• Home
  • Ludlum Model 2241 Digital Scaler/Ratemeter

$1,615.00 $807.50

2 in stock

SKU: 9518122311 Product Type: Vendor:

This instrument is a general purpose, digital ratemeter with a built-in scaler that facilitates timed counts over a user specified period. The LCD presents readings in a 4-digit moving decimal format together with one of a wide range of available units of measure and is accompanied by several operational and alert icons. The LCD backlight can be activated and remains lit for a user-adjustable interval. This instrument features adjustable Alert & Alarm setpoints for both the Ratemeter & Scaler modes. Front panel controls include a rotary switch for selecting between Off, Ratemeter Mode and Scaler Mode, switches for audio on/off and fast/slow response time, plus push buttons for activating the LCD backlight and one for either resetting the counts or acknowledging any alarms.

Add a Counts.Pro for $499 to digitize your surveys and turn your meter into a digital scaler/ratemeter/cloud connected GPS datalogger!  Take your meter to the next level with Counts.Pro

  • Digital Ratemeter with Built-In Scaler
  • Auto ranging
  • Adjustable Alarms
  • Wide range HV
  • Over range & Overload Protection
INDICATED USE: general purpose survey, gross counting
SUGGESTED DETECTORS: GM, proportional, scintillation
ALERT/ALARM: indicated by annunciation on display and audible tone
DISPLAY: 4-digit LCD display with 1.3 cm (0.5 in.) high digits, separate annunciators for display units, alert, alarm, low battery, detector overload, counting overflow, and scaler counting
BACKLIGHT: pushbutton to activate
RATEMETER: can display in R/hr, Sv/h, cpm, or cps when selector switch is in RATE position
DISPLAY RANGE: auto ranging from 0.0 μR/hr to 9999 R/hr; 0.000 μSv/h to 9999 Sv/h; 0 cpm to 999 kcpm; or 0 cps to 100 kcps
SCALER: adjustable from 1 to 9999 seconds (in 1-second intervals)
LINEARITY: within 10 %
HIGH VOLTAGE: 400 to 2400 volts
DISCRIMINATOR: adjustable from 2 to 100 mV
BATTERY LIFE: typically 200 hours with alkaline batteries (low battery warning on LCD)
SIZE: 16.5 x 8.9 x 21.6 cm (6.5 x 3.5 x 8.5 in.) (H x W x L)
WEIGHT: 1.6 kg (3.5 lb), including batteries

Additional information

Weight 7 lbs