The DPX128 is a battery powered siren to complement intrusion alarms.

Features:
- Double protection, plastic cover (3 mm) and metal inner case (0.8 mm).
- Alternating sound signal during an alarm.
- Tamper protection (can be set at the switch NO / NC, sliding shoe).
- Positive and negative starting options.
- Negative start mode for the light indicator.
- Adjustable siren cut-off time (3 minutes).
- Battery discharge protection.
- Detachable connection line.
- Adjustable power supply side in case of alarm (SCA jumper).

Specifications:
- Nominal sound pressure value: 120 dBA.
- Frequency: 1850Hz.
- Flashing: 12 VDC / 5 W.
- Power supply: 13.8-14.2 VDC.
- Charging current: 250 mA.
- Quiescent current consumption: 8 mA.
- Alarm current consumption: 1600 mA (at 13.8 VDC).
- Maximum power: 50 W.
- Tamper switch: NC / NO (28 VDC / maximum 100 mA) with adjustable sliding shoe.
- Applicable battery: 12 VDC /1.2 Ah in normal position.
- Outer casing: ABS (3 mm).
- Inner cover: metal (0.8 mm).
- Dimensions: 275 x 190 x 95 mm.
- Weight (without battery): 1.85 kg.
- Operating temperature: -30°C... + 60°C.