Survey meter with Natural Background Rejection (NBR) that separates naturally occurring radioactive material from manmade radiation and signals the result with a red or green LED.
The FH 40 G NBR combines an FHZ 672 E series scintillator probe with the FH 40 G multi-purpose survey meter. Measuring simultaneously with the FH 40 G extends the measuring range. Stored measurements can be viewed on the display and transferred to a PC via the FH 40 GL-10 interface.
Typical users include first responders, civil defence, fire brigades, law enforcement and special forces, as well as environmental monitoring and remediation.
No prices online – you will receive a quotation with price and delivery time. Need accessories? Mention them in your request.
| Operational system | FH 40 G series survey meter, FH 40 G type connection cable and FHZ 672 E series probe |
|---|---|
| Probe versions | FHZ 672 E (dose rate in R/h, 0.1 µR/h to 10 mR/h), FHZ 672 E-10 (ambient dose equivalent H*(10) in Sv/h, 1 nSv/h to 100 µSv/h) |
| Measurement range, FH 40 GL-10 only | 500 nSv/h to 100 mSv/h |
| Energy range | FHZ 672 E-10: 48 keV to 6 MeV; FH 40 GL-10 alone: 30 keV to 4.4 MeV |
| Detection limit of artificial gamma radiation | < 20 % of natural dose rate, typically |
| Operation time with NBR detector | approx. 30 h |
| Probe dimensions (L × W × H) | 405 × 110 × 240 mm |
| Probe weight | 3.9 kg (without FH 40 G device and connection cable) |
| Probe IP protection rate | IP 52 |
| Operating temperature, FH 40 G | −30 °C to 55 °C |
Source: Thermo Fisher Scientific, product page FH40NBR (2026). Full specifications are available in the documents.
