Hydroacoustic Technology, Inc.
  Hydroacoustic Technology, Inc.    
 
  Freshwater-Focused Acoustic Tags 307 kHz  
 
 > Ideal for Tracking in Freshwater - 795-Series & 900-Series Acoustic Tags
 
HTI 795-Series & 900-Series Acoustic Tags offer many advanced capabilities that no other tag can. Unlike other systems, researchers can track hundreds of fish or tagged aquatic life simultaneously in one area. They are immune to tag signal collision and data loss. Obtain the highest resolution possible at far ranges (up to 20 cm at ranges of up to 1 kilometer).

They are user-programmable and work with HTI's Model 290/291 Acoustic Tag Tracking Systems, and together they offer an efficient means of remotely tracking fish in 3D or 2D with sub-meter resolution in real-time. Immediately tracks hundreds of fish in the same area at the same time without experiencing tag signal collisions. To identify tags out-of-water or after battery life has expired, an Acoustic / PIT Tag option is available for all HTI Acoustic Tags.

Researchers can see their fish track data via digital devices (e.g., smart phone or tablet) for immediate access to data from anywhere in the world. Find out why leading fisheries researchers are using scientifically proven HTI acoustic tags.


795 and 900-Series Acoustic Tags to Track Fish Survival & Behavior in 2D and 3D

 
 
   

Example of 2D fish tracking at a non-physical barrier in Central California. The green line indicates the barrier is turned on.
  Key Features of Acoustic Tags
High-resolution
Fine-Scale 3D positioning (fish tracks) over time.
Small tag size Monitor fish data in real-time or in post-processing.
Small tag size Access data remotely from anywhere in the world.
Small tag size Acoustic / PIT Tag combination available.
Tag animations
Track hundreds of tags in the same area at the same time. Signals are immune to tag collision and data loss.
Tag animations
The only tag in the world to conclusively detect predation.
       
   
    Diameter
mm
Length
mm
Volume
cm³
Frequency
kHz
Source
Level
dB/uPa
Weight

Approx. Life*

   Acoustic Tag Family in air grams in fresh-
water
grams
3 sec 
PRI 
10 sec 
PRI 
   HTI 795-Lm    6.8 17.5 0.28 307 149 0.65 0.34
38 d 
66 d 
   HTI 795-LD      6.8 20.0 0.45 307 149 1.10 0.55
98 d 
175 d 
   HTI 795-LY             16.0 48.0 5.70 307 152 11.90 7.30 2.5 yr 4 yr
   HTI 795-LZ         16.0 69.0 12.0 307 152 24.00 14.00 4 yr 5 yr
   HTI 795-LF         11.0 24.5 0.8 307 149 3.0 tba 170 d 500 d
                     
   HTI 900-s       6.0 16.0 0.28 307 152 0.57 0.29 35 d 65 d
   HTI 900-Lm  6.0 19.0 0.31 307 152 0.65 0.34 55 d 100 d
   HTI 900-LB 9.0 18.0 0.50 307 152 0.80 0.30 70 d 125 d
   HTI 900-LD 9.0 20.0 0.56 307 152 0.96 0.40 110 d 200 d
  HTI 900-LV 9.0 30.0 1.00 307 152 1.65 tba 140d 450 d
                     
  *  HTI 900-PB  PDAT 10.0 23.0 0.50 307 152 0.95 tba 60 d 110 d
  HTI 900-PD  PDAT 10.0 25.0 0.56 307 152 1.11 tba 100 d 180 d
  HTI 900-Ps  PDAT 7.0 16.0 .33 307 152 0.75 tba 30 d 60 d
  HTI 900-Pm  PDAT 7.0 20.0 .36 307 152 0.8 tba 50 d 90 d
  HTI 900-PV  PDAT 7.0 35.0 1.10 307 152 1.8 tba 125 d 400 d
                     
   HTI 980-MX 16.0 48.0 9.65 80 156 18.5 9.65 3 yr 5 yr
   HTI 980-MV tba tba tba 80 158 2.0 0.9 tba tba
   
 

* While, future predation detection may be included in all 900-Series Tags, they are presently only offered in the 900-PB and 900-PD. Estimated life can be extended by decreasing Pulse Width (PW) and/or increasing Pulse Rate Interval (PRI). Tags operate at 307 kHz or 80 kHz.  Length, diameter, & weight may vary +/- 10%. Life quoted is based on operating parameters of 1 msec pulse width, single pulse, at 10°C. Acoustic / PIT Tag combinations are available for all HTI Acoustic Tags.

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