QDT900
QDT900 perimeter curtain detector with dual infrared and microwave technology, designed to provide outdoor protection up to 10 meters on each side, with a 10-degree detection angle
Accurate and focused outdoor protection
Standards-compliant reliability, flexible installation
In the Air2 version, the detector delivers a 10‑meter detection range on each side, for a total of 20 meters. It is powered by three lithium batteries that ensure long operating life, while the radio module enables transmission of alerts, including low‑battery notifications. Advanced functions such as anti‑masking, anti‑blinding, anti‑tamper protection and automatic temperature compensation make it ideal for outdoor installations, even in demanding conditions. The QDT900 is available either as a low‑power stand‑alone unit or as a wireless model. It features anti‑blinding protection and allows wide customization of detection range and sensitivity, ensuring full adaptability to any installation scenario. Offering maximum reliability and excellent installation flexibility, the QDT900 is designed to meet the demands of any environment.
This product is available in the following versions
Technical specifications
| Air2-QDT900W | QDT900H | QDT900U | |
| Power supply voltage | 3 ER14505M Lithium batteries – 3.6 V (estimated life 3 years) | 11,5 ~ 14,5 V | 3 ER14505M Lithium batteries – 3.6 V (estimated life 3 years) |
| Current draw | 25 mA | ||
| Protection | Tamper protection – Anti-dislodgement – Anti-masking | Tamper protection – Anti-dislodgement – Anti-masking | Tamper protection – Anti-dislodgement – Anti-masking |
| Coverage | 10 + 10 m | 10 + 10 m | 10 + 10 m |
| Temperature range | - 20 + 70 °C | - 20 + 70 °C | - 20 + 70 °C |
| Environmental class | III | III | III |
| Protection grade | IP 54 | IP 54 | IP 54 |
| Dimensions | 160 x 160 x 40 mm | 160 x 160 x 40 mm | 160 x 160 x 40 mm |
| Weight | 390 g | 390 g | 390 g |
