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In my lab I have an ANENG AN-999S Bench Multimeter.

Affiliate links

If you want to buy, see here:

Vendor Product
AliExpress ANENG AN-999S Desktop Voice Multimeter Digital 19999 Counts Professional Bluetooth Tester True RMS AC/DC Voltmeter Current Tools


I couldn't find an electronic manual, but a dead tree version is kept above the device.

To connect to this device via Bluetooth use the BluetoothDMM app in the 'electronics' folder on 'vili'.


Purchased from here: ANENG AN-999S Desktop Voice Multimeter Digital 19999 Counts Professional Bluetooth Tester True RMS AC/DC Voltmeter Current Tools.



ANENG AN999S Bench Voice Multimeter Bluetooth-compatible Tester

19999 Counts Profesional Digital True Rms Autorange Transistor Tool Meter

NOTE: AN888s does not have voice broadcast and APP compatibility function.


This product is a lithium battery-powered, true RMS, auto-range multi-function digital multimeter with 19999 counts LCD display and adjustable backlinght brightness.It is equipped with clock,alarm clock,Bluetooth to play music,temperature display.


  • Display (LCD): 19999 COUNT
  • Range: automatic / manual
  • Material: ABS+TPE
  • Sampling rate: 3 times / sec
  • True RMS: √
  • Data retention: √
  • Backlight: √
  • Low battery prompt: √
  • Automatic standby: √
  • Type of battery: 18650 lithium battery
Feature Range Precision
DC voltage (V) 1.9999V/19.999V/19.999V/1000.0V ±(0.05%+3)
DC voltage (mV) 19.999mV/199.99mV ±(0.05%+3)
AC voltage (V) 1.9999V/19.999V/199.99V/750.0V ±(0.3%+3
AC voltage (mV) 19.999mV/199.99mV ±(0.3%+3
DC (A) 1.9999A/19.999A ±(0.5%+30)
DC (mA) 19.999mA/199.99mA ±(0.5%+10)
AC (A) 1.9999A/19.999A ±(0.8%+30)
AC (mA) 19.999mA/199.99mA ±(0.8%+10)
Resistance (Ω) 199.99Ω ±(0.5%+3)
Resistance (KΩ) 1.9999kΩ/19.999kΩ/199.99kΩ ±(0.2%+3)
Resistance (MΩ) 1.9999MΩ/19.999MΩ ±(1.0%+3)
Resistance (MΩ) 199.99MΩ ±(5.0%+5)
Capacitance 9.999nF ±(5.0%+20)
Capacitance 99.99nF/999.9nF/9.999μF/99.99μF/999.9μF ±(2.0%+5)
Capacitance 9.999mF ±(5.0%+5)
Frequency 99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/6.000MHz ±(0.1%+2)
Diode YES
On and off YES
Bluetooth version V5.0
Transmission distance ≤10M
Rated power 2 x 4W RMS
Frequency response range 100Hz-18KHz
Distortion ≤1%
Signal to noise ratio ≥76dB


  • DC Current: 19.999mA/199.99mA/1.9999A/19.999A
  • AC Current: 19.999mA/199.99mA/1.9999A/19.999A
  • DC Voltage: 19.999mV/199.99mV/1.9999V/19.999V/199.99V/1000.0V
  • AC Voltage: 19.999mV/199.99mV/1.9999V/19.999V/199.99V/750.0V/
  • Operating Mode: automatic / manual
  • Measuring Capacitance Range: /
  • Measuring Resistance Range: /
  • Model Number: ANENG AN999S Bench Voice Multimeter Bluetooth Digital Multimeter
  • Dimensions: 200*135*105mm
  • Operating Temperature: 0 - 40 ℃
  • Measuring Inductance Range: /
  • Display Type: Digital display
  • DIY Supplies: ELECTRICAL
  • Brand Name: ANENG
  • Origin: Mainland China
  • Certification: NONE