Ludlum Model 19 Micro R Meter - Radiation Meter - 2023 Calibration
Web Information
Features
- High Sensitivity to Gamma
- Range: 0 to 5000 μR/hr
- Rugged
- Splashproof Protection for Outdoor Use
- 2000 Hour Battery life
- Meter Light
The Model 19 is a highly sensitive gamma microR meter employing an internally housed, 2.5 x 2.5 cm (1.0 x 1.0 in.) NaI detector. The measuring range is 0 to 5000 µR/hr. (For µSv/h, use Model 19 Series 8, P/N: 48-2582.) The cast aluminum instrument housing with a separate battery compartment and accompanying metal handle offer an industrial robustness and quality that promote long lasting protection and instrument life.
The front-panel controls include a rotary switch for selecting the five-decade range and instrument shut-off, an audio on/off switch, a fast/slow response switch, and pushbuttons for activating the meter lamp, high-voltage display, battery test, and count reset. The Model 19 is a complete turn-key system and includes two "D" cell batteries.
Note: While the detector used in this instrument is sensitive and is often used for detection of near-background levels of radiation, its nonlinear energy response means that dose and exposure measurements may be over/underreported.
Application | Low-level (microR) gamma survey |
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Detector (D x L) | NaI(Tl) scintillator, 2.5 x 2.5 cm (1 x 1 in.) |
Detection Range | 0 to 5000 μR/hr (for µSv/h, see note below) |
Sensitivity (137Cs gamma) | Approximately 175 cpm per μR/hr |
Energy Response | Energy dependent |
Linearity | Reading ± 10% of true value |
Meter Dial | 0 - 25 µR/hr, 0 - 50 µR/hr, BAT TEST, High Voltage Test |
Meter | 6.4 cm (2.5 in.) arc, 1 mA analog type |
Controls |
|
Working Environment | Splashproof shields for outdoor use |
Temperature Range | -20 to 50 °C (-4 to 122 °F) May be certified for operation from -40 to 65 °C (-40 to 150 °F) |
Power | 2 each “D” cell batteries (housed in sealed compartment that is externally accessible) |
Battery Life | Typically 2000 hours with alkaline batteries (battery condition can be checked on meter) |
Construction | Cast and drawn aluminum with beige powder coat finish |
Size (H x W x L) | 15.2 x 8.9 x 21.6 cm (6.0 x 3.5 x 8.5 in.) without handle |
Weight | 2.04 kg (4.5 lb), including batteries |
Condition
The item is tested and is in excellent working condition. It was calibrated in 2023.
Watch a video of this unit in operation below:

ExpressLabWerks.com LUDLUM MODEL 19 Micro R Meter - gamma radiation survey meter
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Includes
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Ludlum Model 19 Micro R Meter
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(2) good D Cell batteries
BBR3
Warranty
30 Day warranty. We pledge to offer the best service and warranty to all of our customers! We are extending a 30 Day warranty on this item. This is our way of saying thank you for allowing us to serve you.
Certification
This is a genuine product from this manufacturer.