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Otto Engineering E1-EA2MM131

Otto Engineering > Audio surveillance kits

One Wire Commercial Monitoring Kit, with In-Line PTT and Microphone, Standard Acoustic Tube

Works with HYTERA, MOTOROLA and RELM / BK radios that use multi-pin connector (See a list of compatible models)

Customer Rating:

Item SKU Number: 440140

Original Manufacturer: Multi-Manufacturer Compatibility

Manufacturer Part Number: E1EA2MM131, E1 EA2MM131, E1-EA2MM131

FCA point / Shipped from: USA

Manufacturer Warranty: 2 years

Download Free Materials:

Otto_1-wire_monitor_kit_brochure.pdf (365.52 KB)

Otto_1_and_2_wire_monitoring_kits_installation.pdf (421.17 KB)

Otto_Surveillance_kits_and_accessories.pdf (1407.51 KB)

Item Details:

OTTO Commercial One Wire Surveillance Kit

The One Wire Monitoring Kit - is lightweight, durable, and performs in situations from routine to demanding. The quick disconnect acoustic tube makes the unit ideal for sharing across multiple shifts, and users can rely on high clarity, two-way radio transmissions that go unnoticed by others.

Recommended Markets:

Retail, security, casinos, crowd control at conventions and concert.

Additional Information:

Connector type:

Small Multi-Pin Assembled Connector
(Otto MM, Pryme x43)

Compatible with HYT / HYTERA radios:

PT-790
TC-3000
TC-3600
TC-610P
TC-700P

TC-780
TC-780M
TC-780MPT
TC-880GM

Compatible with MOTOROLA radios:

EX500
EX560XLS
EX600
EX600XLS
GL2000
GL2500R
GP328 Plus
GP329 Plus
GP338 Plus
GP338 XLS
GP339 Plus
GP344
GP344R
GP366R
GP388
GP388R

GP628 Plus
GP629 Plus
GP638 Plus
GP638 XLS
GP639 Plus
GP644
GP688
GP688R
Handie Talkie III
PRO5150 Elite
PRO7150 Elite
PRO9150 Elite
PTX700 Plus
PTX760 Plus
PTX800 Plus
PTX860 Plus

Compatible with RELM / Bendix King radios:

RPU3000A
RPU3600
RPU3600A PLUS
RPV3000A

RPV3600
RPV3600A PLUS
RPU7500
RPV7500

x43-MM@Connector

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Manufacturer's Catalogs and Guides:

These files contain information about the available products from the manufacturer. If you need something that is not on our website, please contact us. We will help you purchase the desired product at a low price.

OTTO Comm Full Color Catalog

Published Date: 2021

Otto Engineering Full Product Catalogue 2021

Two-Way Radio Communication Accessories Book

Published Date: October 2021

Table of Products by Brands

Published Date: May 2023

OTTO Communications specializes in accessories for the two-way radio market including surveillance kits, wireless accessories, lightweight and heavy-duty headsets, speaker microphones, tactical, fire & HAZMAT communications equipment.

OTTO accessories are designed for use by public safety, security, surveillance, emergency medical teams, SWAT, fire fighters, HAZMAT and other law enforcement professionals along with food service, hospitality, entertainment, construction and industrial markets. OTTO Communications supports a wide range of radio platforms providing accessories for most major two-way radios.

Made in U.S.A. - Premium Quality.