Houston Radar’s SS400 Doppler sign activation/speed sensor/Doppler Radar is a state of the art milli-power Digital Signal Processing (DSP) based K-band radar for the sign activation and traffic calming markets. It is the premier product in its class available in the world.

SS400 Open Frame

SS400 Open Frame

SS400 Weatherproof

SS400 Weather Proof

  • World’s smallest and lowest power usage OEM K-Band Doppler radar at 0.05 Watts, 12X lower than our DR500S radar and up to 50X lower than some other industry offerings
  • 300+ feet (90+m) typical pickup range for a compact vehicle
  • Ground speed tracking and measurement mode
  • FCC pre-approved with CE mark
  • Fully configurable via RS232 serial port for all settings
  • Simple rotary switch or thumbwheel input possible to set threshold
  • Wide input operating range allows solar operation
  • 1.75Wx1.65Hx0.5D in (44x42x12 mm) open frame ultra-thin profile
  • 1.9Wx2.1Hx0.9D in (4.5×4.8×2.4 cm) weatherproof enclosure option
  • Firmware “boot loader” allows for field upgrading of firmware
  • Two LED Lamp outputs to drive 1.8W LED lamps with dimming
  • One photo sensor input to sense ambient light to dim LED lamps
  • 100% self-test feature built-in including self power usage
  • Best in class “Advanced In-Radar” traffic statistics option available
  • True Average Speed feature built-in for very low cost, easy to deploy, average traffic speed measurements on the road
  • IO expansion board w/ DB9 connector, rotary s/w and isolated high power output available

Specification

Recommended Condition

Vcc

6.0V to 18VDC

Icc@12VDC

4.5 mA (0.054 Watts)

Radar RF out

5 mW maximum

Radar fcenter

24.125GHz or 24.200 GHz

Operating °F (°C)

-40 (-40) min to 185 (85) max

Pickup Distance

300+ feet (90+ m) in most cases

SS400 Speed Measurement Range

0.66mph to 220 mph (1.06km/h to 354 kph)

SS400U Speed Measurement Range

0.16mph to 55mph (0.25 km/h to 88 km/h)

Beam Angle

38°x45°

Beam Polarization

Linear

Lamp 1 & 2 out

135 mA max each up to 60VDC

Lamp dimming

180 Hz PWM from 5 to 100 %

LDR light input

0 to 3.3V input

FCC ID

TIASS400

CE Mark

Yes

Dimensions

Open frame

1.75Wx1.7Hx0.5D”
(44x42x12 mm)

Boxed
1.9Wx2.1Hx0.9D”
(4.5×4.8×2.4cm)

Weight

0.05Kg (0.1 lbs) approx

Pin #

Function

1 (Triangle Mark)

GND

2

Do not connect

3

Reserved. Do not connect

4

Reserved. Do not connect

5

Reserved. Do not connect

6

Reserved. Do not connect

7

Trigger "open drain" output #1

8

Trigger "open drain" output #2

9

RS232 Transmit from radar

10

RS232 Receive into radar

11

VCC

12

GND

Wire Signal Description

Part #

Image

Accessory

Description

Added Cable*

Added cable for weatherproof radars past the standard 2 feet

JBX

Junction Box*

Junction Box

Stat/Alc

Advanced In-Radar Statistics for Data Logging

SS300 IO Board

SS400 Radar Input/Output Connector Interface board w/ DB9 connector, speed threshold s/w and sensitivity setting

PD300 IO Board

PD300/SS400 Radar Input/Output Connector Interface board w/ DB9 connector. No Mosfet or rotary switch.

900-0017

SS400 Open Frame Interface Cable

SS400 open frame interface cable with female Molex connector to female DB9

900-0021

SS400 Weatherproof Interface Cable

SS400 weatherproof interface cable with male Molex connector to DB9

USB-RS-P1

USB Power Dongle

USB power supply and PC COM port serial interface for Houston Radar sensors

120-0010

Front View

Back View

Tuning Fork

3310Hz 46MPH Radar frequency check tuning fork

BT-RS-P1-E-DTE

External Antenna Bluetooth

Class 1 long range Bluetooth module with male DB9 and external antenna in DTE configuration

900-0007

Y Cable Option 1

DB9 Female to 2x DB Male "Y" cable for DR600-DFT

900-0025

Y Cable Option 2

DB9 Female to 1X DB9 Male and 1x DB9 Female "Y" cable for DR600-DFT to power Houston Radar Bluetooth module from pin #1 on Female "Y" DB9 end

900-0014

SS400 Open Frame DB9 Cable

SS300 Open frame 12 core 2feet (0.5m) 1:1 cable with female Molex connector on both ends.

*Needs to be ordered with the original order or subject to an upgrade fee.