Radiation Monitoring

Technical Services Group offers a variety of radiation measuring and monitoring instruments produced by several quality manufacturers. Shown here below are a few of the various models we offer. If you don't see what you are looking for, call our sales department for more information.

If your are uncertain as to which model is best for your application, we will be glad to assist you with your selection. We also provide survey meter rental and calibration.

Geiger-Muller Survey Meters

NDS Products model ND-500A

Low energy 4-range radiographic survey meter. Gamma and X-Ray detection up to 500 mR/h, energy compensated, uses 2 "D" cell batteries. Rugged construction, waterproof. Audio option available. Energy response: from 60keV to 1.5MeV Ranges: 0-0.5 mR/h, 0-5 mR/h, 0-50 mR/h, 0-500 mR/h. Specifications here.

NDS Products ND-2000

Gamma and X-Ray detection up to 1000 mR/h, energy compensated, uses 2 "D" cell batteries. Rugged construction, waterproof. Energy response: from 80 to 1500 keV Ranges: 0-10 mR/h, 0-100 mR/h, 0-1000 mR/h. Specifications here.

NDS Products ND-2000C

Gamma and X-Ray detection up to 1000 mR/h, energy compensated, uses 2 "D" cell batteries. Rugged construction, waterproof, with built-in dosimeter charger. Energy response: from 80 to 1500 keV Ranges: 0-10 mR/h, 0-100 mR/h, 0-1000 mR/h.

NDS Products ND-2200

Low energy Gamma and X-Ray detection up to 1000 mR/h, energy compensated, uses 2 "D" cell batteries. Rugged construction, waterproof, with slow-fast response switch. Energy response: from 50 to 1500 keV Ranges: 0-10 mR/h, 0-100 mR/h, 0-1000 mR/h. Specifications here.

NDS Products ND-2500 (4 Range Survey Meter)

Low energy Gamma and X-Ray detection up to 1000 mR/h, energy compensated, uses 2 "D" cell batteries. Rugged construction, waterproof. Energy response: from 50 to 2000 keV Ranges: 0-1 mR/h, 0-10 mR/h, 0-100 mR/h, 0-1000 mR/h.

Victoreen Model 190I (NDT Digital Survey Meter)

Gamma and X-Ray detection up to 1000 mR/h. Analog/digital display, rate/integrate modes, response switch, built-in audio with on/off, uses 1 to 4 9-volt batteries. Ranges: 0.01 mR/h to 1000 mR/h.

Bicron RO-20 (Replaces Bicron RO-50)

With five linear ranges of operation the portable air ionization instrument detects beta, gamma and x-radiation. The unique ionization chamber is vented to atmospheric pressure and is specifically designed to have a flat energy response into the x-ray region. Ranges: 0-5, 0-50, 0-500 mR/hr; 0-5, 0-50 R/h.

For Medical and Scientific Applications

Victoreen 451P

Beta, Gamma and X-Ray detection to 5 R/h, Pressurized ion chamber, Analog/digital display, Dose and dose rate functions. Energy response: Beta above 1 MeV, Gamma & x-ray above 25 keV Ranges:0-500 uR/h, 0-5 mR/h, 0-50 mR/h, 0-500 mR/h, 0-5 R/h. Specifications here. (PDF, 500kb)

ND-138 Ion Chamber Pocket Dosimeter

Gamma and X-Ray detection of accumulated dose to 200mR. Fiber electrometer mounted in hermetically sealed ion chamber.(requires charger sold separately) Energy response: Gamma & X-Ray from 16keV to 6MeV.

Personnel and Area Monitors

ND-100 Dosimeter Charger

Durable, compact, battery powered unit is combatable with all fiber ion chamber pocket dosimeters. Uses 2 "C" cell non-alkaline batteries.

ND-15 Dual-Range Personal Monitor

Rugged belt worn exposure warning monitor detects Gamma and X-Ray, emits "chirp" warning which varies in frequency as radiation exposure intensifies. Detector is a halogen quenched energy compensated GM tube. Low range: 60 chirps per minute in a 1mR/hr field, high range: 60 chirps per min in a 30mR/hr field. Energy response: 60 to 1500 KeV

RA-500 Personal Monitoring Rate Alarm

Rugged belt worn exposure warning monitor detects Gamma and X-Ray, emits 100DB loud solid tone warning in a 500mR/hr field.. Detector is a halogen quenched energy compensated GM tube. Meets NRC 10-CFR-34.33 requirement for personal monitoring. Energy response: 60 to 1500 KeV

ND-4000B Area Radiation Monitor

Economical area monitor detects Gamma and X-Ray, standard alarm trip point at 2mR/hr (other trip points available), will activate any 120V AC (up to 5 amps) warning device such as warning lights, alarm, or door interlocks. Energy response: 60 to 1500 KeV

Aloka PDM-127

Gamma and X-Ray accumulated dose detection up to 10mSv. Digital display electronic pocket dosimeter requires no charger,separate reader or developing. Energy Response: Gamma & x-ray above 20 keV. Range: 1μSv to 1Sv.

Aloka PDM-122 Pocket Dosimeter

Gamma and X-Ray accumulated dose indication up to 10Sv. Digital display electronic pocket dosimeter requires no charger, separate reader or developing. Energy response: Gamma & x-ray above 40 keV. Range: 1μSv to 10Sv.

K8 Nuke Safeguard Miniature Alarming Ratemeter

The K8 is a small discrete alarming ratemeter capable of detecting even very small amounts of radiation and radioactive materials. The green LED indicates the presence of radiation. A red LED and audible alarm indicate high-level radiation. The red LED and audible alarm threshold is preset to 5 mrem/hr but can also be custom set per special request. Does not record or display cumulative dose.

Call us at (770) 822-9117 for more information.