This top-of-the-line ground speed sensor delivers the truest velocity measurement available at mounting heights over 6 feet.

• Installs easily
• Views actual ground surface for accurate speed measurement
• Can be mounted to look forward or backward from vehicle
• Velocity range 0.33-66 mph (0.53-96.6 km/h)
• Mounts at 35±5° angle and at least 24 in. (610 mm) height from target surface (mounts anywhere from 2 to 8 ft. high)
• Variety of factory output frequency settings available
• Sleek design—4 x 4 x 12.25 in. (10 x 10 x 31.1 mm)
• Weighs only 4.5 lbs. (2.05 kg)
• Achieves velocity errors of ±1-3% through in-field calibration

Product support

Locate a distributor

Enter your zip or postal code to find the DICKEY-john distributor nearest you.
For more detailed results, narrow your search by miles.

Zip Code/Postal Code:	(required field)
Within Miles:	25 Miles 50 Miles 100 Miles 250 Miles 500 Miles

Outside North America? Locate a distributor worldwide.

Technical Information

Velocity Range†	0.53 to 96.6 km/hr (0.33 to 66 MPH)
Accuracy‡	True velocity errors of: <±5% 0.53 to 3.2 km/hr (0.33 to 2 MPH) <±3% 3.2 to 107 km/hr (2 to 67 MPH)
Response, Output Speed	<200 milliseconds lag for "combo" filter selection; [dv/dt =6.4 km/hr/sec (4.4 MPH/sec)]
Turn ON/OFF Delay	<305mm (12 inches) distance traversed,typical
Footprint, Target	Elliptical, 305mm (12 inches) major axis [at 601mm (24 inches) mounting height]
Mounting Angle	35 ±5° depressed from horizontal [from target surface]
Mounting Height	457 to 1219 mm (18 to 48 inches) 610mm (24 inches) nominal [from target surface]
DC Power Requirements	+Vbatt (unregulated battery voltage) +9 to +16 VDC @ <0.6 Amp
Output Signal Characteristics	VOH = (+Vbatt - 1.5 VDC) - 1.051 (IOH); VOL < 0.7 VDC @ IOL <6ma; IOSS (Source) = 13 ma [+Vbatt = 16 VDC]; IOSS (Sink) = 25 ma [+Vbatt = 16 VDC]; where: VOH High level output signal voltage in VDC VOL Low level output signal voltage in VDC IOH High level output source current in ma IOL Low level output sink current in ma IOSS (Source) Maximum output source current for output short to ground IOSS (Sink) Maximum output sink current for output short to +Vbatt
Output Frequency	Factory selectable options: 34.80 Hz/Km/Hr (58.94 Hz/MPH) 26.11 Hz/Km/Hr (44.21 Hz/MPH) 16.32 Hz/Km/Hr (27.64 Hz/MPH) 10.06 Hz/Km/Hr (17.034 Hz/MPH)
Output Response Time	Factory selectable options: Slow/fast combo Slow Fast Superfast
Output Stage Characteristics	Transient/short protected NPN transistor; ZOH = 1051 ohms; ZOL = 63 ohms; where: ZOH High level output source impedance ZOL Low level output sink impedance
Microwave Frequency	24.125 GHz ±50 MHz (except the United Kingdom which is 24.300 GHz)
Microwave Power Level	5mw, nominal
Overall Size	10 x 10 x 31.1 mm (4" x 4" x 12.25")
Weight	2.05kg (4.5 lbs)
Agriculture Environmental Requirements	Product is immune to reverse polarity, EMI and electrical transients such as load dump, alternator field decay, inductive load switching, etc. Operational temperature: -40°C to +85°C. Environmentally durable, i.e., not affected by chemicals, dust, salt spray, rain, wash, and mechanical shock or vibration. Reference: Dj Product Specification and DJ Environmental Specification - Class I [Instrumentation requirements for critical control systems]
Connector	Amp 206429-1 Pin 1 Black Ground Pin 2 Green Signal Out 0-12 VDC Pin 3 Red +12 VDC Battery Pin 4 N/A Radar Presence Note: Pin 3 and Pin 4 are jumpered at the connector.
Matching Connector	Amp 206430-2

†Extended range available upon request.

‡ Basic Sensor Accuracy (Overall Instrumentation System velocity errors of ≤ ±1-3% can be achieved through in-field system calibration)

Specifications Subject to Change Without Notice