Yes, but either way, the Xindi were a lot more technologically developed compared to Earth (and similarly more developed than Vulcans and Andorians in several areas) and its likely that NX-01's sensors from seasons 1 and 2 (prior to the S3 refit) wouldn't be able to capture some of the detail Degra spoke about.
Also, in the very first season of ENT, NX-01's sensors weren't good enough to detect residual engine emissions from Suliban ships... however, T'Pol was able to make modifications to the sensors which allowed them to do so in the field.
During its first 2 seasons, NX-01 was sending telemetry to Starfleet which allowed them to improve upon NX-01's systems in general (sensors included) when they refit the ship in S3 just before going into the Expanse - heck, they had a room dedicated to analyzing Xindi and Sphere builders technology. I find it unlikely the NX-01's sensors wouldn't have been upgraded along with other systems as part of a major retrofit just before S3.
Some modifications the crew was able to do in the field, others (more extensive ones) would have to likely be done in drydock.
Another major refit the ship saw was in S4... well, mostly repairs and all the upgrades the NX-02 was getting as well (or at least, most of them - they didn't have those big power transfer tubes on the bridge the NX-01 from E2 had or the NX-02 got - but its possible those were last minute upgrades that were crammed into NX-02 just before it launched... otherwise, the NX-01 would have gotten those in the next refit cycle).