Choosing between these two PLC HMIs starts with a simple reality check: one is a complete HMI unit, and the other is a repair kit. In industrial automation, the operator panel is the part of the machine that gets used constantly, so when it fails you need to know whether the entire HMI is gone or just the controls. The Crouzet MTP8/70 HMI 88970496 / 88970495 User Kit is listed as new open-box and comes from Taiwan, while the Siemens KTP700 Membrane Keypad + Touchpad 6AV2123-2GB03-0AX0 HMI Repair Kit is a used item from China. With a price spread of about $1,791, you need to know whether your system requires a full operator interface or just replacement of worn parts.
Quick Verdict
Pick the Crouzet MTP8/70 HMI if you need a complete operator interface for a Crouzet Millenium 3 controller and the higher price fits. Pick the Siemens KTP700 repair kit if you already own a KTP700 HMI and want a low-cost way to restore it. The Crouzet is a full solution; the Siemens is a targeted fix. Your decision here is more about project scope than about which manufacturer makes a better panel.
At a Glance
| Product | Listed Price | Condition | What It Is | Best For |
|---|---|---|---|---|
| Crouzet MTP8/70 HMI 88970496 / 88970495 User Kit | USD 1,971.92 | New - Open box | Complete HMI unit for a Millenium 3 system | Full HMI replacement |
| Siemens KTP700 Membrane Keypad + Touchpad 6AV2123-2GB03-0AX0 HMI Repair Kit | USD 181.39 | Used | Replacement keypad and touchpad for KTP700 | Low-cost keypad and touchpad refresh |
Where Each Product Wins
Crouzet MTP8/70 HMI: The choice when you need a complete operator interface rather than a spare component. This is the product that actually goes on the machine as the new face of the control system.
Siemens KTP700 repair kit: The choice when you have a KTP700 and want to replace worn controls at a lower cost. This keeps an existing panel alive instead of replacing it.
Product Notes
Crouzet MTP8/70 HMI 88970496 / 88970495 User Kit
The Crouzet MTP8/70 HMI is the product to reach for when your control station is missing its face. This is a single-unit user kit, not a collection of spare parts. The part numbers 88970496 and 88970495 on the listing refer to the complete HMI, and the Crouzet controller platform is the environment it's meant for. At $1,971.92, it sits at the higher end of the price spread, which is the biggest hurdle. You're paying for a full touch panel operator interface, so if all you need is a fresh keypad on an existing screen, this is more than the job requires. But for a machine that has no functional HMI, it's the direct answer.
Siemens KTP700 Membrane Keypad + Touchpad 6AV2123-2GB03-0AX0 HMI Repair Kit
The Siemens KTP700 repair kit makes sense when the rest of your HMI is fine and only the controls are failing. At $181.39, it gives you the keypad and touchpad replacements, which are the parts that take the most abuse. The limitation is that it cannot operate as a standalone HMI: without an existing KTP700 HMI, it has no panel to repair. This is a maintenance purchase, not a system purchase. If your KTP700's membrane keypad or touchpad is worn, this kit provides the replacements you need to extend the panel's life. For a plant floor that keeps a few spare parts on hand, this kind of kit can be a smart inventory item.
Final Choice by Use Case
The decision triangle is simple. If your system is missing a functional HMI and you're working with a Crouzet controller, the Crouzet MTP8/70 HMI is the option that gets you running, even though the price is steep. If your HMI is a Siemens KTP700 and only the controls are failing, the repair kit offers a targeted fix instead of a whole new unit. Buy the full HMI when you need a full interface; buy the repair kit when you just want to restore what's there.
