Skip Navigation Links
Battery TesterExpand Battery Tester
Multi-channel Temperature MeterExpand Multi-channel Temperature Meter
Micro ohm MeterExpand Micro ohm Meter
Multi-channel Resistance MeterExpand Multi-channel Resistance Meter
Digital LCR MeterExpand Digital LCR Meter
Capacitance MeterExpand Capacitance Meter
DC Electronic LoadExpand DC Electronic Load
Insulation Resistance MeterExpand Insulation Resistance Meter
Leakage Current MeterExpand Leakage Current  Meter
Hipot TesterExpand Hipot Tester
Inductance MeterExpand Inductance Meter
Power MeterExpand Power Meter
Digital Multimeter
Instruments SoftwareExpand Instruments Software
News & Events
Applent Instruments Inc. is going to attend 2012 80th Electronic Exhibition, China in Shanghai from 30th, Oct to 1st, Nov. Booth number: booth N3, 3A131.
Applent Instrument Inc. is going to attend the 78th Electronic Exhibition, China
The global 10% above handset lithium batteries test by AT520SE.
AT610/AT611 has the 1000V impact protection.
What's New
AT511C Low Ohm Meter AT511C
AT520B HV Battery Resistance Meter [Second Edition 2011] High voltage and Internal Resistance Meter. The measurement voltage is more than 800VDC.
AT2816A LCR Meter Using true color TFT-LCD display,Test Freq: 24064 points,Test Speed:30times/second。
AT2818 Precision LCR Meter Using true color TFT-LCD display,Test Freq: 10Hz~300kHz,Test Speed:30times/second
Home Products Family Battery TesterAT525
AT525 Storage Battery Internal Resistance Online Tester
AT525 storage battery internal resistance online tester adopts high-performance 32dgt ARM micro processor, can be used to test voltage and internal resistance of battery. Test the resistance 0.001mΩ – 3.3000kΩ, 0.0001V – 60.000V DC voltage with the resistance max reading of 3300dgt and voltage 60,000dgt. Accuracy of 0.5% even the speed is under 10 times per second. The indication beat is controlled under 3 digits. AT525 can test open-circuit voltage accurately, adding automatic sorting function and beep set, is applied to UPS online batteries measurement, automatic sorting system to complete production line test. Equipped with USB interface, can be used for remote control, data acquisition and analysis. It is suitable for flow line inspect of storage batteries.

Parameters AC resistance, DC voltage
Accuracy R: 0.8%±5dgt V: 0.05%±5dgt
Range Resistance: 0.001mΩ~3.3Ω Voltage:0.0001V~60.000V
Signal Source AC: 1kHz Open-circuit Voltage: < 30mv Current: < 15mA
Range Automatic, Manual, Nominal. 4 ranges
Speed 1 time/second
Result Display ABS/PER/SEQ
Display Max Resistance: 3300 Voltage: 60,000
Adjustment Short-circuit reset for each range
Comparator Voltage compare separately, resistance compare separately, voltage and resistance combination compare GD/NG sorting result display, beep
Trigger Internal, Manual, Remote
Interface Build-in Mini-USB (virtual serial port); Charging Interface; U disc Interface
Input: 100-240V~50/60Hz 0.35A Output: 9V 1A DC 8.4v, Li, 2200mAh rechargeable battery
130.23mm (Width)*210.76mm (Height)*37.88mm (Depth) 650g
ATL501B 4-terminal Kelvin test clip; ATL909: DC adaptor; ATL202 portable bag; ATL804 Li- battery; *ATS528 data acquisition software *ATL105Mini-USB communication cable
18650 test fixture
3.5 inches true-color 16M TFT-LCD display; Keypad lock; Data hold function; Compatible SCPI Order Set; Switch in both Chinese and English; Adjustable Background light; Auto power-off; 500 groups measured data saved with one key
Gorgeous dual-colure cast shell
Battery and external power supply
TFT-LCD Display
Battery capacity: continuously used for over 8 hours
Automatic power off
Double display: ΔABS/Δ%/Sorting Result
Comparator Function: GD/NG VFD Show or HANDLER out
Auto Zero-Adjust for each range
Four-terminal resistance measurement
Chinese and English menu
500 groups measured data saved with one key
Mini-USB interface
SCPI compatible command sets
Keypad lock function
Data Hold function
Adjustable background-lightness
Max power≤5W
8.4V,Li-Battery 2200mAh rechargeable battery
Dimension: 210.76mm*130.23mm*37.88mm
Measure all kinds of low voltage,storage battery, lithium battery,mobile battery, contact resistance, battery internal resistance, battery voltage
UPS Online Measurement
More Details
Related Link...
  ● AT520
  ● AT520L
  ● AT520B
  ● AT520C
  ● AT851
  ● AT528
  ● AT528L
  ● AT526
  ● AT521
  ● AT526B
  ● AT5210
  ● AT527
  ● AT5220
  ● AT527A
  ● AT527B
  ● AT527H
  ● AT527L