| Specifications | 450000 | 450050 | 450060 |
| Certifications | CE Mark | CE Mark | CE Mark |
| Model | 399 | ECM 399 | |
| Pulse Waveform | Exponential Decay | Exponential Decay | Exponential Decay |
| DC Voltage Range LV Mode | 2 to 500 V / 2 V resolution | 2 to 500 V / 2 V resolution | 2 to 500 V / 2 V resolution |
| DC Voltage Range HV Mode | 10 to 2500 V / 10 V resolution | 10 to 2500 V / 10 V resolution | 10 to 2500 V / 10 V resolution |
| Arc Control | Arc Quenching™ | Arc Quenching™ | Arc Quenching™ |
| Safety | Generator is short circuit proof | Generator is short circuit proof | Generator is short circuit proof |
| Capacitance LV Mode | 1050 µF | 1050 µF | 1050 µF |
| Capacitance HV Mode | 36 µF | 36 µF | 36 µF |
| Internal Resistance LV Mode | 150 ? | 150 ? | 150 ? |
| Internal Resistance HV Mode | 151 ? | 151 ? | 151 ? |
| Opererational Status | Internal self test upon start-up | Internal self test upon start-up | Internal self test upon start-up |
| Interface | Digital User Interface | Digital User Interface | Digital User Interface |
| Power | 100 to 240 VAC, 50/60 Hz | 100 to 240 VAC, 50/60 Hz | 100 to 240 VAC, 50/60 Hz |
| Charge Time | 25 sec maximum (without delay) | 25 sec maximum (without delay) | 25 sec maximum (without delay) |
| Display | 1 line x 16 character LCD | 1 line x 16 character LCD | 1 line x 16 character LCD |
| Controls | Single rotary knob with push button toggle to set parameters. On/Off Power and Start switches | Single rotary knob with push button toggle to set parameters. On/Off Power and Start switches | Single rotary knob with push button toggle to set parameters. On/Off Power and Start switches |
| Electroporation Chamber | PEP | PEP | PEP |
| Monitoring | Monitoring and display of Voltage | Monitoring and display of Voltage | Monitoring and display of Voltage |
| MOS Multi-Well Compatible | No | No | No |
| Remote Operation | No | No | No |
| Warranty | 2 Years | 2 Years | 2 Years |
| Height Metric | 10.9 cm | 10.9 cm | 10.9 cm |
| Height English | 4.3 in | 4.3 in | 4.3 in |
| Width Metric | 23.1 cm | 23.1 cm | 23.1 cm |
| Width English | 9.1 in | 9.1 in | 9.1 in |
| Depth Metric | 19.6 cm | 19.6 cm | 19.6 cm |
| Depth English | 7.7 in | 7.7 in | 7.7 in |
| Weight Metric | 3.2 kg | 3.2 kg | 3.2 kg |
| Weight English | 7 lbs | 7 lbs | 7 lbs |