Handheld Gamma–Neutron Search and Alert Device

Gamma–neutron interdiction on patrol

The PM1703GNA-II BT is a compact gamma–neutron personal radiation detector (PRD) built for border lanes, scrap yards, ports, and CBRNe teams who need to find sources quickly, not babysit a survey meter.

A CsI(Tl) gamma channel and a dedicated ^6LiF/ZnS neutron detector give true dual-modality coverage from NORM-heavy yards to special nuclear material. With modular pager-style hardware, USB and Bluetooth® 4.0, plus the Polismart® companion app, you get an end-to-end workflow from live search to GPS-tagged evidence and standards-based reporting.

Why Teams Choose PM1703GNA-II BT?

• Dual-modality coverage: Gamma and neutron detection in one pager: CsI(Tl) for photons, ^6LiF/ZnS for neutrons.
• Rapid interdiction: 0.25 s response and high sensitivity: quickly distinguish real threats from background while on the move.
• NORM-smart alarms: NORM suppression and IND/NUC/MED logic: fewer nuisance alarms in yards, terminals, and built-up areas.
• Rugged, patrol-ready build: IP65, −40 to +50 °C, up to 98% RH, and AA power: works in Aussie heat, cold, and rain.
• Connected workflow: USB and Bluetooth with Polismart® app: GPS mapping, 2000-event history, and ANSI N42.42-style exports for HQ.

What’s in the Kit?

PM1703GNA-II BT instrument, belt clip or holster, AA alkaline battery, USB cable, PC user software (download), quick start guide, factory calibration/test certificate, soft carry case (kit contents may vary by supplier).
CTA: Equip your patrols with PM1703GNA-II BT today – align frontline interdiction with internationally compliant gamma–neutron detection and auditable data.

PM1703GNA-II BT Key Specs

• Function: Gamma–neutron alarming personal radiation detector (PRD)
• Gamma detector: CsI(Tl) scintillation crystal with SiPM readout
• Neutron detector: ^6LiF/ZnS scintillator (thermal to fast)
• Gamma energy range: 33 keV – 3.0 MeV
• Neutron energy range: Thermal – 14 MeV
• Gamma sensitivity: ~100 cps/µSv/h (¹³⁷Cs); ~500 cps/µSv/h (²⁴¹Am)
• Neutron sensitivity: ≥0.035 counts·cm²/n (Pu–Be); ≥1.2 counts·cm²/n (thermal)
• Dose-rate (Hp(10)) range: 0.1 – 300 µSv/h (typical indication down to 0.01 µSv/h)
• Dose-rate accuracy: ±30 % (0.1–300 µSv/h, ¹³⁷Cs)
• Response time: 0.25 s in search mode
• Operating modes: Gamma/neutron search, dose-rate, 0–9 index mode
• Alarms: Visual, audible, vibration; NORM vs IND/NUC/MED differentiation
• Memory: 2000 events, ANSI N42.42-style history structure
• Interfaces: USB, Bluetooth 4.0 (BT model)
• Power: 1 × AA (LR6) alkaline or NiMH; ≈800 h typical (≈400 h with BT active)
• Environmental: −40 to +50 °C; up to 98% RH at +35 °C; 84–106.7 kPa
• Ruggedness: IP65; shockproof hermetic case; drop-tested pager form factor
• Dimensions / weight: ~87 × 72 × 32 mm; ≤200 g
• Standards (design basis): ANSI N42.32, IEC 62401, ANSI N42.42; ITRAP/IAEA-compliant performance

Frequently Asked Questions

What radiation does the PM1703GNA-II BT actually detect?

It detects gamma radiation from 33 keV to 3 MeV using a CsI(Tl) scintillator and neutrons from thermal up to about 14 MeV using a ^6LiF/ZnS detector, giving genuine dual-modality coverage in one pager-sized unit.

Is this a full personal dosimeter?

It measures personal dose-rate Hp(10) from 0.1 to 300 µSv/h but does not integrate dose into Sv. For Sv-range dosimetry, you’d step up to the PM1703GNA-II MBT, which adds a GM tube for higher-dose fields and accumulated dose.

How tough is it for Australian field conditions?

The instrument is IP65 rated, operates from −40 to +50 °C and up to 98% relative humidity, uses a shockproof sealed housing, and runs on a single AA cell, making it suitable for everything from inland checkpoints to coastal ports.

What software and devices does it work with?

You can connect via USB to Polimaster’s Windows user software for configuration and data download, or via Bluetooth 4.0 to the Polismart® app on compatible iOS and Android phones for live readout, GPS mapping, and cloud export.

What standards does the PM1703GNA-II BT support?

It is designed in line with ANSI N42.32 and IEC 62401 PRD performance standards, uses an ANSI N42.42-style event format, and has been tested against ITRAP/IAEA benchmarks used by many government buyers.

Compliance note: End users are responsible for confirming local regulatory approvals, calibration intervals, and export/import controls before deploying PM1703GNA-II BT in operational or cross-border environments