Ajax 38204.19.NC1 Dry Contact Relay to control 12-24 V power supply remotely
The Ajax Dry Contact Relay to control 12-24 V power supply remotely is a wireless expansion module — Wireless dry-contact relay for remote switching of 12-24 V powered equipment via Ajax automation scenarios.
Part of the Ajax professional wireless security range — Jeweller two-way radio with encryption, frequency hopping and anti-jamming, controlled from the Ajax mobile app and commissioned remotely with Ajax PRO. EN 50131 Grade 2 system support with optional ARC / CMS monitoring.
Key Features
- Wireless dry-contact relay for 12-24 V equipment
- Switches gates, locks, lighting or low-voltage circuits via Ajax scenarios
- Two-way Ajax Jeweller radio - encrypted, frequency-hopping and jamming-resistant
- Energy-monitoring and manual override
- Triggered by arming, disarming, schedules or detector events
- Compact in-line installation
Ajax Dry Contact Relay to control 12-24 V power supply remotely — Wireless Alarm Expansion Module
Wireless dry-contact relay for remote switching of 12-24 V powered equipment via Ajax automation scenarios.
Overview
The Ajax Dry Contact Relay to control 12-24 V power supply remotely is a wireless expansion module from the Ajax professional wireless security range - two-way Jeweller radio with encryption, frequency hopping and anti-jamming supervision, all managed from the Ajax app. Wireless dry-contact relay for remote switching of 12-24 V powered equipment via Ajax automation scenarios.
A wireless dry-contact relay that switches 12-24 V equipment - gates, locks, lighting or low-voltage circuits - on Ajax automation scenarios, schedules or detector events, with manual override.
Programmed through Ajax PRO and controlled in the Ajax app. Two-way Ajax Jeweller radio with encryption, frequency hopping and supervision keeps the module reliably connected to the hub.
Construction: tamper-protected enclosure with communication and battery supervision. CE / UKCA / RED / RoHS approved. Same-day dispatch from Netview CCTV Leicester — UK Ajax stockist — with trade pricing on stocked Ajax product.
Key Features
- Wireless dry-contact relay for 12-24 V equipment
- Switches gates, locks, lighting or low-voltage circuits via Ajax scenarios
- Two-way Ajax Jeweller radio - encrypted, frequency-hopping and jamming-resistant
- Energy-monitoring and manual override
- Triggered by arming, disarming, schedules or detector events
- Compact in-line installation
Typical Applications
- Gate and door-release control
- Lighting on arm / disarm
- Maglock / access-control triggering
- Low-voltage equipment switching
- Trade installs needing same-day stock - Netview CCTV Leicester ships Ajax from UK stock
Compatible Ajax Devices
- Ajax hubs - Hub 2, Hub 2 Plus, Hub Hybrid
- Ajax app (iOS / Android) - remote arm / disarm / notifications
- Ajax PRO app and Ajax PRO Desktop for installer commissioning
What's in the Box
- 1 × Ajax Relay Jeweller
- 1 × SmartBracket / mounting kit
- 1 × battery (pre-installed where applicable)
- 1 × quick start guide
📄 Download: Ajax Relay Jeweller Datasheet (PDF) — full technical specification, radio, battery and mechanical detail.
Detailed Specifications — Ajax Dry Contact Relay to control 12-24 V power supply remotely
Full technical specification for the Ajax Dry Contact Relay to control 12-24 V power supply remotely, drawn from the official Ajax datasheet.
| Identification | |
|---|---|
| SKU | 38204 |
| MPN | 38204.19.NC1 |
| EAN | 856963007613 |
| Brand | Ajax |
| Product Type | Wireless Alarm Expansion Module |
| Detection / Function | |
| Detection / Function | Dry-contact relay (NO/NC) |
| Radio & Communication | |
| Radio Technology | Ajax Jeweller |
| Transmission | Two-way encrypted RF |
| Encryption | Block encryption (AES-based) |
| Open-space Range | up to 1700 m |
| Frequency Hopping | Supported |
| Anti-Jamming | Supported with notifications |
| Supervision | Automatic device polling |
| Power | |
| Power Supply | Powered from controlled circuit |
| Low-Battery Reporting | Supported to the hub |
| Mechanical & Environment | |
| Tamper Protection | Yes |
| Installation | SmartBracket / surface mount |
| Operating Temperature | -10 C to +40 C |
| Compatibility | |
| Ajax Hubs | Hub 2, Hub 2 Plus, Hub Hybrid |
| End-User App | Ajax app (iOS / Android / desktop) |
| Installer Tools | Ajax PRO / Ajax PRO Desktop |
| Monitoring | ARC / CMS via SIA-DC09 (Contact ID / SIA) |
| Approvals | |
| Certifications | CE, UKCA, RED, RoHS |
| Security Grade | EN 50131 Grade 2 / PD 6662:2017 compatible |
Documentation — Ajax Dry Contact Relay to control 12-24 V power supply remotely
Download the official Ajax datasheet for the Relay Jeweller, plus related Ajax alarm categories on netviewcctv.co.uk.
| Document | Format | Link |
|---|---|---|
| Ajax Relay Jeweller Datasheet | Download datasheet | |
| Browse all Ajax Expansion Modules | Web | View Ajax Expansion Modules |
| Browse the full Ajax range | Web | View Ajax wireless alarms |
| Browse all Alarm Systems at Netview CCTV | Web | View alarm systems |
| Contact Netview CCTV (trade pricing & support) | Web | Contact our trade team |
Netview CCTV — UK Ajax stockist (Leicester). For trade pricing on Ajax product, contact our team on 0116 3800 838 or [email protected].





