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+44 (0) 1590 641223 Unit 1 | Barnes ln | Milford on Sea | SO41 0AP MON-FRI 9-5


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• Durable robust IP65 rated enclosure
• Internal buzzer alert
• 37 pre-set start sequences
• Auto Repeat capability for successive starts
• Easy to use, compact & affordable
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Product Description

AutoHoot is an electronic control unit that has been designed to accurately control the sequence of sound signals.

Historically used within the sailing market to simplify the process of starting races and remove unnecessary human error the technology can be applied to any application that requires accurate and sequenced sound signalling.

Starting sailing races can be complex with varied timing options and numerous races being started in succession, AutoHoot  has become an essential aid for race officers with 37 pre-set sequences it’s as simple as switching the unit on and a sequence will begin.

The 37 pre-set starting sequences include:
• Rule 26 (5-4-1-Start)
• Match Racing
• Team Racing
• Countdown

In addition to the 37 pre-set sequences you can also program your own bespoke starting sequence by connecting the AutoHoot to a PC using the USB Configuration Cable. Any starting sequence, pre-set or bespoke can be used as a single start or a succession of repeatable start sequences. During the sequence the operator is made aware of the upcoming sound signal by an internal buzzer.

AutoHoot also has the capability of allowing sound signals to be made outside the starting sequence without interrupting it, for example when recalling boats that are OCS, finishing boats from a previous race or postponing a race start.

AutoHoot Benefits
• Simplified error free starting sequences
• Guaranteed accurate timings
• Reduces workload and stress
• 12V power supply ideal for remote operation or from boat/car battery
• Competitors get a reliable, consistent and error free race start every time
AutoHoot Mk3 Specification
Dimensions (including switches and cable gland) 168mm x 80mm x 76mm
Enclosure dimensions (excluding switches and cable gland) 140mm x 80mm x 68mm
Mounting holes 4 off 4.4mm dia., 120mm x 60mm
Enclosure material Polycarbonate, Light Gray RAL 7035
Enclosure flammability rating UL 746C 5V
Weight 335g
Cable entry Compression cable gland. With two-part compression ring. Cable diameter 5 to 13 mm
Pre-programmed sequences Selectable by switch sequence on power up
Custom sequences User programmable via standard C type USB Cable
Auto Switch Stainless steel 2 position rotary switch with green illuminated arrow. IP67 rated
Hoot Button Stainless steel push-button switch with red illuminated ring. IP67 rated
Relay (Horn Connection)
Rated current 20A
Endurance >300,000 operations with resistive load at 20A
Connection Rising clamp style terminals (2.5mm2 cable)
Type High-contrast supertwist LCD
Viewing angle 6 o’clock
Viewing area 19mm x 38mm
Time accuracy ±1 ppm at 25 °C (ageing first year ±3 ppm max at 25 °C)
Supply voltage 6.5 to 15 Vdc
Current at 12 Vdc 30 mA typical (with LEDs on, excluding horn current)
Supply Input protection Polarity reversal protected. Internal replaceable fuse – 20A microblade automobile fuse
Connection Rising clamp style terminals (2.5mm2 cable)
Back up battery for time CR2032
Back up battery life >5 years
Temperature range Operating range: -20°C to +70°C

Storage range: -20°C to +70°C

Relative Humidity 0% to 100% (non-condensing)
Ingress Protection IP66
Compliance UKCA, CE
Guarantee 2 years (return to manufacturer)

The manufacturer reserves the right to amend the specification and therefore the information above may be subject to change. Please contact us for the latest information.

Data sheet
Download PDF AutoHoot II Data Sheet
User Instruction Manual
Download PDF AutoHoot II User Manual
Download PDF AutoHoot II Quick Start Guide
Download PDF AutoHoot II Additional Wiring Instructions
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