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Hidden Gem System Sensor 4wtar-b Smoke Detector And Thermal Sensor Secure Checkout [Dm2UGih5]

$24.99 $79.99 -69%

System Sensor 4WTAR-B Photoelectric i3 Series Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder, Form C Relay, WhiteSystem Sensor i3 sounder and relay smoke detectors apply the guiding principles of installation ease, intelligence, and instant

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Hidden Gem System Sensor 4wtar-b Smoke Detector And Thermal Sensor Secure Checkout [Dm2UGih5]

System Sensor 4WTAR-B Photoelectric i3 Series Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder, Form C Relay, White

System Sensor i3 sounder and relay smoke detectors apply the guiding principles of installation ease, intelligence, and instant inspection in a series of specialty conventional devices.

To reduce the likelihood of nuisance alarms, all i3 detectors are equipped with both drift compensation and smoothing algorithms.

These capabilities minimize both short- and long-term causes of nuisance alarms, such as RF interference and dust accumulation. When connected to the 2W-MOD2 loop test/ maintenance module or an i3 Ready™ panel, 2-wire i3 detectors can generate a remote maintenance signal when in a maintenance or freeze trouble condition.

To measure the sensitivity of any i3 detector, the SENS-RDR displays the reading, in terms of percent-per-foot obscuration, within seconds.

i3 has red and green LEDs to simplify local status indication during power-up, standby, alarm, maintenance, and freeze trouble conditions. When in alarm, i3 sounder models generate an 85 dB temporal tone.

If connected to the RRS-MOD reversing relay/synchronization module, all i3 sounders on the loop will activate when one detector is in alarm. The RRS-MOD also synchronizes i3 sounder output to ensure a clear audible signal

What Our Customers Say

January 27, 2026

Absolutely no complaints!

An excellent product that I can truly endorse.

- Catalina K..

January 27, 2026

Absolutely no complaints!

A great item. And I recommend it.

- Bobbie A..

January 27, 2026

Absolutely no complaints!

This is a very solid, extremely well-made item.

- Paul Z..

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