Trade-in and Trade‑up
If you own an older-generation Probewell product, you are automatically eligible for our trade-in program, meant to ensure that our customers get all the benefits of our latest innovation.
Do you own an older-generation Probewell product?
“Change before you have to.”
—Jack Welch
Probewell continuously develops advanced technologies in parallel with the utility industry’s ever-changing requirements, because we believe it is mutually beneficial to establish a dynamic and durable relationship with our business partners.
Make the leap to the next-generation, while enjoying the same precision and ease of use, and a whole lot more…
Trade in your older generation Probewell tester and get an up to $1,000 discount on the purchase of any of our latest models.
Contact our sales and customer service for more details on the technical improvements between generations.

The purchase of a MT-1/WT3 or MT-1/NT9

The purchase of a MT-1/WT1, MT-1/NT5 or MT-1/NT4
Why migrate toward WiFi technology?
It’s time to make the leap and adopt our next-generation WT series wireless models: MT-1/WT3 and MT-1/WT1. Enjoy the same and accuracy and ease of use, plus so much more…





Overview of Technical Product Improvements Between Generations
|
MT‑1/NT old generation (1994-2011)
|
NT new generation (2009-now)
|
WT series WiFi (2018-now)
|
|---|---|---|---|
| Precision | Typical ± 0.025% Guaranteed ± 0.075% |
Typical ± 0.02% Guaranteed ± 0.05% |
Typical ± 0.02% Guaranteed ± 0.05% |
| Protection | Fuses | Circuit breakers | Circuit breakers |
| Form base features |
Keyed removable tabs (hex key needed) |
Removable twist tabs, turns-&-lock system (Toolless configuration) |
Removable twist tabs, turns-&-lock system (Toolless configuration) |
| Controller |
8-keys tactile remote or
Handheld control keypad (depending on model) |
Handheld control keypad |
Built-in WiFi
Compatible with :
|
| Compatibility | Only single-phase forms, for some models only self-contained single-phase forms | See online table (click here!) | See online table (click here!) |
| Voltage range capacity | 120-240 VAC ± 10% | 100-480 VAC ± 10% | 100-480 VAC ± 10% |
| Reverse flow test capability | NO | YES | YES |
| Testing in Wh | YES | YES | YES |
| Testing in VARh | NO |
YES: MT‑1/NT3 & MT‑1/NT9 NO: other models |
YES |
| Line monitor with THD analysis | NO | YES | YES |
| Expected product life cycle | N/A | 10 years | 10 years |
| Warranty | N/A | 2-year | 2-year |
Unlimited 1-to-1 discount ratio: One trade-in rebate per new unit purchased, upgrade your entire Probewell tester inventory.
Any model can be exchanged for the discount.
Applicable only in Canada and the US.