Product Summary

Model OMT-404 is a temperature meter to measure the temperature of voice coil of the speaker unit applying the DC voltage.
This model displays temperature, DC resistance, and input voltage value for measurement result of the voice coil at the same time with digital. And also the measured value is stored in the USB flash drive at constant time interval.
Notice : DC power supply are not included this model.

Product specifications

Measuring temperature range : 0℃ to 400℃ (Measurement display up to 999℃)
DC resistance of the speaker : 2 Ω to 35 Ω (At 20℃)
Maximum input current : 50ADC
Maximum input voltage : 100VDC