Garmin
Garmin Airmar ST850 Speed Temp Sensor Plastic Thru-hull 8 pin
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin Airmar ST850 is a low-profile plastic thru-hull sensor that collects vessel speed and water temperature for display on compatible Garmin sounders. A paddlewheel measures speed through water while the fast-response temperature sensor reports water temperature, both fed through a single 8-pin analog connection.
It reads speed from 2 to 45 knots with smooth, linear output and a temperature accuracy of +/- 0.5 C. The low-profile housing is nearly flush, extending just 5 mm (3/16 in) outside the hull to minimise drag, and an integrated self-closing valve minimises water flow into the bilge when the insert is removed to clean the paddlewheel. It fits any deadrise or transom angle up to 22 degrees and is supplied with a 9 m (30 ft) analog cable.
PRODUCT DETAILS
- Thru-hull paddlewheel sensor delivering vessel speed and water temperature to compatible Garmin sounders
- 8-pin analog output for direct connection to compatible Garmin displays
- Speed range from 2 to 45 knots with smooth, linear output
- Fast-response temperature sensor accurate to +/- 0.5 C
- Low-profile plastic housing extends just 5 mm (3/16 in) outside the hull to minimise drag
- Self-closing valve minimises water ingress when the insert is removed for cleaning
- Fits any deadrise or transom angle up to 22 degrees
- ST850 plastic thru-hull speed and temperature sensor
- Thru-hull housing with self-closing valve
- 9 m (30 ft) analog cable with 8-pin connector
- Installation instructions
No exploded diagram available for this product.
No compatible transducers listed for this product.
No spares or accessories listed for this product.
No compatible products found.
Sensor
| Measured data | Speed through water and water temperature |
| Speed range | 2 knots to 45 knots |
| Pulse rate | 17,000 pulses per nautical mile (4.8 Hz per knot) |
| Data update rate | 1 per second |
| Temperature sensor range | -10 C to 40 C (14 F to 104 F) |
| Temperature sensor accuracy | +/- 0.5 C (+/- 1.8 F) |
Connectivity
| Interface | Analog (paddlewheel); 8-pin Garmin connector |
| Cable length | 9 m (30 ft) analog cable |
Mounting
| Mounting type | Plastic thru-hull with self-closing valve |
| Hull deadrise | Up to 22 degrees |
Physical
| Housing material | Plastic |
| Profile | Low-profile; extends only 5 mm (3/16 in) outside the hull |
| Housing diameter | 75 mm (2.94 in) |
| Housing length | 89 mm (3.49 in) |
| Weight | 0.7 kg (1.4 lb) |
Electrical
| Pressure rating | 3 m (10 ft) |
General
| Standards | CE; complies to IEC 60945 |
No videos available for this product.
