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Lotek KiwiSat® K4F 149D is a lightweight marine Argos transmitter for attachment to the dorsal fin of a surfacing shark.
K4F 149D is carefully designed with a compact shape, minimal frontal area and can operate to a pressure of 1000dBar.
The tag is available with a choice of attachment points to better suit different shark morphometry.
Contact your Lotek Telemetry Specialist to learn more.
Ideal for shark species that frequent the surface such that their dorsal fin is exposed to the air. Size is small enough to be applicable to juveniles.
| Model | K4F 149D |
| Weight in air (g) | 27 |
| Weight in saltwater [1] (g) | TBD |
| Size (LxWxH) (mm) [2] | 80 x 61 x 15 |
| Estimated Life [3] (days) | |
| Standard | 275 |
| DIVE | 179 |
| Depth/Temp | 89 |
| Max Depth [4] (m) | 1000 |
1. Assuming the density of seawater is 1024 kg/m^3.
2. Reflect the maximum dimensions but the volume is significantly less.
3. Estimated life using 200 transmissions per day.
4. Max Depth for sensor model: 300m.
Features and specifications subject to change without notice.
Transmitter Specifications
Argos transmit power: <200mW
Operating temperature range: – 10˚C to 50˚C
Standard Sensors
Wet/dry sensor
Optional Sensors Specifications
Temperature sensor range: -40˚C to 60˚C
Temperature sensor accuracy: ±0.2˚C
Temperature sensor resolution: better than 0.05˚C
Depth sensor range: 300m
Depth sensor accuracy: ±1% of Full Scale
Depth sensor resolution: ~0.1% of Full Scale
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