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As a professional manufacturer in occupancy sensors for sustainable building control solutions, we strive to develop innovative products that not only allow you to provide occupancy sensing based building control, but also offer versatile selections for OEM lighting fixture integration. We strive to deliver maximum energy savings through simple and effective sensor controls.
The best controls are the ones you don't even realize are there at all.
MRA‑5xx Series
DALI-2 Occupancy & Light Sensor
The MRA type of the TRANS‑PIR sensor family is a DALI-2 certified occupancy and light sensor for Digital Addressable Lighting Interface (DALI) control. This sensor complies with IEC 62386 Parts 101, 103, 303 and 304 DALI standards.
All TRANS‑PIR sensors are available with various mounting options and interchangeable lenses.

| Models | Tech | ALS | Power | Output | Wiring | Control |
| MRA‑514S a b | PIR | ● | DALI bus power | DALI-2 | Terminal Block | Addressable/slave DALI |
| a - mount code b - lens code | ||||||
| LEGENDS: PIR - Passive infrared |
| Mounting Options | Code | Bracket # | |
| Fixture Integrated | F | -- | ![]() |
| IP‑66 Fixture Integrated | W | -- | ![]() |
| Fixture External | E | EMB‑500 | ![]() |
| IP‑66 Fixture External | P | PMB‑500 | ![]() |
| Ceiling Surface | S | SMB‑500 | ![]() |
| Junction Box | C | CMB‑500 | ![]() |
| Ceiling Recess | L | LMB‑500 | ![]() |
| Lens Options | Code | Coverage | |
| Standard Cone |
A | ![]() |
![]() |
| Extra Wide Cone |
B | ![]() |
![]() |
| High Bay Cone |
C | ![]() |
![]() |
| Standard Flat Round |
D | ![]() |
![]() |
| Extra Wide Dome |
F | ![]() |
![]() |
| Aisle Way Arch (Not for IP-66) |
G | ![]() |
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| High Bay Dome |
H | ![]() |
![]() |
| Long Aisle Arch (Not for IP-66) |
L | ![]() |
![]() |
| Models | Tech | ALS | Power | Output | Wiring | Control |
| MRA‑514S a b | PIR | ● | DALI bus power | DALI-2 | Terminal Block | Addressable/slave DALI |
| a - mount code b - lens code | ||||||
| LEGENDS: PIR - Passive infrared |
| Mounting Options | Code | Bracket # | |
| Fixture Integrated | F | -- | ![]() |
| IP‑66 Fixture Integrated | W | -- | ![]() |
| Fixture External | E | EMB‑500 | ![]() |
| IP‑66 Fixture External | P | PMB‑500 | ![]() |
| Ceiling Surface | S | SMB‑500 | ![]() |
| Junction Box | C | CMB‑500 | ![]() |
| Ceiling Recess | L | LMB‑500 | ![]() |
| Lens Options | Code | Coverage | |
| Standard Cone |
A | ![]() |
![]() |
| Extra Wide Cone |
B | ![]() |
![]() |
| High Bay Cone |
C | ![]() |
![]() |
| Standard Flat Round |
D | ![]() |
![]() |
| Extra Wide Dome |
F | ![]() |
![]() |
| Aisle Way Arch (Not for IP-66) |
G | ![]() |
![]() |
| High Bay Dome |
H | ![]() |
![]() |
| Long Aisle Arch (Not for IP-66) |
L | ![]() |
![]() |
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