Thermo Scientific™

FH 40 G Multi-Purpose Digital Survey Meter

Catalog number: 4254002

Related applications: Radiation Detection & Measurement

Technical SupportCustomer Service

FH 40 G Multi-Purpose Digital Survey Meter

Thermo Scientific™

FH 40 G Multi-Purpose Digital Survey Meter

Catalog number: 4254002

Related applications: Radiation Detection & Measurement

Technical SupportCustomer Service

Serve multiple radiation detection applications with one versatile instrument. The Thermo Scientific™ FH 40 G is a wide range digital Geiger counter suitable for nearly all measurement tasks arising in radiation protection through optional plug and play probes available for neutron measurement, alpha and beta contamination readings and even to detect artificial gamma radiation in variable natural radiation fields.

Catalog Number

4254002

Unit Size

Each

Description

Without extra earphone connection, measuring range 1 µR/h-100 R/h

Price (USD)

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Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connection, measuring range 1 µR/h-100 R/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R
Measuring Range	1 µR/h-100 R/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: 10pR/h-99 R/h, 36 keV to 1.3MeV
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Without earphone connector, measuring range 0.1 to 99 Sv/h

Price (USD)

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Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without earphone connector, measuring range 0.1 to 99 Sv/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H*(10)) - Sv
Measuring Range	0.1 to 99 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: 0.1pSv/h-0.99Sv/h, 36 keV to 1.3MeV
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Without earphone connector, measuring range up to 10 R/h

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without earphone connector, measuring range up to 10 R/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 10 R/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 10R/h, 36 keV to 1.3MeV
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Without extra earphone connection, measuring range up to 0.1 Sv/h

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connection, measuring range up to 0.1 Sv/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 0.1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 0.1Sv/h; Calibrated in Sv/h
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Calibrated in R/h, with earphone connector

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Calibrated in R/h, with earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 10 R/h
Sensitivity	> 30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 10 R/h, calibrated in R/h; extra earphone connector
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Without extra earphone connector

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 1Sv/h; 30 keV to 4.4MeV
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Calibrated in Sv/h, with extra earphone connector

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Calibrated in Sv/h, with extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: Up to 1Sv/h; 30 keV to 4.4MeV; Calibrated in Sv/h
Unit Size	Each

Catalog Number

Unit Size

Each

Description

Export version with selectable calibration factor

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Export version with selectable calibration factor
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

Catalog Number

Unit Size

Each

Description

No nanosievert units

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	No nanosievert units
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

Catalog Number

Unit Size

Each

Description

With extra earphone connector

Price (USD)

Request A Quote

Full specifications

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	With extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

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Catalog Number Specifications Unit Size Description Price (USD)

4254002

Full specifications

Each

Without extra earphone connection, measuring range 1 µR/h-100 R/h

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connection, measuring range 1 µR/h-100 R/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R
Measuring Range	1 µR/h-100 R/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: 10pR/h-99 R/h, 36 keV to 1.3MeV
Unit Size	Each

Full specifications

Each

Without earphone connector, measuring range 0.1 to 99 Sv/h

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without earphone connector, measuring range 0.1 to 99 Sv/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H*(10)) - Sv
Measuring Range	0.1 to 99 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: 0.1pSv/h-0.99Sv/h, 36 keV to 1.3MeV
Unit Size	Each

Full specifications

Each

Without earphone connector, measuring range up to 10 R/h

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without earphone connector, measuring range up to 10 R/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 10 R/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 10R/h, 36 keV to 1.3MeV
Unit Size	Each

Full specifications

Each

Without extra earphone connection, measuring range up to 0.1 Sv/h

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connection, measuring range up to 0.1 Sv/h
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 0.1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 0.1Sv/h; Calibrated in Sv/h
Unit Size	Each

Full specifications

Each

Calibrated in R/h, with earphone connector

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Calibrated in R/h, with earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 10 R/h
Sensitivity	> 30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 10 R/h, calibrated in R/h; extra earphone connector
Unit Size	Each

Full specifications

Each

Without extra earphone connector

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Without extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: up to 1Sv/h; 30 keV to 4.4MeV
Unit Size	Each

Full specifications

Each

Calibrated in Sv/h, with extra earphone connector

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Calibrated in Sv/h, with extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 1 Sv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Item Description	Measuring range: Up to 1Sv/h; 30 keV to 4.4MeV; Calibrated in Sv/h
Unit Size	Each

Full specifications

Each

Export version with selectable calibration factor

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	Export version with selectable calibration factor
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

Full specifications

Each

No nanosievert units

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	No nanosievert units
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

Full specifications

Each

With extra earphone connector

Request A Quote

Radiation Type	Dependent on probe used
Type	Digital Survey Meter
Description	With extra earphone connector
Dose Range	FH 40 G: 10 µR - 1000 R; FH 40 G-L, FH 40 GL-omega: 10 µR - 100 R; FH 40 G-10: 100nSv - 10 Sv
Energy Range	FH 40 G: 36 keV to 1.3MeV; FH 40 G-L: 36 keV to 1.3 MeV; FH 40 G-10: 30 keV to 4.4 MeV; FH 40 GL-omega: 36 keV to 1.3 MeV
Height (English)	1.7 in.
Height (Metric)	4.2 cm
Depth (English)	7.7 in.
Depth (Metric)	195 mm
Measured Quantity	FH 40 G, FH 40 G-L, FH 40 GL-omega: Response (Roentgen) - R; FH 40 G-10: Ambient dose equivalent rate (H™(10)) - Sv
Measuring Range	Up to 100mSv/h
Sensitivity	>30keV
Weight (English)	0.9 lb.
Weight (Metric)	0.41 kg
Width (English)	2.9 in.
Width (Metric)	7.4 cm
Certifications/Compliance	Meets IP 67 requirement for waterproofing; shock-resistence / NRPB approved (UK); ICRU 39 for SI-units
Unit Size	Each

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The FH 40 G is a versatile multipurpose Geiger counter and area monitor that can be used with external detectors for portable and remote area monitoring applications.

Rugged, waterproof and reliable with very simple operation.
Gamma meter with internal proportional counter tube.
Integrated gamma dose rate measurements.
Interface for one optional, external plug and play probe.
Alarm thresholds for the internal detector and external probes of the FH 40 G are monitored simultaneously.
Upon connection of an external plug and play probe, the probe parameters are automatically read into the FH 40 G and the correct parameters are set.
High voltage generation inside the plug and play probe makes the system calibration independent of cable length.
Separate alarms can be set by the user for both the internal and external detectors.
Operational internal proportional detector and connected external detector.
Serial infrared interface.
Type tested by PTB (German version).
Type tested for use by German fire brigades.
Simultaneous operation of internal and external detectors, both dose rate and remote dose rate readings.
Configuration and data read out via PC.
Waterproof (IP 67) and shock resistant.
ADF mode (Advanced Digital Filter).
Clear, backlit LCD display.
Datalogging capability.
Internal diagnostics ensure proper functioning of the detector(s) and the electronics.
Designed to record up to 256 data points containing measurement number, date, time and dose rate at the internal detector and external detector, status, and optional barcode information.
Wide range of plug and play external probes for monitoring and detection.
All FH 40 G versions and external probes containing the “-10” suffix are designed to meet the energy response behavior of the new SI-units ambient dose equivalent and ambient dose equivalent rate according to ICRU 39.

Short summary of available plug and play probes:

Gamma dose rate measurement: FHT 192 (ionization chamber), FHZ 632 (proportional counter), FHZ 612 (wide range), FHZ 302/312 (under water nuclear power).
Gamma search probes: FHZ 502, 503, 512 (NaJ/BGO).
Contamination: FHZ 742 (Scintillator), FHZ 732 (Pancake/proportional counter), FHZ 382 (Scintiallator + Alpha/Beta discriminator via LED indication if alphas are present).
Aritificial radiaiton discrimination: NBR probe FHZ 672.
Preamplifiers for various classic probes.
Wide range of accessories like cables, telepoles, application specific kits, etc.

FH G and FH 40 G-L series meters (4254002, 425400201, 425400250, 425400251, 4254004, 425400401, 425400450, 425400451) are not for sale in the UK

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