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MOUNTABLE DISPLAY (ALSO COMES WITH WRIST STRAP)
IMPELLER (MOUNTS TO HULL)
TRANSMITTER (PLACE IN BOAT NEAR IMPELLER LOCATION) |
NOW AVAILABLE-allow 5-7 days for shipment
- US orders ship free!
SPEEDWATCH KNOTMETER:
JDC's NEW Speedwatch wireless knotmeter is a breakthrough in ease
of installation and features. NO wires! NO holes! Mount the impeller
under the boat and place the transmitter inside the boat. That's it!
Instant speed is transmitted to the display anywhere in the boat, up
to 13 feet (4 meters) away.
Unlike GPS, which measures speed over land, the SPEEDWATCH measures
your actual speed and distance through the water.
THE IMPELLER
The impeller is mounted under the boat, attached via a fin or
clip mount. The small impeller - slightly more than an inch long,
spins through the water, in speeds from 0.3 mph (0.3 knots, 0.5
km/h) to over 40 mph (35 knots, 64 km/h). When the impeller spins, a
magnetic field is created which is measured by the transmitter -
through a hull - up to 12 in (30 cm) away. NO wires connect the
impeller to the transmitter! This magnetic transmission is patented
technology by JDC Electronic.
THE TRANSMITTER
The transmitter is placed inside the boat, within 12
inches (30 cm) of the impeller. The transmitter picks up the
impeller's magnetic field when it is rotating, transmitting the data
over 8.2 KHz up to 13 feet (4 meters) away. The transmitter is
water-proof, with a replaceable lithium battery. good for 12,500
(20,000 km) of readings. The transmitter can also receive other
speed sensors and transmit to the display, which can be calibrated
to properly display the speed and distance.
Dia: 0.80 in (20 mm) X 7.1 in (80 mm)
THE DISPLAY
The
SPEEDWATCH display contains an internal receiver to pickup the
information sent by the transmitter, up to 13 feet (four meters)
away. The display shows instant and average speeds, distance
traveled, trip distance, acceleration, time traveled, and
chronometer and countdown timers.
The SPEEDWATCH will be an essential tool
for training, providing instant feedback on speed and acceleration.
Unlike GPS units, the SPEEDWATCH gives true speed through water and
distance traveled, versus speed over land. When going against a
current, the speed given by a GPS unit will be very inaccurate.
The SPEEDWATCH display can be mounted on
a deck or strapped to a wrist or leg. Multiple displays can be used
with one sensor . Powered by a lithium battery, the display is
water-proof and will register up to 12,500 (20,000 km) on one
battery.
Dia: 3.0 in (78 mm) X .70 in (18 mm), Weight: 3.5 oz (100 g)
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FEATURES OF THE SPEEDWATCH:
Easy to install: fix the impeller on the water
with 1 of the 3 included fins, place the radio transmitter inside
the hull and that's all!
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Magnetic transmission through the hull
without hole (JDC patent) and radio transmission to the display
unit (over four meters)
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Current speed
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Balanced speed (set by customer)
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Average speed of the trip (hundredth
of unit)
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Maximum speed reached
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Display of speed increase or decrease
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Distance of the trip
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Global distance traveled (over one
season)
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Units: km/h, m/s, knots and mph
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Automatic or manual chronometer
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Programmable countdown timer for
regatta start
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Clock
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Waterproof
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Possibility to use the existing paddle
sensor of your boat
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Calibration possible to match any kind
of speed sensor
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Possibility to fix the display
anywhere on the boat and also for each crew member to have his own
display unit
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Backlight
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Low power consumption (around 20'000
km sailed without changing battery)
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Velcro strap
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Low radio frequency (8,2 kHz)
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Min. speed reading: 0,3 knots, 0,5
km/h, 0,1 m/s, 0,3 mph
Dimensions:
Display: Dia: 3.0 in (78 mm) X .70 in (18 mm), Weight: 3.5 oz
(100 g)
Transmitter: Dia: 0.80 in (20 mm) X 7.1 in (80 mm)
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ADVANTAGES OF THE SPEEDWATCH OVER GPS:
While the SPEEDWATCH does not replace a GPS, it does have many
advantages when training and monitoring performance:
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Instant speed
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Actual speed through water
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Registers speeds down to 0.3 mph
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Tracks acceleration
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Countdown timers specific for regattas
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Long battery life
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Total and trip distances
Using the SPEEDWATCH during training, one can instantly gauge the
effect of different paddling strokes, equipment, and sailing
techniques, enabling the best performance possible. |
