Police ankle bracelet?
| BI Inc | |
| ExacuTrack One | |
| PN: | EX-600 |
| FCC ID: | TS5-6055M - ET300 |
| M52114091500222 | |
| 1153895 | |
| 0566A4BA | |
| Made in Canada | |
| Reward Call (888)809-5999 | |
| EX-600V P | |
| ET1 1153895 | |
| BFA 10037 | |
| BI P/N: | 1-10-92028-0 |
| S/N | SB111308094C411 |
| Made in Japan | |
| Assembled in China | |
| 18650 Battery | |
| 3.6 Volt Li-ion, 2150mA | |
| Voltage between battery pins | ||
|---|---|---|
| 1st pin | 2nd pin | Voltage |
| 1 | 2 | .00 |
| 1 | 3 | .00 |
| 1 | 4 | -3.53 |
| 2 | 3 | .00 |
| 2 | 3 | -.62 |
| 3 | 4 | -3.00 |
| Battery pin numbers | ||
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I'm not sure, but I kind of think the battery also has a radio transmitter in it.
Also see this.