




Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The System Sensor MDL3R Sync-Circuit Module, designed by Honeywell International, offers advanced synchronization of notification appliances, ensuring reliable operation in safety systems. Optimally crafted for SpectrAlert series devices, this module controls synchronization over a two-wire setup. It effectively synchronizes strobes at one Hz and temporal 3 for horns and chimes, while allowing silence over the same circuits without affecting strobe operations.
Utilizing patented technology, the MDL3R manages multiple circuits, coordinating up to two 3-amp circuits as Class B or one 3-amp circuit as Class A. For broader applications, it supports the interconnection of modules, expanding its functionality.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!


