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Blue and grey handheld digital multimeter with built-in flashlight

OWON Technology

OWON Technology OW18B flashlight

SKU CH-KZD7-VZ7ZW MPN OW18B

A Bluetooth multimeter with 5999-count display, true RMS, NCV, temperature probe and built-in flashlight

  • True RMS accuracy for reliable AC and DC readings
  • 5999-count display gives high-resolution measurements
  • Built-in flashlight adds illumination in dark areas
  • Bluetooth data logging enables wireless recording via mobile app
  • NCV detection provides non-contact voltage alerts

Multimeter with flashlight and Bluetooth

The OWON OW18B is a true-RMS digital multimeter that includes a built-in flashlight and Bluetooth data logging. It targets electricians, technicians and hobbyists who need voltage, current, resistance, capacitance, frequency and temperature measurements in one handheld tool. The 5999-count display and automatic or manual ranging suit both quick checks and detailed diagnostics.

Power draw and auto-off behaviour

The meter runs on a single 9V battery that is not supplied with the unit. An auto power-off function reduces drain during pauses, while a low-battery indicator warns before the cell is exhausted. Current consumption in normal measurement modes stays low enough for extended field sessions without frequent battery changes.

Sustained logging and thermal measurement

Bluetooth connectivity lets the OW18B stream readings to a mobile app for long-term logging instead of only capturing momentary values. A K-type thermocouple input adds temperature tracking alongside electrical parameters. Continuous sampling at three readings per second supports trend analysis during prolonged load or environmental tests.

Highlights

  • True RMS accuracy for reliable AC and DC readings
  • 5999-count display gives high-resolution measurements
  • Built-in flashlight adds illumination in dark areas
  • Bluetooth data logging enables wireless recording via mobile app
  • NCV detection provides non-contact voltage alerts

Specifications

Brandowon

Questions about this item

How do I install the 9V battery in the OW18B?

Open the battery compartment on the rear, insert a 9V battery observing the marked polarity, then close the cover securely; the step often missed is ensuring the compartment latch clicks fully so the low-battery indicator works correctly.

What maintenance will the OW18B need over time?

Replace the 9V battery when the low-battery indicator appears; the K-type thermocouple tip should be inspected for corrosion after temperature measurements, and the NCV sensor window kept clean for reliable non-contact voltage detection.

What limit appears first during sustained high-current measurement on the OW18B?

The 10.00 A range is fused for short-duration use; continuous current near that level will heat the internal shunt and trigger auto power-off before the 1.2 % + 3 digits DC or 1.5 % + 3 digits AC accuracy spec can be maintained.

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