Space Age Duct Detector Remote Test Station SSU-MS-KA/R, Key Operated, Single Gang
Test the duct, from the wall.
A key-operated, single-gang remote test station for Space Age duct smoke detectors. It lets facility teams test a duct detector from a wall plate instead of the ductwork.

Duct detectors are hard to reach.
Smoke detectors in HVAC supply and return ducts protect commercial buildings, but the detectors themselves sit in the ductwork. A remote test station puts the test point in a convenient place.
Built for duct detector testing
The SSU-MS-KA/R pairs a keyswitch with an alarm LED in a compact single-gang format.
Key-operated keyswitch
A keyswitch design for smoke detector applications, operated with a key.

Height
Width is 2.8", in a 1-gang format.
Single-gang format
A 1-gang station that measures 4.5" high by 2.8" wide.
Red alarm LED
A red alarm LED is set in a stainless steel gang plate.
Space Age duct detectors
Listed as compatible with Space Age Electronics duct smoke detectors in the RW, SM and SL series.
Everything you need to know.
| Brand | Space Age |
| Model | SSU-MS-KA/R |
| Model Type | Remote Test Station |
| Product Type | Keyswitch |
| Gang | 1-Gang |
| Series | MS |
| Application | Smoke Detector |
| Gang Plate | Stainless Steel |
| Alarm LED | Red |
| Height | 4.5" |
| Width | 2.8" |
| Shipping Weight | 0.35 lb |
Space Age Duct Detector Remote Test Station SSU-MS-KA/R, Key Operated, Single Gang
The Space Age SSU-MS-KA/R Duct Detector Remote Test Station (Key Operated, Single Gang) is a remote test station for professional installation. It is made for installers, integrators and facility teams who need a dependable replacement or new-build part that matches the original part number.
Key Features
- 1-Gang
- Product color; red, stainless steel
- Product series MS
Specifications
- Brand: Space Age
- Model: SSU-MS-KA/R
- Product Type: Keyswitch
- Application/Usage: Smoke Detector
- Color Details: Stainless Steel - Gang Plate Red - Alarm LED
- Height: 4.5"
- Product Color: Red, Stainless Steel
- Width: 2.8"
- Compatibility: Space Age Electronics Duct Smoke Detectors Series: RW SM SL
- Shipping weight: 0.35 lb
Typical Uses
- Smoke detection in HVAC supply and return ducts
- Commercial HVAC fire protection
Please confirm that the SSU-MS-KA/R matches your system, compatible devices, mounting and finish requirements before ordering. Contact us with the model of your existing equipment if you need help checking compatibility.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Space Age SSU-MS-KA/R, ready to order.
- Model Type: Remote Test Station
- Product Type: Keyswitch
- Gang: 1-Gang
- Series: MS
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