| MODEL |
TEST VOLTAGE |
RESISTANCE RANGE |
POWER SOURCE |
| BIRT-1000C |
100-1000V
well regulated |
1-106 M  |
battery and ac line |
BIRT-5000B
(Bulletin 7-2) |
400-5000V
well regulated |
1-106 M |
battery and ac line |
| BIRT-5000C |
400-5000V
well regulated |
100-108 M |
battery and ac line |
| BIRT-7500B |
500-7500V
well regulated |
1-106 M |
battery and ac line |
| BIRT-10000B |
800-10000V
well regulated |
1-106 M |
battery and ac line |
| IR-250 |
250V nominal
regulated |
0-250 M |
ac line |
| IR-550 |
500V nominal
regulated |
0-500 M |
ac line |
| IR-500-100K |
500V nominal
regulated |
1-100,000M |
ac line |
| IR-1000 |
1000V nominal
regulated |
0-1000 M |
ac line |
|
