8-Series Slimline Dual Channel Traffic Detector

8-Series Slimline Dual Channel Traffic Detector

'Quick and Simple Install DIN-Rail Mount with Wi-Fi Setup'

The 8 series, Nortech’s new flagship Parking Vehicle Detector addresses the market’s need for a slimline, advanced vehicle detection solution. The powerful architecture facilitates sophisticated algorithms ensuring robust and reliable detection every time. The relay and opto outputs are fully configurable, allowing for alarms and alerts on desired events. Nortech’s Automatic Frequency Selection (AFS) algorithms have been refined and optimised resulting in simplified setup and installation of complex multi-lane traffic sites.

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Product Features & Benefits

The new DU800 wireless diagnostic unit allows for detector configuration and installation feedback of 8 series detectors on any iOS or Android device. This eliminates the need to adjust any mechanical interfaces once the unit has been installed. The DU800 also allows for vehicle profile streaming.

The new slimline, DIN Rail mount housing allows for more physical connections than the traditional relay base. 

Like its forebears, the 8 series detectors simply work, offering peace of mind in even the most complex installation.

The TD280 supports two loops with either relay or opto outputs.


  • Slimline - Can be installed in even the most physically constrained environments
  • AFS - Automatic Frequency Selection (AFS) sets the optimal operating frequency to ensure minimal interference and maximum reliability
  • PowerFail Memory - In the event of a power failure, the TD280 will retain the presence of the vehicle when power is restored
  • Diagnostics - Comprehensive, wireless diagnostics allow for accurate diagnosis of loop and installation problems as well as configuration adjustments to eliminate issues using Nortech’s DU800 and Integr8 App.



Self-tuning range: 20μH to 1000μH
Sensitivity: Ranging from 0.01% ΔL/L to 5% ΔL/L
Automatic Sensitivity Boost (ASB) is selectable
Frequency: Automatic Frequency Selection (AFS) or select from 6 frequency bands 30-150kHz (Frequency is determined by loop geometry)
AFS: Automatically evaluates all frequency bands on startup and selects the most suitable in the given environment based on signal strength and noise
Response Time: Detect: < 30ms ±1ms
Undetect: < 30ms ±1ms
Presence Time: Permanent or limited selectable per channel
Drift Compensation: Incorporated method of tracking changes caused by environmental conditions at a rate approximating 1% ΔL/L per minute
Anti-locking:  Incorporated algorithm accommodates the influence of positive inductance changes to avoid detector lock-up
Relay Outputs: 2 programmable relays with NO, NC and COM connections exposed. Options for presence or pulse, pulse on detect, undetect or fault and each relay has configurable Filter, Delay and Extend options. 
Relay Mode:  Relays can be configured to operate as Fail Safe or Fail Secure
Opto Outputs:
3 Opto outputs provided as an alternative to relays. Each is individually configurable.
Protection:  Polarity protection, loop isolation transformer, zener diode clamping, gas discharge tubes, 50-60Hz Noise Rejection
Power: 12 - 24V ±10% (AC/DC )
90V - 230V ±10% AC 50/60Hz
Connections: DIN Rail mount
3 x 3 Way Connectors and 1 x 4 Way connector
Operating Temp.: -40°C to +80°C
Dimensions: Maximum outer dimensions are 94mm x 94mm x 22.5mm