Brand : Cardteck Type : SL110 Supply voltage: 220V AC Voltage tolerance AC: +10%/-15% Power Consumption: 4.5W Output relays: 240V/5A Operating temperature: -20C to +65C Storage temperature: -40C to +85C Frequency range: 20 kHz to 170 kHz Reaction Time: 100ms Presence Time: Permanent Sensitivity:Adjustable in 3 levels Loop inductance:Total loop plus connection wiring:50H to 1000H/Ideal is 100H to 300H