The strength field is required to be filled in so I like the temp gauge.

Unclear how to switch back to Miles from Km with out taking out the battery. It must be possible since I accidentally switched it the other way with out removing battery. Button feel is kind of iffy.

Really "Zippy the Pinhead"? The manual notes that it turns itself off after 5-6 minutes. Have you actually been taking out the battery each time. You probably won't be back to this site to read this but come on. You even reference the manual.

The price was $9.77 plus tax

No off switch. Must be reconfigured every time you use it. Battery is #2032 coin battery, which can't be recharged and are costly.

Was $30 originally, bought it for $9.77, got what I paid for. My heart goes out to those who paid $30 for it, but I can now understand why it was on clearance.

Installation is not that terrible, in hindsight, but took some fine-tuning to get it functioning. Sensors must be within 4mm of magnets to register.

Since there is no off switch, you turn it off by removing the battery cover (and battery). Thus at minimum it must be reconfigured with respect to language, units (Metric or English) and wheel size code *every time* it is used.

One LBS owner told me they stopped stocking these because they had so many problems.

BTW mine is the predecessor of the model that this review is assigned to (mine is a model SI-2), but on the Serfas Web site, the user manual for the model HWC-3 is literally the manual for the SI-2. It appears they didn't even create a new manual for the HWC-3!

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