ARM-1000
Area Radiation Monitor
Description
The ARM-1000 is a multi-use fixed area radiation monitor designed for continuous room-level monitoring in nuclear, healthcare, and emergency response environments. It contains an internal compensated Geiger Mueller dose rate detector and an external detector port supporting a wide range of Charthouse and third-party radiation detectors — including GMs, scintillators, and proportional counter probes — without additional interfacing hardware.
A large-format dot matrix LED display provides clear dose rate readings at distance, with high-visibility green characters readable in low-light and high-ambient conditions, supported by a 105 dB audible alarm and strobe indicator for immediate alert in noisy or visually demanding environments. The ARM-1000 connects via 900 MHz or 2.4 GHz mesh radio, Wi-Fi, Bluetooth, and Ethernet, making it compatible with existing telemetry infrastructure and third-party monitoring platforms including Charthouse Remote DNA. It provides real-time dose rate monitoring across nuclear facility rooms, proton therapy suites, diagnostic imaging departments, and emergency plan vehicle kits.
Built to IP65, the ARM-1000 operates across a temperature range of -20°C to +50°C and runs from AC mains, 12–24 VDC, or Power over Ethernet. Configuration and calibration are managed via ARM Manager software. The unit includes an internal rechargeable battery for continuity of monitoring during mains interruptions.
When paired with the RD1-6 or RD1-8 detector, the ARM-1000 is a turn-key replacement for the Thermo Scientific RMS-3 / CoDA system, replicating legacy form and functional performance with minimal change costs.
Key Features
Dual-channel display with high-visibility alarm
A large-format dot matrix LED display provides dose rate readings in high-visibility green characters, readable at distance in operational environments. A 105 dB audible alarm and strobe indicator ensure alerts are not missed in noisy facility conditions. Three LED status indicators — High Alarm, Alert Alarm, and Normal — give instant visual status at a glance.
Internal detector plus external detector port
The ARM-1000 carries an internal compensated GM-tube detector and an external detector port supporting a broad range of third-party probes. Variable external detector voltage settings provide universal compatibility with GM detectors, scintillators, and proportional counter probes, including Thermo Scientific DA1-XX series detectors.
Multiple wireless communication options
Supports 900 MHz mesh radio (up to 900 m indoor / 1.6 km outdoor line-of-sight), 2.4 GHz mesh, Wi-Fi, Bluetooth, and Ethernet with PoE. Integrates with Charthouse Remote DNA telemetry and most mainstream third-party remote monitoring platforms. The 900 MHz model suffix is -XT.
Emergency plan vehicle deployment
Designed for drop-and-go deployment in Emergency Plan (E Plan) vehicle kits. Place in vehicle to provide real-time dose rate readings and plume tracking capability in the field without requiring external infrastructure. Battery-backed operation maintains monitoring continuity during vehicle transit and mains-off deployment.
Turn-key Thermo Scientific RMS-3 replacement
When paired with the RD1-6 or RD1-8 detector, the ARM-1000 directly replaces the Thermo Scientific RMS-3 / CoDA system. Similar physical characteristics and mounting requirements to legacy DA detectors. Calibration settings remain compatible. ARM Manager software provides ergonomic configuration and calibration management.
IP65 rated, wide temperature range
Rugged and splashproof enclosure rated to IP65. Operates from -20°C to +50°C. Suitable for permanent installation in facility rooms, temporary outage monitoring positions, and vehicle-mounted emergency response kits.
Control of external devices
A 4–20mA relay signal with three internal contacts (dry or live) enables the ARM-1000 to control or trigger external devices directly — useful for integration into facility alarm and interlock systems without additional hardware.
Product Images
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Specifications
Radiation detection
Internal detector (optional): Compensated GM-tube
Detection ranges: 0.1 mR/hr to 4 R/hr / 1 mR/h to 100 R/h
Power requirements
AC power: 120–240 VAC
DC power: 12–24 V
DC / Power over Ethernet: IEEE 802.3 at / 25.5 W
General
Dimensions (HxWxL, excluding antenna): 31.0 × 17.5 × 12.9 cm
Weight (excluding batteries): 1.7 kg
Operating temperature: -20°C to +50°C
Display
Type: Large-format dot matrix LED display, green characters
External connections
USB: USB configuration port
DE-9: RS-232 / RS-485
RJ-45: Ethernet / PoE
Control of external devices: 4–20mA relay signal, 3 internal contacts (Dry or Live)
900 MHz radio (XT model suffix)
Indoor/Urban RF range: Up to 3,000 ft (900 m)
Outdoor/RF line of sight range: Up to 1 mile (1.6 km)
Transmit power output: Up to 500 mW
Frequency range: 902–928 MHz
Receiver sensitivity: -110 dBm (9600 baud)
FCC Part 15.247: OUR-9XTEND
Industry Canada (IC): 4213A-9XTEND
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