Ludlum

The Model 2401-P instrument is a general purpose, pocket-size radiation detection meter designed around the venerable GM pancake detector. The detector is conveniently packaged inside the instrument with a protective screen window. This instrument is available with a variety of meter faces for measuring contamination and exposure rate in either R or Sv units.

The cable-less Model 26 consolidates the electronics and the detector into one ergonomic housing. This optimized configuration incorporates a standard GM pancake probe, loud audio “click” output, and large auto-ranging LCD display with automatic back lighting into one convenient package, making it easier than ever to detect contamination.

Operation is kept extremely simple through the use of just two buttons. A useful feature employed in the design is the MAX mode, which captures the highest or peak count rate. It is particularly convenient whenever the display is not directly visible. The scaler mode, with a preset count time, allows the user to take a discrete measurement. This system also incorporates low power circuitry, delivering hundreds of hours of use with just two standard “AA” size batteries. The calibrator can protect parameters (cps/cpm, response time, alarm points, & scaler time) or allow the user to adjust them.

The Model 3 is Ludlum’s best selling, general purpose, handheld, analog ratemeter known for accuracy and long-lasting dependability. It comes in a variety of measurement ranges and units to support the external radiation detector selected.

The GM pancake-type detector in the Model 44-9 is one of the most popular radiation detectors used throughout the world. This alpha, beta, and gamma radiation detector has a rugged metal housing and is conveniently shaped and sized for checking contamination on people and objects.

The Ludlum Model 3000 is a durable, lightweight instrument that is used with an external detector for alpha, beta, and gamma radiation survey. It features a large, easy-to-read LCD screen and audible alarms and is controlled using a simple five-button interface. The unit body is made of high-impact plastic, and splash-resistant construction allows the instrument to be used outdoors.

The GM pancake-type detector in the Model 44-9 is one of the most popular radiation detectors used throughout the world. This alpha, beta, and gamma radiation detector has a rugged metal housing and is conveniently shaped and sized for checking contamination on people and objects.

The Model 2401-EC instrument is a pocket-size radiation detection meter with an integrated energy-compensated GM tube for measuring gamma exposure. The meter measures 0 to 200 mR/hr exposure rate and also 0 to 210,000 cpm via separate scales. The metal case offers excellent protection against abuse. The overall size and integrated design facilitate ease of use.

The cable-less Model 26-1 consolidates the electronics and the detector into one ergonomic housing. This optimized configuration incorporates a standard GM pancake probe, loud audio “click” output, and large auto-ranging LCD display with automatic back lighting into one convenient package, making it easier than ever to detect contamination.

Three modes of operation are available — RATE, MAX, and COUNT — which can be selected by pressing the MODE button. RATE mode displays the current count, exposure, or activity rate. MAX mode captures the highest count, exposure, or activity rate detected; this is useful for finding a peak rate or for frisking when the display is not visible. COUNT mode allows the operator to perform a survey for a preset amount of time; depending on the chosen units, the count result can be a scaler count, a time-averaged rate, a time-averaged exposure or dose rate, or an integrated exposure or dose. Measurements can be displayed in units of cps, cpm, dpm, Bq, mR/h, or μSv/h. The user can switch between two sets of chosen units (primary and secondary) for RATE and MAX modes by pressing the UNITS button.

The Model 3 is Ludlum’s best selling, general purpose, handheld, analog ratemeter known for accuracy and long-lasting dependability. It comes in a variety of measurement ranges and units to support the external radiation detector selected.

The 44-38 is a stainless steel energy compensated GM detector. With a flattened energy response, this probe is perfect for use alongside Radiation Devices & Sealed Sources.

The Ludlum Model 3000 is a durable, lightweight instrument that is used with an external detector for alpha, beta, and gamma radiation survey. It features a large, easy-to-read LCD screen and audible alarms and is controlled using a simple five-button interface. The unit body is made of high-impact plastic, and splash-resistant construction allows the instrument to be used outdoors.

The 44-38 is a stainless steel energy compensated GM detector. With a flattened energy response, this probe is perfect for use alongside Radiation Devices & Sealed Sources.

The Ludlum 3-97 NORM meter is excellent for measuring NORM in all kinds of processing facilities. This instrument is highly sensitive to alpha, beta and gamma radiation. ALARA Model 3-97 NORM meters are modified with colour coding and labelling for the easiest possible operator usage. The analog meter dial allows for a more natural response.

Online Ludlum 3-97 NORM Meter Training

The Model 3001-2RK is composed of two dependable, high-quality detectors matched with the versatile Model 3001 survey meter. The kit includes the Model 44-9 alpha-beta-gamma detector for surface contamination measurements and the Model 44-2 high-sensitivity gamma detector for measuring gamma dose rates.

The cable-less Model 26 consolidates the electronics and the detector into one ergonomic housing. This optimized configuration incorporates a standard GM pancake probe, loud audio “click” output, and large auto-ranging LCD display with automatic back lighting into one convenient package, making it easier than ever to detect contamination.

Operation is kept extremely simple through the use of just two buttons. A useful feature employed in the design is the MAX mode, which captures the highest or peak count rate. It is particularly convenient whenever the display is not directly visible. The scaler mode, with a preset count time, allows the user to take a discrete measurement. This system also incorporates low power circuitry, delivering hundreds of hours of use with just two standard “AA” size batteries. The calibrator can protect parameters (cps/cpm, response time, alarm points, & scaler time) or allow the user to adjust them,

This gamma/neutron survey meter combines Ludlum Model 2363 survey meter with the Model 42-41L PRESCILA neutron detector. The gamma detector is an energy compensated GM housed internally to the survey meter. The neutron detector is a proton recoil type, which provides excellent measurement results at less weight than the more traditional REM balls. The neutron measurement has excellent gamma rejection up to 100 mR/hr.

The Model 12-4 is an industry standard neutron dose rate instrument that conforms to the RPG curve with a measuring range of 0 to 100 mSv/h (0 to 10,000 mrem/hr) from thermal to 12 MeV.

The Model 9DP is a digital, hand-held pressurized ion chamber that provides highly sensitive exposure measurements of gamma and x-ray radiation at energies above 25 keV and beta radiation at energies above 1 MeV. Measurements and instrument status are displayed on a large, 232K-color, backlit LCD screen. The screen displays the current exposure rate as well as simultaneously displaying either the integrated exposure rate or the peak exposure rate in Sv, R, Gy, or rem units.

NOTE: This instrument requires TDG Class 2.2 training to ship.
Please see the instrument manual for details.

The Ludlum 9-3 ion chamber is a rugged air ionization chamber for performing beta-gamma dose rate measurements over a five-decade span ranging from background to 500 mSv/h (50 R/hr). The chamber wall (including the instrument case) is 1000 mg/cm². A 1000 mg/cm² retractable beta shield allows beta measurement with a 7 mg/cm² window. The six-position switch selects Off, x10k, x1k, x100, x10 and x1. Each range has a front-panel mounted calibration control. Other features include an audio output, reset, and zero adjust capabilities. Means are also provided to zero the electrometer leakage current.

The Model 25 and Model 25-1 Personal Radiation Monitors are small, rugged devices designed to warn emergency response personnel of any dangerous fields that they may encounter. These easy-to-use instruments incorporate a GM detector capable of measuring radiation fields up to 9.99 Sv/h (999 R/hr).

The Model 25-IS and Model 25-IS-1 are intrinsically safe versions of the Model 25 Series Personal Radiation Monitors. They are small, rugged devices designed to warn emergency response personnel of any dangerous radiation fields that they may encounter, and are certified for use in areas where explosion safety is a concern. These easy-to-use instruments incorporate a GM detector capable of measuring radiation fields up to 9.99 Sv/h (999 R/hr).

The Ludlum Model 23-1 mSv Electronic Personal Dosimeter is a compact and lightweight (60 g / 2 oz) pen-type personal dosimeter. It is ideal for the measurement and general monitoring of gamma and X-ray radiation in medical and laboratory environments, as well as any controlled or restricted area where personal radiation monitoring is required or desired. The unit is sensitive to a wide range of energies from 35 keV to 3 MeV. Dose, Dose Equivalent Rate, and alarm values are easily seen on the four-digit LCD screen. An audible alarm is activated if the dose or dose rate exceeds the preset value of the dosimeter. The alarm set points are adjustable from the face of the unit.