Voltage Measurement

The AirLogger™ is capable of measuring voltages up to ±12 V. It can also measure voltages on moving or rotating bodies by attaching the measurement units to them, taking advantage of its wireless design.

Comparison Table

Measurement Target Temperature/Voltage
Product Name WM2000TA WM2000TB
Ch/Max ch 2 ch/200 ch 7 ch/700 ch
Battery Special battery
Operating temperature range -40 to 100°C
Size 54.5 mm, 45 mm, 17.5 mm 60.5 mm, 49 mm, 17.5 mm
Weight 36 g 45 g
Communication distance 30 m
Temperature sampling rate 0.1 s to 10 min
Lost Data Recovery Function
Max. absolute rating 15 V
Measurement range ±12 V
* The max. number of connections can be used when the sampling period is 1 s or longer.


Dramatically Improves Operation Efficiency with a Cable-less Design

The wireless design significantly reduces man-hours for wiring work
AirLogger™ can shorten the evaluation period because it reduces man-hours required for measurement.
The wireless design eliminates the need for measurement jigs
Measurement jigs, such as slip rings and embedded sensor prototypes, are not necessary.
Enables measurement from inside a metal housing
AirLogger™ can perform measurement in a temperature test chamber, etc., if there is a gasket or window. The radio wave condition can be checked with the software.

Capable of Real-Time Simultaneous Measurement at Multiple Measurement Points

The measurement units can be synchronized by the synchronization signals from the PC communication unit.
Up to 100 units can be measured simultaneously, and the measurement data can be checked in real time.
PC Communication Unit Max. 100 units

Technology to Stabilize Communication



The measurement units of the WM1000 are waterproof and dust-proof.
The measurement units of the WM2000 are waterproof and dust-proof when they are placed in the included waterproof case.

Precautions When Mounting

Measurement File Format

  • Measurement data of the WM1000 is saved in csv files.
  • Measurement data of the WM2000 is saved as unique binary data (it can be output to csv files).