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AJAX 42801.79.BL3 Double Button Wireless Hold-up Transmitter, Black

SKU: 4280179BL3 MPN: 42801.79.BL3 AJAX

Special Order: typically 2–6 weeks

Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.

Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.

A member of our team will check with the manufacturer and personally reply by email.

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Key Features

  • Instant, reliable panic signaling to reduce response time and protect staff or customers
  • Dual-button logic prevents accidental triggers while ensuring deliberate emergency activation
  • Secure two-way Jeweller radio communication with up to 1300 m range for resilient alarm delivery
  • Rugged IP55 housing and tamper detection provide dependable performance in varied installation locations
  • Confirms successful alarm delivery with a visible green LED, simplifying monitoring and maintenance
  • Compatible with all AJAX hubs and range extenders (OS Malevich 2.10+), enabling seamless integration into existing systems

Quick Specifications

Product Model
42801.79.BL3
Brand Name
AJAX
Country of Origin
UA
Manufacturer Part Number
42801.79.BL3
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Product information

42801.79.BL3

Overview

Designed for fast, reliable emergency response, the AJAX 42801.79.BL3 Double Button Wireless Hold-up Transmitter puts immediate protection at your team’s fingertips. This AJAX panic button is ideal for retail, offices, and service points where discreet yet unmistakable alarm signaling is required. The two-button hold-up design minimizes false alarms while allowing deliberate activation during threats. Using the secure two-way Jeweller radio protocol, the transmitter supports communication ranges up to 1300 m and includes cypher-backed transmission to prevent spoofing—critical for professional security and alarm monitoring. Built to integrate easily, it works with all AJAX hubs and range extenders running OS Malevich 2.10 or newer and reports alarm delivery with a green LED confirmation. The IP55-rated enclosure and tamper detection give installers confidence in durability and reliability across varied environments. Use it to trigger sirens, lock doors, shutter access, or notify your monitoring service instantly. Add the AJAX Double Button hold-up transmitter to your security or surveillance system to strengthen incident response and simplify monitoring—contact your supplier to order or integrate it into your alarm system today.

Features

  • Instant, reliable panic signaling to reduce response time and protect staff or customers
  • Dual-button logic prevents accidental triggers while ensuring deliberate emergency activation
  • Secure two-way Jeweller radio communication with up to 1300 m range for resilient alarm delivery
  • Rugged IP55 housing and tamper detection provide dependable performance in varied installation locations
  • Confirms successful alarm delivery with a visible green LED, simplifying monitoring and maintenance
  • Compatible with all AJAX hubs and range extenders (OS Malevich 2.10+), enabling seamless integration into existing systems
4 of 4 specifications
Technical specifications for AJAX 42801.79.BL3 Double Button Wireless Hold-up Transmitter, Black
General Information
Brand Name AJAX
Country of Origin UA
Manufacturer Part Number 42801.79.BL3
Physical Characteristics
Color Black, Green

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SKU:
4280179BL3
Manufacturer part:
42801.79.BL3
How do I confirm compatibility?

Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.

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When will this item ship?

Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.

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What should I know about returns?

Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.

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AJAX 42801.79.BL3 Double Button Wireless Hold-up Transmitter, Black

42801.79.BL3

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