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ULD 923 double induction loop

151,52 excl. VAT

Hotron's ULD 923 is an underground induction loop with a double coil for the detection of industrial vehicles. In particular, this sensor is suitable for the detection of high trailers of trucks and has 4 adjustable frequency ranges (20-140 kHz).

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Detection of vehicles with high beds

A wide frequency range that adjusts itself as necessary for reliable vehicle detection at industrial doors. Hotron's ULD induction loop is especially suitable for detecting trucks with a higher trailer.

Preventing vehicle damage

The induction loop is equipped with an output for permanent presence. This prevents that the door, gate or barrier closes on a static vehicle.

Energy loss reductions

Internally, the ULD923 double loop induction loop recognizes the direction of movement of the present vehicle and can limit the hold time of doors accordingly. This ensures a reduction in energy waste.

Cost efficiency

With Hotron's ULD induction loops it is possible to control two induction loops with just one controller. This offers a cost-effective solution.


LED indicators

Response time

100 ms, 120 ms

Switching frequency

20 - 140 kHz


Induction loop


NC, NO, Relay

Amount of outputs




Power supply

12 - 24 Vac, 12 - 24 Vdc, 230 Vac, 230 Vdc

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