Until fairly recently, chart recorders were used to create a record of varying data over a specified period of time. These mechanical devices can operate either with electrical power or via wind-up spring motors. Sometimes, these are still the best devices for the job. But, in large part, they have been replaced by data logger devices.

Data loggers are purely electronic devices that can gather data via their own built-in sensors, or via external sensors. Generally speaking, they’re portable, battery-powered, and make use of an on-board microprocessor. Stand-alone logging devices could have built-in keyboards and displays. Alternatively, they could hold data in memory, so that they may be later retrieved via a regular computer. Data may be displayed on a computer either via an Excel spreadsheet or graph, or via the logger’s own proprietary software. Some models have wireless capabilities, which would enable them to send constant streams of data back to the home base.

Search on the web, and you’ll see a wide range of data logger. Prices range from the inexpensive, to thousands of dollars. There are lots of vendors, selling devices for almost any type of data that can be measured.

Vendors with prominent web-front stores sell a large range of logging devices. You’ll find devices for use by electricians, network technicians, weather researchers, home owners, etc. It seems that there’s something there for almost anyone.

Homeowners may be interested in purchasing an energy audit or monitoring device. Several types are available, including one that can measure the power draw of an electrical appliance, and automatically calculate its annual energy cost. There’s also a monitoring kit that enables you to constantly monitor room temperature throughout the house.

Logging devices for industrial or small business use include monitors for HVAC, greenhouses, refrigeration units, or air quality. Air quality monitors can keep a constant check on levels of atmospheric carbon dioxide, carbon monoxide, or other gasses. Use these in closed spaces, where there may be a danger that these gasses may accumulate.

Taxi cab companies, trucking companies, or any other fleet operator, could benefit from using automotive data loggers. These small devices, when connected to a vehicle’s OBD-II port, can track many different data. They can monitor fuel economy, engine performance, and how the driver is operating the vehicle. Devices with wireless capabilities can allow an operator at a base station to view real-time data as a vehicle is being driven. An auto mechanic can use OBD-II devices to help diagnose engine problems.

For weather researchers, there are several types of monitoring solutions. Some are monitors for specific weather data, such as wind, temperature, humidity, soil moisture content, or rainfall. There are also complete weather monitoring stations, which can monitor multiple types of weather data.

Operators of grain elevators or mines, where combustible dust or gas may be present, would have to use monitoring devices that are “intrinsically safe”. These devices are designed so that they won’t create sparks that could cause explosions.

When you shop for a logging solution, be aware of what the purchase price includes. Many times, the required sensors are sold separately from the data logger device itself.

Our qualified technicians have over 30 years of experience in providing instrument calibration services and full service repair. We provide a wide range innovative technical solutions, including data logger, humidity sensors, and pressure transducer.