Pass & Seymour CI305 Wattstopp...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$259.51
Pass & Seymour CI305 Wattstopper Low-Profile Ceiling PIR Occupancy Sensor, 360°, 1200 sq. ft.

Pass & Seymour CI305 Wattstopper Low-Profile Ceiling PIR Occupancy Sensor, 360°, 1200 sq. ft.

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Model: PAS-CI-305

In Stock (leaves warehouse same day if ordered before 3pm ET)

$259.51
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Pass & Seymour CI305 Wattstopper Low-Profile Ceiling PIR Occupancy Sensor, 360°, 1200 sq. ft.

The Pass & Seymour CI305 is a Wattstopper passive infrared (PIR) ceiling-mount occupancy sensor built for automatic lighting control in commercial spaces. Its low-profile design detects motion across a full 360° field of view, covering up to 1,200 sq. ft. per sensor, and operates at 24 VDC. Combined with a BZ-150 Power Pack, the CI305 supports both automatic-on and manual-on operation, helping facilities cut energy waste while keeping lighting control unobtrusive and architecturally clean.

Key Features

  • 360° Coverage: Full-range passive infrared detection monitors up to 1,200 sq. ft. from a single ceiling-mounted sensor.
  • Low-Voltage Operation: Runs on 24 VDC for compatibility with standard occupancy sensor power packs and control wiring.
  • Automatic or Manual-On Operation: When paired with a BZ-150 Power Pack, the CI305 supports both automatic-on and manual-on switching modes.
  • Low-Voltage Switch Input: Accepts a low-voltage switch input, enabling manual-on control where required.
  • Walk-Through Mode: Increases energy savings potential by allowing lights to shut off quickly after brief occupancy.
  • Plug Terminal Wiring: Simplifies and speeds up installation with quick-connect plug terminals.
  • Low-Profile Design: Architecturally appealing, low-profile ceiling appearance blends into finished spaces.

Technical Specifications

  • Country Of Origin: China
  • Product Length: 4.5 in
  • Product Line: Pass & Seymour
  • Product Width: 4.5 in
  • Product Depth: 1.02 in

Typical Applications

  • Commercial Office and Conference Room Lighting Control
  • Open-Plan and Common-Area Lighting Automation
  • Retrofit Energy-Savings Upgrades
  • New Construction Lighting Control Systems
  • Facilities Seeking Automatic or Manual-On Sensor Control

Why Pass & Seymour?

Pass & Seymour's Wattstopper CI305 combines reliable 360° passive infrared detection with a low-profile, architecturally appealing housing suited to professional commercial installations. Plug terminal wiring and compatibility with the BZ-150 Power Pack make the CI305 a straightforward, dependable choice for automatic lighting control and energy management.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Occupancy Sensor
Voltage Rating:
24VDC
Configuration:
360° Ceiling Mount
Series:
Wattstopper
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lighting Controls & Sensors
Product Depth:
1.02 in
Product Length:
4.5 in
Product Width:
4.5 in

Pass & Seymour PAS-CI-305 – Frequently Asked Questions

1) Can the Pass & Seymour CI305 ceiling sensor switch lights on its own, or does it need a power pack?
The CI305 is a low-voltage sensor only. It runs on 24 VDC and carries no line-voltage relay, so it has to be paired with a BZ-150 Power Pack to actually switch the load. The power pack supplies the 24 VDC and does the switching. Order the pack with the sensor or the lights won't come on.
2) How much floor area will one CI305 ceiling occupancy sensor cover?
Up to 1,200 sq. ft. with a full 360 degree passive infrared field of view from a single ceiling mount point. For a standard private office or conference room that is one sensor. Large open-plan areas take multiple sensors wired back to the power pack.
3) Will the CI305 work for a manual-on (vacancy) application where code requires occupants to turn lights on?
Yes. The CI305 accepts a low-voltage switch input, and with the BZ-150 Power Pack it supports both automatic-on and manual-on operation. For manual-on you wire a low-voltage momentary switch to the sensor input and the sensor handles the automatic off.
4) What is the closest low-voltage alternative to the Pass & Seymour CI305 ceiling occupancy sensor?
The Lithonia Lighting CM-9 is the nearest match in operating class. The CI305 is a PIR ceiling-mount occupancy sensor rated 24VDC, so it runs off a low-voltage control circuit and needs a power pack such as the BZ-150 to switch the load. The CM-9 is also a PIR low voltage occupancy sensor switch, rated 12-24V AC/DC in white, so it fits the same kind of low-voltage control architecture. Both are sensor heads rather than self-switching line-voltage devices.
5) I do not want to run a separate power pack. What can I use instead of the CI305?
Choose a device that switches the load itself. The CI305 operates at 24VDC and relies on a power pack like the BZ-150 to handle the lighting circuit. If you want the relay in the sensor, the Lithonia Lighting CMR-9 is a PIR occupancy sensor with a relay built in. On the line-voltage side, the Leviton ODS10-ID is a PIR commercial grade occupancy sensor rated 120/277V AC, and the Leviton ODC0S-I1W is a PIR commercial grade line voltage occupancy sensor. Any of those removes the separate power pack from the bill of materials.
6) The CI305 covers 1200 sq ft. What covers a larger open area?
The CI305 is a 360 degree ceiling PIR sensor covering up to 1,200 sq. ft. per sensor. For a bigger footprint from one device, the Leviton ODS10-ID-E is a PIR commercial grade occupancy sensor listed at 2100 sq. ft. in 120/277V, black. Note the difference in control scheme: the CI305 is a 24VDC low-voltage head that switches through a power pack, while the ODS10-ID-E is a line-voltage device, so the wiring approach changes along with the coverage area.
7) How big is the CI305 sensor housing and how far does it drop below the ceiling?
The housing measures 4.5 in long by 4.5 in wide with a depth of 1.02 in, so it sits nearly flush and reads as a low-profile disc on a finished ceiling. That matters in architectural spaces where a bulky dome sensor gets rejected.
8) Is a PIR ceiling sensor like the CI305 the right choice, or should I use a wall switch sensor?
Ceiling mount is the choice when you need 360 degree coverage of an open room or when furniture, partitions, or a door swing would block a wall box sensor's view. The CI305 covers up to 1,200 sq. ft. from one point overhead. A wall switch sensor replaces the existing switch and needs no low-voltage wiring or power pack, which is simpler for a small single-door office. If you want line voltage in a switch box instead of a low-voltage ceiling run, look at the Leviton ODS10-ID PIR commercial grade sensor at 120/277V AC.
9) Can I use multiple CI305 sensors on one lighting circuit for a larger room?
Yes. Because the CI305 is a 24 VDC low-voltage sensor rather than a self-switching line-voltage device, several sensors can feed the same power pack and control run, which is how you cover an open-plan area or an L-shaped room past the 1,200 sq. ft. per-sensor coverage. Occupancy anywhere in the covered area holds the lights on.
10) Is the Leviton ODS15-IDW a drop-in replacement for the Pass & Seymour CI305?
No. The ODS15-IDW is a PIR self-adaptive commercial grade occupancy sensor, and its self-adaptive timing logic and device format differ from the CI305, which is a 360 degree ceiling-mount PIR head operating at 24VDC and switching the load through a BZ-150 power pack. If your ceiling already has low-voltage control wiring and a power pack in place, the CI305 or another low-voltage head such as the Lithonia CM-9 keeps that architecture intact; the ODS15-IDW would mean rethinking the control wiring.
11) For standardizing occupancy sensors across a commercial facility, how do the Leviton options compare with the CI305?
The Leviton ODC0S-I1W, ODS10-ID, ODS10-ID-E and ODS15-IDW are all identified as commercial grade PIR occupancy sensors, which gives a consistent family to specify across a building. The Pass & Seymour CI305 is the Wattstopper low-profile 360 degree ceiling PIR head at 24VDC, intended for commercial office, conference room and open-plan lighting control with a power pack handling the switching. In practice many facilities use both: low-voltage ceiling heads like the CI305 over open areas, and self-contained line-voltage units in smaller rooms.
12) What is the difference between the Lithonia CM-9 and CMR-9 when cross-shopping against the CI305?
The CM-9 is a PIR low voltage occupancy sensor switch rated 12-24V AC/DC in white, so like the CI305 it works as a low-voltage head within a powered control circuit. The CMR-9 is a PIR occupancy sensor with a relay, meaning the switching contact is in the sensor itself. The CI305 sits with the CM-9 in approach: it runs at 24VDC and uses a BZ-150 power pack for automatic-on or manual-on switching, and adds a low-voltage switch input and plug terminal wiring.
13) Do I have to hard-wire the CI305 with wire nuts, or is there a quick connection?
Plug terminals. The CI305 uses quick-connect plug terminal wiring to the low-voltage control run, which cuts install time on a ceiling where you are working overhead. No line-voltage terminations at the sensor itself, since the switching happens at the power pack.
14) My tenants complain lights stay on in short-use spaces. Does the CI305 have a walk-through setting?
It does. Walk-through mode lets the lights shut off quickly after brief occupancy, so someone stepping into a copy room or storage closet for ten seconds does not leave the lights burning for a full time-out cycle. That is where most of the extra savings come from in low-traffic rooms.
How fast can I get the Pass & Seymour PAS-CI-305 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour PAS-CI-305 come with a warranty?
Absolutely. The Pass & Seymour PAS-CI-305 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour PAS-CI-305?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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