Neutron Meters

Ludlum Measurements

Ludlum Model 30-4 Neutron survey meter, He3

30-4 Meter

Ludlum Model 30-7 Neutron survey meter, He3

30-7 Meter

Ludlum Model analog 2363 Gamma-Neutron survey meter

2363 γ/n Meter

Ludlum Model 375-31H Neutron Area Monitor

375-31H

Ludlum Model digital 2241-4 Neutron survey meter, He3

2241-4 Meter