ANENG AN999S High-precision Desktop Bluetooth Speaker Digital Multimeter LCD Automatic Ohm Voltmeter Frequency Tester (No Battery)

• This is an automatic range multi-function digital multimeter with a high-precision display of 19999 digits
  

• The meter is driven by a lithium battery, with true effective value measurement, LCD display, adjustable backlight brightness, clear readings, and has clock, alarm clock, Bluetooth-compatible audio, and ambient temperature display functions

• 3D surround: feel the dynamic range the noisy environment is still penetrating

• True RMS: feel the dynamic range the noisy environment is sill penetrating

• Intimate life assistance: Music; time, alarm clock, and temperature functions make work and life easier

• Adjustable volume button: rotating the volume button: turn up the volume to the left, turn down the volume to the right, and can also be rotated to work with the large screen

• Small screen control buttons: The soft rubber buttons design on the back is used to set the function of the small screen display

• 18650 lithium battery/USB direct charge: larger capacity lithium battery and USB direct charge, no need to consider battery life

• Support frame design: the retractable support frame is convenient for measuring and adjusting the viewing angle

Specification:

• Display screen (LCD): 19999 digits

• Range: automatic/manual

• Material: ABS + TPE

• Sampling rate: 3 times/sec

• True valid value: Yes

• Data retention: Yes

• Screen backlight: Yes

• Low battery prompt: Yes

• Automatic standby: Yes

• Size: 200 x 135 x 105mm

• Battery: 2 x 18650 battery (not included)

• Working environment: temperature 0-40?, humidity <75%

• Storage environment: temperature -20-60?, humidity <80%

Note: Please turn off the music playing when measuring the voltage in the AC millivolt range, otherwise it may affect the measurement accuracy.