Signal Test has used this Willtek 4405 GSM mobile phone tester for demostration purposes. The product was purchased back in March of 2005, directly from Willtek.  Signal Test is an authorized distrubor of Willtek (Cell phone testers, RF shield boxes, antenna couplers, etc).  You can eventually add (factory installed) the CDMA2000 and WCDMA options, for an additional cost. This reconditioned wireless communications test set will be calibrated at the time of purchase. 

The options included with this 4405 are:

1.  Willtek. 4460 GSM option for the 440X  (GSM-900/1800/1900/850).
2. 4462 GPRS system option for 440x.
3. 4468 EDGE system option for 440X.
4. 4475 ACPM option for 440X.  The adjacent channel power meter (ACPM) option adds the spectrum measurement capabilities to the 4400 series.
5. WILLTEK. 1100 Test SIM for Mobile Phones (2000 cycles guaranteed).
6. WILLTEK. 4478 TCP/IP Option.  including ethernet PC card for 440X.
7. 4480 RAPID GSM Service test software for 4400-GSM.
8. Willtek.  4481 AM Signal Generator Option for 440X.
9. Willtek. 4470 Audio option for the 440X.
10. Willtek. 4471 Codec Basic Option.
11. Willtek. 4472 Codec Extension Option. (Enhanced full rate).
12. Willtek. 4473 MS Power supply option for the 440X.
13. Willtek. 4474 Current measurement option upgrade.