Hochiki NS4-221
Hochiki NS4-221
In stock!
The Hochiki NS4-221 is an electronics-free conventional detector base with a built-in resistor for circuit supervision and a plastic tamper-lock lug to hold the detector head securely. It is available in bone (off-white) or white to match the finish of the Hochiki smoke or heat detector it carries, and for installations that need more than a plain base, the related HSC-(X)R models in the same family add relay contacts, latching outputs, or a 4-wire 24 V configuration.
Key Features
- Electronics-free base with a plastic tamper-lock lug
- Built-in resistor for correct circuit supervision
- Available in bone or white to match the mounted detector
- Related HSC-(X)R models in the same base family add relay contacts, latching outputs, or a 4-wire 24 V version (HSC-4R)

