Thumbs 1
Thumbs 1
Thumbs 1
Thumbs 1


Part# 11-13004
MFR Model# E-04C.1


GPS capable ELT accepts Garmin aviation, Bendix/King aviation, NMEA 0183 and Arinc 429 data. Retains GPS coordinates after power is removed. Remote fits Artex and Kannad panel cut-outs. ELT certified to the new TSO-C126B standard battery certified to TSO-C142A lithium batteries UN/DOT 8.3 lithium batteries.

Warranty: All warranty issues must be handled directly with the manufacturer. These are non-returnable and non-refundable once installed. If any attempts have been made to install this unit it becomes a warranty issue and can only be resolved with the manufacturer directly. Please view the warranty tab for additional information on the manufacturer's warranty.

There is a $250 Recertification fee in addition to the 15% restock fee on all ACK products that have been opened.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • FAA / Transport Canada
  • TSO -C126b TSO-C91a TSO-C142a
  • EASA
  • ETSO 2C126 ETSO 2C91a TSO-C142a
  • Industry Canada
  • 1863A-E04AF
  • Brazil ANAC/ANTEL
  • TSO-C126 TSO-C142a
Type: TSO-C126b TSOC-91a AF

Frequency: 121.5 MHz & 406.037 MH

  • 406 MHz +/-2 kHz Bi-Phase L (16KOG1D)
  • 121.5 MHz +- 6 kHz AM (3K20A3N)
  • Swept Downward 1400 400 Hz
  • Repetition Rate 3 Hz
  • Modulation Factor ≥ 90%
  • Duty Cycle ≥ 45%
Power At Terminal 50 Ω Load:
  • 121.5 MHz 20.7 dBm 50 Hours@ -20C
  • 406.037 MHz 37.3 dBm 24.5 Hours @ -20C
Peak EIRP with E-04.8 Whip Antenna AND E-04.10.4 Coax Cable:
  • 121.5 MHz +22 dBm 160 mW
  • 406.037 MHz +39.79 dBm 13.7 W
Peak EIRP With S65-1231 BLADE Antenna and E-04.10.4 Coax Cable:
  • 121.5 MHz +23 dBm 200 mW
  • 406.037 MHz +39.79 dBm 13.7 W
Operating Temperature:
  • -20C TO +55C
  • Storage Temperature: -55C TO +85C
Crash Activation: 4.5 FpS +- .5 FpS

  • 7.750 x 2.850 x 2.850
  • 192 mm x 72 mm x 72 mm
  • ELT and battery pack 1.6 lbs .73kg
  • ELT tray and straps .2 lbs .09kg
  • Remote Control (RCPI) 12.5oz 31g
  • Audio Alert Indicator 1.5 oz 43g
  • Whip Antenna Part Number E-04.8
  • Length 20.625 524 mm Swept 20
  • Weight 2.1 oz 60g
  • Impedance 50 OHM Nominal
  • VSWR @ 121.5 MHz ≤ 3.0:1
  • VSWR @ 406 MHz ≤ 1.4:1
  • Maximum Recommended Airspeed 260 Knots@ Sea Level
  • Blade Antenna Part Number S65-1231-1
  • Height 7.5 190 mm SWEPT 20
  • Weight 23 oz 652g
  • Impedance 50 OHM Nominal
  • VSWR @ 121.5 MHz ≤ 2.0:1
  • VSWR @ 406 MHz ≤ 1.5:1
  • Maximum Recommended Airspeed Mach 1 @ Sea Level


  • Avionics products manufactured by ACK Technologies, Inc. are warrantied against defects in materials and workmanship for a period of three years from their manufacture date. This warranty is limited exclusively to repair or replacement of the E-04 ELT and associated parts which were manufactured by ACK Technologies, Inc. the defective parts must be returned freight prepaid to our manufacturing facility. This warranty does not include repair or replacement of any part that has been improperly used, installed or physically damaged. This warranty does not cover any damage caused by chemical exposure. Discharge of the ELT lithium battery is not covered by this or any other warranty. Except as provided herein ACK Technologies, Inc. makes no express warranties, and any implemented warranty of merchantability of fitness for a particular purpose is limited in its duration to the duration of the written limited warranties set forth herein. ACK Technologies, Inc. shall not be liable for any direct, indirect, special or consequential damages arising from the use or misuse of this product. Except as provided herein no employee, agent, dealer, or other person is authorized to give any warranties of any nature on behalf of ACK Technologies, Inc. YOU MAY HAVE ADDITIONAL LEGAL RIGHTS WHICH VARY FROM STATE TO STATE

In The Box

  • 1 - E-04C 121.5/406 MHz ELT
  • 1 - E-04.5.1 Remote with vertical placard
  • 1 - E- Remote horizontal placard
  • 1 - E-04.10.4 Coax cable 60
  • 1 - E- Warning horn
  • 1 - E-04.4 Mounting Tray
  • 1 - E-04.4.1 Retaining strap front
  • 1 - E-04.4.2 Retaining strap battery case
  • 1 - E- 2 Pin plug kit
  • 1 - E- 8 Pin circular plug kit
  • 1 - E- 15 Pin plug kit
  • 1 - E-04.11.1 Switch cover
  • 1 - E-04CM Installation/Operation/Manual
  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed



Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How is the commercial ACK E-04 unit different from basic unit? Does it still use the telephone cable?

This unit is made for commercial aircraft and does not use the telephone cable for the remote switch.

View in Catalog

View Image View in Catalog