Federal Signal’s MicroStat® is a compact, Type 4X status indicator, Type 1 with optional sounder. Ideal for OEM applications, the MicroStat comes pre-assembled as 1-, 2-, 3-, 4-, or 5-high light units. The user selects combinations from five colors: Amber, Blue, Clear, Green and Red. O-rings between each segment provide a water-tight and dust-tight seal. The base of each light can be surface or pipe mounted (3/4-inch NPT).
The lenses lock together and snap apart with a simple twisting motion, allowing for easy lamp changes and quick lens resequencing. A rugged vibration-resistant, thick-filament wedge lamp fills each lens with light, providing excellent optical performance.
Wire connections are made through a 2-piece terminal block. The MicroStat is designed to work with PLC outputs including “Triacs”.
An optional sound module can be installed in the top position of any MicroStat as one of the 5 units. The Sound Module Kit consists of a slotted grille and board-mounted piezoelectric horn. The sounder plugs directly into the wedge socket.


Mount Surface
3/4" Pipe
Voltage 24VAC/VDC
Operating Current .2 Amps in 1-High
.4 Amps in 2-High
.6 Amps in 3-High
.8 Amps in 4-High
1.0 Amps in 5-High
Light Source/Lamp Style Wedge Lamp #655
Lamp Life 7,000 Hours
Operating Temperature Minimum 32 °F
Operating Temperature Maximum 104 °F
Enclosure Rating Type 4X
Dome Colors Amber
Operating Temperature Range 32°F to 104°F
Net Weight
1-high 0.40 lb
2-high 0.55 lb
3-high 0.65 lb
4-high 0.85 lb
5-high 1 lb
Shipping Weight
1-high 0.70 lb
2-high 0.85 lb
3-high 1.30 lb
4-high 1.50 lb
5-high 1.65 lb

Ordering Information

Model Types
Model Description UPC
MSL1-024A Microstat, 1-high, 24VDC/AC, amber 782979201649
MSL1-024B Microstat, 1-high, 24VDC/AC, blue 782979201656
MSL1-024G Microstat, 1-high, 24VDC/AC, green 782979201670
MSL1-024R Microstat, 1-high, 24VDC/AC, red 782979201687
MSL1L-024A Microstat, LED, 1 high, 24VDC, amber 782979225577
MSL1L-024B Microstat, LED, 1 high, 24VDC, blue 782979225584
MSL1L-024C Microstat, LED, 1 high, 24VDC, clear 782979225591
MSL1L-024G Microstat, LED, 1 high, 24VDC, green 782979225607
MSL1L-024R Microstat, LED, 1 high, 24VDC, red 782979225614
MSL1-120A Microstat, 1-high, 120VAC, amber 782979201694
MSL1-120B Microstat, 1-high, 120VAC, blue 782979201717
MSL1-120C Microstat, 1-high, 120VAC, clear 782979201724
MSL1-120G Microstat, 1-high, 120VAC, green 782979201731
MSL1-120R Microstat, 1-high, 120VAC, red 782979201748
MSL1L-120A Microstat, LED, 1 high, 120VAC, amber 782979225621
MSL1L-120B Microstat, LED, 1 high, 120VAC, blue 782979225638
MSL1L-120C Microstat, LED, 1 high, 120VAC, clear 782979225645
MSL1L-120G Microstat, LED, 1 high, 120VAC, green 782979225652
MSL1L-120R Microstat, LED, 1 high, 120VAC, red 782979225669
MSL1-240B Microstat, 1-high, 240VAC, blue 78297920176
MSL1-240G Microstat, 1-high, 240VAC, green 78297920178
MSL1-240R Microstat, 1-high, 240VAC, red 78297920179
MSL2-024AB Microstat, 2-high, 24VDC/AC, amber/blue 782979209201
MSL2-024AC Microstat, 2-high, 24VDC/AC, amber/clear 782979209218
MSL2-024AG Microstat, 2-high, 24VDC/AC, amber/green 782979209225
MSL2-024AR Microstat, 2-high, 24VDC/AC, amber/red 782979201816
MSL2-024BC Microstat, 2-high, 24VDC/AC, blue/clear 782979209232
MSL2-024BG Microstat, 2-high, 24VDC/AC, blue/green 782979209249
MSL2-024BR Microstat, 2-high, 24VDC/AC, blue/red 782979209256
MSL2-024CG Microstat, 2-high, 24VDC/AC, clear/green 782979209263
MSL2-024CR Microstat, 2-high, 24VDC/AC, clear/red 782979209270
MSL2-024GR Microstat, 2-high, 24VDC/AC, green/red 782979201823
MSL2-024R-MSF Microstat, 2-High, 24VDC/AC, sounder, flashing, red 782979217602
MSL2-120AB Microstat, 2-high, 120VAC, amber/blue 782979209287
MSL2-120AC Microstat, 2-high, 120VAC, amber/clear 782979209294
MSL2-120AG Microstat, 2-high, 120VAC, amber/green 782979209300
MSL2-120AR Microstat, 2-high, 120VAC, amber/red 782979201830
MSL2-120BC Microstat, 2-high, 120VAC, blue/clear 782979209317
MSL2-120BG Microstat, 2-high, 120VAC, blue/green 782979209324
MSL2-120BR Microstat, 2-high, 120VAC, blue/red 782979209331
MSL2-120B-MSF Microstat, 2-High, 120VAC, sounder, flashing, blue 782979225782
MSL2-120CG Microstat, 2-high, 120VAC, clear/green 782979209348
MSL2-120CR Microstat, 2-high, 120VAC, clear/red 782979209355
MSL2-120GR Microstat, 2-high, 120VAC, green/red 782979201847
MSL2-240AR Microstat, 2-high, 240VAC, amber/red 78297920185
MSL2-240GR Microstat, 2-high, 240VAC, green/red 78297920186
MSL3-024 Microstat, 3-high, 24VDC/AC 782979201878
MSL3-120 Microstat, 3-high, 120VAC 782979201885
MSL3-240 Microstat, 3-high, 240VAC 78297920189
MSL3L-024RAG Microstat, LED, 3 high, 24VDC, red/amber/green 782979225676
MSL3L-120RAG Microstat, LED, 3 high, red/amber/green 782979225683
MSL4-024 Microstat, 4-high, 24VDC/AC 782979201915
MSL4-120 Microstat, 4-high, 120VAC 782979201922
MSL4-024BAR-MSF Microstat, 4-High, 24VDC/AC, sounder, flashing, blue/amber/red 782979217664
MSL4-120BAR-MSF Microstat, 4-High, 120VAC, sounder, flashing, blue/amber/red 782979217671
MSL5-024 Microstat, 5-high, 24VDC/AC 782979201946
MSL5L-024 Microstat, LED, 5 high, 24VDC 782979225690
MSL5-120 Microstat, 5-high, 120VAC 782979201953
MSL5L-120 Microstat, LED, 5 high, 120VAC 782979225720
MSLED-A LED lamp, Microstat, 24VAC/DC, amber 782979201373
MSLED-B LED lamp, Microstat, 24VAC/DC, blue 782979201380
MSLED-C LED lamp, Microstat, 24VAC/DC, clear 782979202493
MSLED-G LED lamp, Microstat, 24VAC/DC, green 782979201397
MSLED-R LED lamp, Microstat, 24VAC/DC, red 782979201410
Product # Description UPC
MSLBRCKT Microstat mounting bracket 782979204282
MSP-4 Pipe, Microstat, 4" 782979201328
MSP-16 Pipe, Microstat, 16" 782979201335
MSP-32 Pipe, Microstat, 32" 782979201342
MSS-024 Sound module, Microstat, 24VDC 782979206989
MSS-120 Sound module, Microstat, 120VAC 782979206996
MSTB Base, tulip, Microstat 782979201359
Replacement Parts
Description Part Number UPC
Kit, Microstat-Unistat Hardware And Lens K844700351A 782979127963
Kit, Connector, 3, 4 And 6 Plug K140373A-03 782979116134
Lamp, 28V, Wedge Type, #655 K8107185A 782979116028