Lathem Sonachron Alternatives
  Lathem Sonachron System Replacement Lathem Sonachron Replacement KIT
Our Price: $499.00
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Modern programmable bell system to replace Lathem Sonachron timers.
  Timer and wall clock Pyramid 7000 Master Clock with 4" Synchronized Dig
Our Price: $549.00
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High-visibility 4" digital wall clock powered by the Pyramid 7000 master clock—facility-wide synchronized time with simple setup and expansion.
  110V Pyramid 7000 Pyramid 7000 with 110V output
Our Price: $449.50
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Replaces Lathem Sonachron. Additional feature: Variable duration rings, use for "two minute warnings" of end of break, end of lunch. 110V output. Ships wired & tested. EASIEST SETUP ON THE MARKET.
  Pyramid 7000 Work Shift Timer
Our Price: $559.00
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Pyramid 7000 timer, Pyramid 7000 master clock, Lathem Sonachron replacement, 110V bell ringer timer, programmable shift bell controller, 300 event bell timer, synchronized clock system USA
  Bells In A Box Bells In A Box, Low Voltage
Our Price: $589.50
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Two 24VDC bells, internal power supply, Pyramid 7000 timer, wire, and mounting hardware - everything you need. Add digital (or analog) wall clocks now or later.
  Pyramid Buzzers in a Box Buzzers In A Box
Our Price: $629.00
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Everything you need is in this starter kit! Two loud 110VAC 4" 102dB buzzers,Pyramid 7000 timer and mounting hardware. Add synchronized clocks now or later. EASIEST SETUP ON THE MARKET.
  Pyramid Time Pyramid Clock & Bell Package
Our Price: $598.00
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One Pyramid timer, one 6" 95db bell, one 4" Bright Red LED display clock, cables and connectors. Simple to set ring events, easy to install. (Mostly) made in USA.
  Universal Remote Network work shift timer with NTP synch Network Work Shift Timer
Our Price: $649.00
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Factory or School timer. Rings bells up to 1000 times in a 7 day window. Preset up to 500 schedules. Extremely flexible settings. Ethernet connection, locking metal box.
  Web synchronized buzzer system Synchronzed Buzzers In A Box
Our Price: $899.00
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Two loud 4" 110VAC buzzers, network controller, wall mounted junction box, and mounting hardware. Schedule up to 500 events per day!
  Network Bell Bells In A Box Network
Our Price: $749.00
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Two loud 6" 110VAC bells, network controller, locking box, and mounting hardware. Schedule up to 500 events per day!
  Netbell KL Netbell-KL
Our Price: $910.00
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The Netbell KL is a loud 102dB bell, with a loud 24V bell. Ethernet connection, NTSP time synch. 500 programmable schedule memory.
  Network Bell Netbell-KB Web-Based Vibratone Horn
Our Price: $948.00
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NetBell-KB Web-Based Federal Signal Vibratone horn. Self-contained break buzzer system that covers up to 25,000 SQF in industrial working areas In stock, fast shipping. UPC 01-910-00022

The Lathem Sonachron Alternatives category provides replacement systems and compatible alternatives to the discontinued Lathem Sonachron automatic bell ringing system. The Sonachron line historically offered time-based signaling for shift changes, class periods, and scheduled alerts, but Lathem no longer produces this series, creating demand for modern replacements that support the same functions.

Products in this category include programmable work shift timers, master clock-controlled bell systems, synchronized clock and bell packages, network-ready controllers, and compatible accessories from other manufacturers such as Pyramid and Netbell. These alternatives provide robust timing capabilities, allowing facilities to automate audible signals with flexible scheduling and reliable performance.

Many replacement systems support multiple signals, up to hundreds of scheduled events per week, and can be configured for both low-voltage bells and high-output buzzers. Network-capable controllers allow integration with time servers or Ethernet infrastructure, bringing modern connectivity to facilities that previously relied on legacy Sonachron hardware.

Selecting a suitable alternative involves considering the size of the space to be signaled, the number of devices to coordinate, and any existing timing infrastructure. The systems in this category help organizations maintain coordinated audible alerts without major rewiring, preserve schedule discipline, and support dependable operational workflows in schools, manufacturing environments, and large facilities.