Functions & Features : 1) Reset Switch : The reset switch enables the detector to be manually reset during registering and testing and it is a process of system recovery; 2) Selectable Pulse Time : This feature sets the length of time that the pulse relay will be lasting for 1 Second or 0.5 Seconds ; 3) Pulse Relay Selection : The Pulse Relay may be configured to energize on detection of a vehicle or when the vehicle leaves the loop; 4) Sensitivity Reinforcement : This feature sets the un-detecting level to a maximum sensitivity to prevent failing to detect vehicles as big trucks; 5) Switch Sensibility Adjustable : 4 sensitivity setting are available on the switches to change sensitivity ; 6) Switch Frequency Adjustable : 4 frequency settings are available to prevent signal interference with neighboring loops ; 7) Filtering Option : This option is used to provide a delay between detection of the vehicle and switching of the output relay . This relay is normally used to prevent false detection of small or fast moving objects ; 8) Permanent Presence Option : This feature ensures the detection of the vehicle will be maintained when the vehicle stays within the loop area for extended periods Technical Data: 1. Supply voltage: 220V AC 2. Voltage tolerance AC: +10% / -15% 3. Voltage tolerance DC: ±15% 4. Power Consumption: 4.5VA 5. Operating temperature: -20°C to +65°C 6. Storage temperature: -40°C to +85°C 7. Frequency range: 20 kHz to 170 kHz 8. Reaction time: 10ms 9. Signal lasting time: Unlimited / limited when loop is permanently covered 10 minutes 10. Sensitivity: Adjustable 11. Loop inductance: Total loop plus connection wiring: 50μH to 1000μH; Ideal is 100μH to 300μH 12. Loop connection wiring: Maximum length 20 meters, twisted at least 20 times per meter 13. Dimension: 78x40x108mm (L x W x H) 14. 10 dip switches