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Two Way Wireless Dry Contact Electromagnetic Relay 7-24VDC

  • Voltage protection: is activated if the relay supply voltage exceeds the range of 6.5–36.5 V⎓. Protects Relay from voltage surges
  • Temperature protection: is activated if the relay heats up to temperatures above 65°C. Protects relay from overheating
  • The Ajax security system can transmit alarms and events to the PRO Desktop monitoring app as well as the central monitoring station (CMS) via SurGard (Contact ID), SIA DC-09 (ADM-CID), ADEMCO 685, and other proprietary protocols


Actuating elementElectromagnetic relay
Number of switchings⩾ 200,000
Supply voltage range7 – 24 V⎓
Voltage protectionMinimum — 6.5 V⎓
Maximum — 36.5 V⎓
Maximum load current5 A at 24 V⎓
13 A at 230 V~
Operating modePulse or bistable
Pulse duration0.5 to 255 s
Maximum current protectionNo
Parameter controlVoltage
Energy consumption in standby modeUp to 1 W
Radio communication protocolJeweller

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Radio frequency band866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz

Depends on the sales region.
CompatibilityAll Ajax hubs and radio signal range extenders
Maximum radio signal strengthUp to 25 mW
Radio signal modulationGFSK
Radio signal range1,000 m (in an open space)

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Polling interval12–300 s (36 s by default)
Protection classIP20
Operating temperature range-20°C to +64°C
Maximum temperature protectionOver +65°C at the place of installation
Over +85°C inside Relay
Operating humidityUp to 85% with no condensation
Dimensions39 × 33 × 18 mm
Weight25 g
Service life10 years