Lathem Sonachron Replacement KIT
Pyramid timer, cable and 110V bell

Replacement system for Lathem DWA-S with 10' bell wire and loud 110V fire bell. Optional upgrades include momentary ring button, more bells and synchronized clocks. EASIEST SETUP ON THE MARKET.

Our Price: $449.00
Lathem Sonachron System Replacement

Accessories & Supplies:

DetailsIDProduct NameDescriptionPriceAdd To Cart
Click 115 Surge ProtectorPower damages are not covered w/o surge protection$14.95
Click 407 25' Insulated bell wire25' Insulated bell wire$19.95
Click 404 50' Insulated bell wire50' Insulated bell wire$29.50
Click 405 100' Insulated bell wire100' Insulated bell wire$34.50
Click 408 Momentary Contact Button"Instant Ring!" Button$35.00
Click 88 6" 110V AC Bell 96-102dB6" 110V AC bell$99.00
Click 78 Amber Strobe Light 110VacHigh Voltage Amber Strobe Light$74.99
Click 232 Pyramid 13" Analog Child Wall ClockPyramid 13" Dial Face Child Clock 110VAC$199.00
Click 95 Pyramid Digital Shop ClockDigital Shop Clock for Pyramid 7000$189.00


Pyramid 7000 scheduled workshift timer
Includes custom-made 110v-10amp protected power output

It will be black, and slightly different inside when it is delivered to you

Master clock and bell system overview:

Single Bell Circuit, run as many bells or buzzers as needed
---  Also works with Tone Generators and PA Systems
Set up to 72 events, each event (signal) can run on multiple days
--- It will easily accomodate a 3 shift operation

No need to reset, it keeps the time when the power is off
--- and restores to the correct time when it comes back on
Automatically adjusts for daylight savings - you can turn this off.

This is an old picture, now they are black.  We've been selling (and installing) these machines since 1997.

Pyramid 7000 scheduled workshift timer program example

Imagine everyone going back to work on-time at the end of breaks, end of lunch. 

We made this example, many people print it out and make their own, using this as inspiration.
Notice that there is a three minute warning for the end of lunch.  A five minute warning for the end of the day. 
This works.  Give it some thought.

Print this out, write up your own.  Make a short one second ring for the warnings.
Pyramid 7000 and our network bell systems do this.  The Lathem Sonachron does not.

110VAC upgraded Pyramid 7000 scheduled timer can control:

1) Up to twelve Pyramid child clocks, more with a power booster
2) Up to eight 110VAC Bells, more with a power booster
3) Up to six 110V Loud Buzzers, more with a power booster


  • Pyramid 7000 masterclock terminal and easy-to-understand owners manual
  • Power supply
  • Internal 110V - 10Amp mechanical relay.  Pre-wired and tested
  • 10 Amp rated 110V grounded power cord
  • Toll-Free Telephone Support
  • One year product replacement guarantee
  • 10' bell wire cable - add more as needed!
  • Loud RED fire bell, add more as needed


Momentary Contact (ring) button.
Synchronized digital wall clock
Strobe light that flashes when the bell rings


  • 6" high, 5.5" wide, 2" deep
  • Requires two plugs (a duplex outlet)
  • Initial output is 24VDC, modified to 110VAC with 10Amp DPDT Mechanical Relay


  • Add bright, easy-to-read digital synchronized wall clocks throughout your facility
  • The 7000 can control Pyramid digital and Pyramid analog (clock face) clocks
  • We have over 200 of these systems installed (as of August, 2016)
  • We are not copying web content to our website, we know this equipment inside and out

    We have actual installation and on-site problem solving experience
    In this business, we are unique, with hands-on experience, and that is why you should call us.