The ST850/800 is an analog, retractable speed and temperature sensor. The sensor
fits inside a low profile bronze thru hull housing that is nearly flush to the
hull, with only 5 mm (3/16”) extending outside of the hull. The housing has a
valve assembly that helps to minimize water ingress in the bilge when the sensor
is removed for routine maintenance of the paddlewheel.
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Speed and temperature
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Speed Range: 2 to 45 knots (2 to 52 MPH)
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Analog output
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Retractable insert in a low-profile bronze housing with a water valve
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Available in a plastic or bronze housing with water valve
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Retrofits into B617V, P617V, SS617V, P217, P314or ST650 housing
Brand: Airmar
Technology
Cable-Length: 10
m (33'), 9 m (30’) Analog cable
Common Use: Cruising/Racing
Sailboats, Leisure/Yachting, Fishing
Country of Origin: USA
Data Rate: 1X
per second
Display Connector: 8G
Hole Size: 51
mm (2")
Housing Material: Bronze
Hull Material: Fiberglass
or wood
Mounting Style: Low
Profile Thru-Hull
Power Rating: N/A
Protocol Output: Analog
Pulses: 17,000
p/nm* (4.8 Hz per knot)—*p/nm = pulses per nautical mile
Retractable housing: Yes
Retrofits: Retrofits
into B617V, P617V, SS617V, P217, P314 or ST650 housing
Speed Range: 2
to 45 knots (2 to 52 MPH)
Temperature Accuracy: ±0.5°C
(±1.8°F)
Tilted Element: No
Transducer Functions: Speed,
Temperature
Usable Shaft Length: 57
mm (2.25")
Voltage: 9
to 16 VDC
Water Temperature: -10°
to 40°C (14° to 104°F)
Weight: 1.3
kg (2.8 lb.)
WARNING:
This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP)
which is known to the State of California to cause reproductive harm, and
Vinyl Chloride which is known to the State of California to cause cancer. For
more information go to 
