measurements headquartered in Vantaa, Finland. Building on over 80 years of experience, Vaisala strives towards its mission of Observations for a better world. Vaisala are a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.


Their Industrial Measurements Business Area serves industrial customers in life science, power transmission, and targeted industrial applications. It offers a broad range of measurement instruments to ensure operational quality and productivity.

If you don’t see the item you are looking for, or we are currently out of stock, please contact our Sales Department for current price and delivery at 800-527-6870 or

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