
Portable equipment that, combined with the FH 40 G survey meter, measures alpha and beta contamination in samples on site.
The FH 40 Lab-1 is an efficient supplement to the FH 40 G multipurpose survey meter for first responder task forces. The sample is placed in the sample holder with the FHZ 732 GM probe above it, and the measurement is made with the FH 40 G using preset time or preset count. The equipment strongly reduces the loss of time in emergencies involving radioactive contamination.
It is in use with German civil defence authorities, in a system that combines the FH 40 G with an FHZ 672-2 NBR scintillation probe to detect low levels of artificial gamma radiation while driving, with the measured track shown automatically on a GPS-supported digital map.
No prices online – you will receive a quotation with price and delivery time. Need accessories? Mention them in your request.

| Probe | FHZ 732 GM alpha-beta-gamma probe for Radiameter FH 40 G |
|---|---|
| Overall size | 245 mm × 68 mm |
| Weight | 0.32 kg |
| Detector window | ~ 2 mg/cm², Ø 44 mm |
| Sensitive area | 15 cm² |
| Measuring range | 0.1 – 10,000 cps |
| Background | ~ 0.6 cps |
| Sensitivity (filters) | ~ 15 % (Am-241), ~ 25 % (Cs-137) |
| Gamma | ~ 4 cps/µSv/h (Cs-137) |
| Temperatures | −30 °C to +50 °C operation, −40 °C to +70 °C storage |
| Sample holder FHT 770 G | Brass, base plate 160 × 10 mm, sample holder 95 × 60 mm, total height ~ 100 mm incl. grip, weight 3.7 kg |
| Case dimensions | 430 × 305 × 105 mm |
Source: Thermo Fisher Scientific, FH 40 LAB-1 product specifications (2007) and product page 425407730. Full specifications are available in the documents.