The HIKMICRO Acoustic Leak Detector AD21 is a high-performance device designed for technicians and plumbers
to find leaks in plumbing, water service, and residential or commercial properties. The device has four ranges of
selectable digital bandpass filters, and the amplification is up to 80 dB. The filtration and amplification of the sound
frequencies can help you locate the leakage points accurately. It can be widely used with the handheld sensor and
pick-up sensor correspondingly. Furthermore, it can detect ignored leaks, reducing resource waste and property
loss.

Specification
Acoustic
Frequency Range 150~7500 Hz
Signal Noise Ratio 60 dB
Sensitivity -29dB, 70 mv/g
Sensor hand held sensor, Pick-up sensor
Band Pass Filters
Indoor low frequency 150Hz to 3000Hz
Indoor mid-frequency 3000Hz to 6000Hz
Indoor high frequency 4500Hz to 7500Hz
Indoor all-pass 150Hz to 7500Hz
Amplification 80 dB
Image Display
Display 1024 × 600 Resolution, 7″LCD Touch Screen
Screen Brightness Manual/Auto
Data Storage and Communication
Storage Media Built-in EMMC (4GB)
Audio Storage Capacity Approx. 20 hours
Audio File Format .wav
General
USB Interface USB 2.0, USB Type-C
EMC
EN55032:2015+A11:2020
EN50130-4:2011+A1:2014
EN61000-3-3:2013
Working Temperature Range -10 °C to 50 °C (14 °F to 122 °F)
Drop Test Height 1.2 m(3.93 ft)
Weight
Main Unit: 821g(1.81 lb)
Hand held sensor:239g(0.53 lb)
Pick-up sensor:490g(1.08 lb)
Headset:214g(0.47 lb)
Standard package:3000g(6.61 lb)
Storage Temperature Range -40°C to 70°C (-34°F to 142°F)
Relative Humidity ＜90 % non-condensing
Battery Type Rechargeable Li-ion Battery
Battery Operating Time ≥11h
Battery Charging Time 3h to 90%, 6h to full charge
Protection Level
Main Unit: IP40;
Hand held sensor:IP54;
Pick-up sensor: IP66;