Hioki Lr5031 Instrumentation Logger

Easily mount the light-weight, pocket-sized loggers in tight spaces
Easy-to-see dual display
Transfer data to PC even during recording
Replace batteries while recording (30-second limit)
3 times the memory capacity than the predecessor (Record 60,000 data per channel)
Measurement data is preserved even after the battery dies
Worry-free backup preserves recorded data even if a new measurement is started by mistake