Acoustic Release Solutions
Recover instruments without sending down a diver
Acoustic release devices are used by fish researchers and others tracking fish behavior to easily recover valuable underwater instrumentation from the sea floor remotely. This includes equipment like acoustic telemetry receivers and hydrophones. Acoustic release devices are especially useful in locations where diving is difficult or dangerous.
NexTrak acoustic release receiver
The NexTrak AR receiver combines the world’s most advanced acoustic telemetry system and acoustic release (AR) capabilities. With dependable, diver-free retrieval, researchers can capture more high-quality data while ensuring equipment retrieval even in the harshest marine environments.
Now available for order! Simply let us know in the Contact Us form.
Frequency
69 kHz
Maximum Depth
500 m
Battery Life
13 months
Storage
5 million detections
Ascent acoustic release
The Ascent™ Acoustic Release provides quick and reliable remote recovery for marine instruments and environmental sensing equipment located in shallow water. Designed for superior performance and reliability, the Ascent is equipped with an easy-to-use interface to a surface deck box that ensures successful retrieval of marine instruments every time.
It’s available in two models – the AR and the AR-2 depending on battery life required.
Depth 500 m
Power
AR: One 3.6 V Lithium D
AR-2: One 3.6 V Lithium DD
Release: One 4 V Lithium AA
Battery Life
AR: Approximately 28 months
AR-2: Approximately 60 months
Release: >100 releases
Max Release Load 250 lbs
ARC acoustic release canister
The ARC acoustic release canister is designed specifically for use with the VR2AR fish tracking acoustic release (AR) receiver and the Ascent AR. When the acoustic release is activated, the ARC brings the equipment to the surface while leaving a rope attached to the anchor for easy recovery of all seabed mooring infrastructure.
ARC is available in three models based on retrieval rope length.
Models
ARC
Big ARC (BARC)
Long ARC (LARC)
Weight
ARC: 13.5 kg
Big ARC (BARC): 16.5 kg
Long ARC (LARC): 20.7 kg
Depth (Rope Length Options)
ARC: 150 m
Big ARC (BARC): 300 m
Long ARC (LARC): 450 m
Materials
Heavy Acetal and 316 Stainless Steel
Buoyancy
Three 11” Trawl Floats (widely available off-the-shelf)
