| Model | 
GE2502 | 
GE1512 |
GE1511RA | 
CT2678 | 
CT2451 | 
CT2445RA |
CT2445 |
| Description | Passive Probe, 35MHz, 1:1 | Passive Probe, 135MHz, 10:1 | Passive Probe, 150MHz, 10:1, Readout | Passive Probe, 15MHz, 1:1 | Passive Probe, 35MHz, 1:1 | Passive Probe, 135MHz, 10:1, Readout | Passive Probe, 135MHz, 10:1 |
| Bandwidth | 21 MHz | 135 MHz | 150 MHz | 15 MHz | 35 MHz | 135 MHz | 135 MHz |
| Risetime | 17 ns | 2.6 ns | 2.3 ns | 27 ns | 10 ns | 2.6 ns | 2.6 ns |
| Switchable | | | | No | No | No | No |
| Attenuation | 1:1 | 10:1 | 10:1 | 1:1 | x1 | x10 | x10 |
| Input Impedance | 1 MOhm | 10 MOhm | 10 MOhm | 1 Mohms | 1 Mohms | 10 Mohms | 10 Mohms |
| Input Capacitance (pF) | ˜65 pF | ˜14 pF | ˜12 pF | | | | |
| Compensation Range (pF) | - | 10 to 30 | 10 to 30 | | | 10 to 30 | 10 to 30 |
| Interface | | | | BNC | BNC | BNC | BNC |
| Readout Actuator | No | No | Yes | No | No | Yes | No |
| Ground Reference | | | | No | No | No | No |
| Cable Length inches (meters) | 2.0 m | 1.2 m | 1.2 m | 48 (1.2) | 80 (2) | 80 (2) | 80 (2) |
| IEC 61010 Rating | 300V CAT II | 300V CAT II | 300V CAT II | 300V CAT II | 300V CAT II | 300V CAT II | 300V CAT II |
| Manufacturer's Warranty | | | | 1-year | 1-year | 1-year | 1-year |
| CE Approved | | | | No | Yes | Yes | Yes |
| Notes | | | | Modular Construction | | | |