Ludlum 43-20 Gas Proportional DetectorThe Model 43 20 is very similar to the Model 43 68 which replaced it. You get these at a slight discount. A large area gas proportional detector for use in simultaneous alpha beta surveys as well as alpha or beta survey Add a Counts. Pro for $499 to turn your meter into a digital scaler ratemeter cloud connected datalogger! Take your meter to the next level with Counts. Pro INDICATED USE: Alpha beta survey RECOMMENDED COUNTING GAS: P 10 (10% methane,

Cylindrical GM detector with no "handle"

Yet another "Bullet Proof" hand held meter made by Ludlum

Indicated Use Alpha

) Weight 0

000 and up

com/us/app/counts-pro/id1281397288

The dosimeter number matches the hole code and barcode for the exterior carrier

For example

x1000 reads out the internal GM detector

The APP is free in the Apple store

lightweight

heating stability