SE International Meters
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SE International offers a wide range of instruments to measure radiation a variety of industries and applications. These include emergency response, nuclear medicine, when using nuclear substances and radiation devices, Naturally Occurring Radioactive Material (NORM), industrial hygiene. SE International handheld meters are also popular amongst geologists and hobbyist rock collectors.
Contamination
Ranger
The Ranger is a small, handheld, microprocessor-based instrument which offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, external calibration controls and adjustable alert.
Maximum performance in a lightweight, rugged solution for surveying at the facility or in the field. Designed for industrial environments, but has all the features you’ve come to love in the lab.
Internal memory and the free Observer USB Software allow you to download your data, set computer alarms, and calibrate your instrument!
Detector | Internal, thin-window, uncompensated GM tube with thin mica window. Effective diameter of window is 45 mm (1.77 in.) |
Radiation Detected | Alpha and beta with some gamma response |
Energy Sensitivity | Alpha: > 2 MeV Beta: >160 keV Gamma: > 10 keV |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 100 CPM: 0 – 350,000 µSv/h: 0.01 – 1000 CPS: 0 – 5000 |
Physical Specs | 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.) 291 g (0.64 lbs.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Optional Accessories
Wipe Test Plate, Swipes, Water Resistance Case
Warranty
1 year limited warranty
Ranger EXP
The Ranger EXP offers everything that the Ranger does but with an external pancake detector for better access in hard-to-reach spaces. The Ranger EXP offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, external calibration controls and adjustable alert.
Maximum performance in a lightweight, rugged solution for surveying at the facility or in the field. Designed for industrial environments, but has all the features you’ve come to love in the lab.
Internal memory and the free Observer USB Software allow you to download your data, set computer alarms, and calibrate your instrument!
Detector | Internal, thin-window, uncompensated GM tube with thin mica window. Effective diameter of window is 45 mm (1.77 in.) |
Radiation Detected | Alpha and beta with some gamma response |
Energy Sensitivity | Alpha: > 2 MeV Beta: >160 keV Gamma: > 10 keV |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 100 CPM: 0 – 350,000 µSv/h: 0.01 – 1000 CPS: 0 – 5000 |
Physical Specs | Meter Body: 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.), 291 g (0.64 lbs.) External Pancake: 260 X 25 mm (10.25 X 1 in.) Dia : 70 mm (2.75 in.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Optional Accessories
Wipe Test Plate, Swipes, Water Resistance Case
Warranty
1 year limited warranty
Dose Rate
Monitor 200
The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, μSv/hr, mR/hr, or in accumulated counts. It has a digital display, a red count light, and a beeper that sounds with each count detected. Other features include an adjustable timer, and selectable alert. With the free Observer USB Software Family, you can set computer alarms, calibrate your instrument, and download your collected data from the internal memory for easy reporting!
Detector | Halogen-quenched GM tube with thin mica end window. Effective window diameter is 0.36″ (91 mm), side wall is 0.012″ (3 mm) thick. |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: >50 keV (typical 35% detection efficiency) Gamma: > 10 keV through tube window |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 200 CPM: 0 – 235,400 µSv/h: 0.01 – 2,000 CPS: 0 -3,923 |
Physical Specs | 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.) 181 g (0.4 lbs.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Warranty
1 year limited warranty
Monitor 4
Simple and ergonomic, the Monitor 4 is compact, analog radiation detector. A general purpose survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. Proven and reliable over decades of use in the industry, the Monitor 4 has evolved into one of the best analog radiation detectors of today.
Detector | Halogen-quenched GM tube with thin mica end window. Effective window diameter is 0.36″ (9.1 mm), side wall is 0.012″ (3 mm) thick. |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: 150 keV (75% efficiency) > 50 keV (35% efficiency), Gamma: > 10 keV through tube window |
Measurement Modes | Analog Display: Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) Range Switch: x1, x10, x100, battery check |
Operating Range | mR/h: 0.001 – 200 CPM: 0 – 235,400 µSv/h: 0.01 – 2,000 CPS: 0 -3,923 |
Physical Specs | 209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.) 200 g |
Battery | 9-volt alkaline battery ~ 2,000 hours at normal background |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case
Warranty
1 year limited warranty
Monitor 4EC
The Monitor 4EC is an energy compensated, ergonomic radiation survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a linear response for gamma and x-rays (above 40 keV).
Detector | Halogen-quenched GM tube, energy compensated sidewall 2 mm thin filter. Thin mica window 1.5-2.0 mg/cm2 thick. Effective window diameter is 0.36″ (9.1 mm). |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: 150 keV (75% efficiency) > 50 keV (35% efficiency), Gamma: > 10 keV through tube window |
Measurement Modes | Analog Display: Counts per minute (cpm), microsieverts per hour (µSv/h), milliroentgen (mR/h) Range Switch: x1, x10, x100, battery check |
Operating Range | mR/h: 0 – 50 CPM: 0 – 50,0000 µSv/h: 0 – 500 |
Physical Specs | 209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.) 200 g |
Battery | 9-volt alkaline battery ~ 2,000 hours at normal background |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying case with belt clip
Warranty
1 year limited warranty
X-Ray
Ranger
The Ranger is a small, handheld, microprocessor-based instrument which offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, external calibration controls and adjustable alert.
Maximum performance in a lightweight, rugged solution for surveying at the facility or in the field. Designed for industrial environments, but has all the features you’ve come to love in the lab.
Internal memory and the free Observer USB Software allow you to download your data, set computer alarms, and calibrate your instrument!
Detector | Internal, thin-window, uncompensated GM tube with thin mica window. Effective diameter of window is 45 mm (1.77 in.) |
Radiation Detected | Alpha and beta with some gamma response |
Energy Sensitivity | Alpha: > 2 MeV Beta: >160 keV Gamma: > 10 keV |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 100 CPM: 0 – 350,000 µSv/h: 0.01 – 1000 CPS: 0 – 5000 |
Physical Specs | 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.) 291 g (0.64 lbs.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Optional Accessories
Wipe Test Plate, Swipes, Water Resistance Case
Warranty
1 year limited warranty
Ranger EXP
The Ranger EXP offers everything that the Ranger does but with an external pancake detector for better access in hard-to-reach spaces. The Ranger EXP offers excellent sensitivity to low levels of alpha, beta, gamma, and x-rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, external calibration controls and adjustable alert.
Maximum performance in a lightweight, rugged solution for surveying at the facility or in the field. Designed for industrial environments, but has all the features you’ve come to love in the lab.
Internal memory and the free Observer USB Software allow you to download your data, set computer alarms, and calibrate your instrument!
Detector | Internal, thin-window, uncompensated GM tube with thin mica window. Effective diameter of window is 45 mm (1.77 in.) |
Radiation Detected | Alpha and beta with some gamma response |
Energy Sensitivity | Alpha: > 2 MeV Beta: >160 keV Gamma: > 10 keV |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 100 CPM: 0 – 350,000 µSv/h: 0.01 – 1000 CPS: 0 – 5000 |
Physical Specs | Meter Body: 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.), 291 g (0.64 lbs.) External Pancake: 260 X 25 mm (10.25 X 1 in.) Dia : 70 mm (2.75 in.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Optional Accessories
Wipe Test Plate, Swipes, Water Resistance Case
Warranty
1 year limited warranty
Monitor 200
The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, μSv/hr, mR/hr, or in accumulated counts. It has a digital display, a red count light, and a beeper that sounds with each count detected. Other features include an adjustable timer, and selectable alert. With the free Observer USB Software Family, you can set computer alarms, calibrate your instrument, and download your collected data from the internal memory for easy reporting!
Detector | Halogen-quenched GM tube with thin mica end window. Effective window diameter is 0.36″ (91 mm), side wall is 0.012″ (3 mm) thick. |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: >50 keV (typical 35% detection efficiency) Gamma: > 10 keV through tube window |
Measurement Modes | Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) |
Count Range | mR/h: 0.001 – 200 CPM: 0 – 235,400 µSv/h: 0.01 – 2,000 CPS: 0 -3,923 |
Physical Specs | 140 x 68 x 33 mm (5.5 x 2.7 x 1.3 in.) 181 g (0.4 lbs.) |
Battery | USB Power or Two (2) AA alkaline batteries Battery life ~ 800 hours at background reading |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case, Xtreme Boot, Lanyard, Stand, Batteries, Mini-USB Cable, Observer USB Software, Observer BLE Software, Certificate of Conformance
Warranty
1 year limited warranty
Monitor 4
Simple and ergonomic, the Monitor 4 is compact, analog radiation detector. A general purpose survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. Proven and reliable over decades of use in the industry, the Monitor 4 has evolved into one of the best analog radiation detectors of today.
Detector | Halogen-quenched GM tube with thin mica end window. Effective window diameter is 0.36″ (9.1 mm), side wall is 0.012″ (3 mm) thick. |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: 150 keV (75% efficiency) > 50 keV (35% efficiency), Gamma: > 10 keV through tube window |
Measurement Modes | Analog Display: Counts per minute (cpm), Counts per second (cps), microsieverts per hour (µSv/h), milliroentgen (mR/h) Range Switch: x1, x10, x100, battery check |
Operating Range | mR/h: 0.001 – 200 CPM: 0 – 235,400 µSv/h: 0.01 – 2,000 CPS: 0 -3,923 |
Physical Specs | 209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.) 200 g |
Battery | 9-volt alkaline battery ~ 2,000 hours at normal background |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying Case
Warranty
1 year limited warranty
Monitor 4EC
The Monitor 4EC is an energy compensated, ergonomic radiation survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a linear response for gamma and x-rays (above 40 keV).
Detector | Halogen-quenched GM tube, energy compensated sidewall 2 mm thin filter. Thin mica window 1.5-2.0 mg/cm2 thick. Effective window diameter is 0.36″ (9.1 mm). |
Radiation Detected | Alpha, beta, gamma, and x-ray |
Energy Sensitivity | Alpha: > 2.5 MeV (typical detection efficiency at 3.6 MeV is greater than 80%) Beta: 150 keV (75% efficiency) > 50 keV (35% efficiency), Gamma: > 10 keV through tube window |
Measurement Modes | Analog Display: Counts per minute (cpm), microsieverts per hour (µSv/h), milliroentgen (mR/h) Range Switch: x1, x10, x100, battery check |
Operating Range | mR/h: 0 – 50 CPM: 0 – 50,0000 µSv/h: 0 – 500 |
Physical Specs | 209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.) 200 g |
Battery | 9-volt alkaline battery ~ 2,000 hours at normal background |
Temperature & Humidity | -10° to +50°C (14° to 122°F) 10% to 70% Non-Condensing |
Includes
Carrying case with belt clip
Warranty
1 year limited warranty
