Stack Lights with Buzzer
These lights have LED bulbs for years of maintenance-free operation and can be wired as either continuous or flashing. The beep or buzzer alerts workers when they're outside a direct line of sight. Lights meet IP65 for protection from washdowns.
Replacement mounting pipes can be cut to length. Use them to lengthen the existing pipe or to replace it entirely.
For technical drawings and 3-D models, click on a part number.

No. of Lights | Light Color | Ht. | Dia. | Sound Pattern | Volume | Volume Control | Current | No. of Wire Leads | Wire Lead Lg. | Thread Size | Gender | Material | Environmental Rating | Each | |
LED | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC/240V AC | |||||||||||||||
1 | Blue | 20 1/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 0000000 |
1 | Green | 20 1/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
1 | Red | 20 3/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
1 | Yellow | 20 1/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
2 | Green/Red | 22 3/8" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
2 | Red/Yellow | 22 1/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
3 | Green/Red/Yellow | 24" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
4 | Blue/Green/Red/Yellow | 25 1/2" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
5 | Blue/Green/Red/White/Yellow | 27 1/8" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 10 | 39" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
24V DC | |||||||||||||||
1 | Blue | 18" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
1 | Green | 18" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
1 | Red | 18" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
1 | Yellow | 18" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
2 | Green/Red | 19 5/8" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
2 | Red/Yellow | 19 5/8" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
3 | Green/Red/Yellow | 21 1/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |
4 | Blue/Green/Red/Yellow | 22 3/4" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 000000000 | 000000 |
5 | Blue/Green/Red/White/Yellow | 24 3/8" | 2 3/8" | Continuous Pulse | 88 db @ 1 Meter | Adjustable | 0.04 A @ 24 V DC | 9 | 43" | M22 × 1.5mm | Female | Plastic | IP65 NEMA 4X NEMA 13 | 00000000 | 000000 |



3-in-1 Compact Stack Lights with Buzzer

Good for tight spaces where a tower of lights won’t fit, these emit three colors from a single lens. They have an LED bulb for years of maintenance-free operation. The buzzer alerts workers when they're outside a direct line of sight. Rated NEMA 4X for washdown applications.
For technical drawings and 3-D models, click on a part number.
Light Color | Light Pattern | Ht. | Dia. | Sound Pattern | Volume | Current | Pipe Size | Gender | Thread Type | No. of Wire Leads | Wire Lead Lg. | Material | Environmental Rating | Each | |
LED | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC | |||||||||||||||
Amber/Blue/Red | Flashing | 7 3/4" | 3" | Continuous, Pulse | 79 dBA @ 10 ft. | 0.12 A @ 120 V AC | 3/4 | Female | NPT | 5 | 18" | Plastic | IP65, NEMA 4X | 0000000 | 0000000 |
Amber/Green/Red | Flashing | 7 3/4" | 3" | Continuous, Pulse | 79 dBA @ 10 ft. | 0.12 A @ 120 V AC | 3/4 | Female | NPT | 5 | 18" | Plastic | IP65, NEMA 4X | 0000000 | 000000 |
24V DC | |||||||||||||||
Amber/Blue/Red | Flashing | 7 3/4" | 3" | Continuous, Pulse | 79 dBA @ 10 ft. | 0.12 A @ 24 V DC | 3/4 | Female | NPT | 5 | 18" | Plastic | IP65, NEMA 4X | 0000000 | 000000 |
Amber/Green/Red | Flashing | 7 3/4" | 3" | Continuous, Pulse | 79 dBA @ 10 ft. | 0.12 A @ 24 V DC | 3/4 | Female | NPT | 5 | 18" | Plastic | IP65, NEMA 4X | 0000000 | 000000 |
Build-Your-Own Stack Lights

Design a stack light with your choice of light pattern and color. Start with a base, then add up to five modules total—twist and lock them together. All components except for replacement bulbs meet NEMA 4X for protection from corrosion and washdowns.
Sound module must be placed in the top position.
LED bulbs last longer than incandescent bulbs and provide years of maintenance-free operation.
For technical drawings and 3-D models, click on a part number.



Mount Type | Ht. | Dia. | For Max. No. of Sound Modules | Gender | Thread Size | Fasteners Included | No. of Mounting Holes | Mounting Hole Dia. | Electrical Connection | Voltage | Material | Includes | Environmental Rating | Specifications Met | Each | |
Surface | 13 1/4" | 2 3/4" | 1 | __ | __ | No | 4 | 1/4" | Screw Terminals | 120V AC/24V AC | Plastic | Top cap | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0000000 | 0000000 |
Pipe | 13 1/2" | 2 3/4" | 1 | Female | M20 | No | __ | __ | Screw Terminals | 120V AC/24V AC | Plastic | Top cap | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0000000 | 000000 |

Light Pattern | Ht. | Dia. | Environmental Rating | Specifications Met | Choose a Light Color | Current, A | Each | |
120V AC | ||||||||
---|---|---|---|---|---|---|---|---|
Incandescent | ||||||||
Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.06 | 0000000 | 000000 | |
LED | ||||||||
Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.03 | 000000 | 000000 | |
Flashing | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.03 | 000000 | 000000 | |
Strobe | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.01 | 000000 | 000000 | |
24V AC | ||||||||
Incandescent | ||||||||
Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.03 | 0000000 | 00000 | |
LED | ||||||||
Continuous | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.05 | 000000 | 000000 | |
Flashing | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.06 | 000000 | 000000 | |
Strobe | 2 3/8" | 2 7/8" | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.13 | 000000 | 000000 |


Sound Pattern | Ht. | Dia. | Signal Type | Audible Signal Type | Volume | Volume Control | Material | Environmental Rating | Specifications Met | Current, A | Each | |
120V AC/120V DC | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Continuous, Pulse | 2 3/4" | 2 7/8" | Audible Alarm | Buzzer | 88-100 dBA @ 10 ft. | Adjustable | Plastic | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.04 | 0000000 | 0000000 |
24V AC/24V DC | ||||||||||||
Continuous, Pulse | 2 3/4" | 2 7/8" | Audible Alarm | Buzzer | 88-100 dBA @ 10 ft. | Adjustable | Plastic | NEMA 4X, NEMA 13, IP66 | UL Listed, C-UL Listed, CSA Certified, CE Marked, UL 508, IEC 60947-5-1 | 0.09 | 0000000 | 000000 |
3-in-1 Compact Stack Lights

Use these lights in tight spaces in place of a tower. They emit three colors from a single lens. Color is selectable. Lights have an LED bulb that provides years of maintenance-free operation. Rated NEMA 4X for protection from corrosion and washdowns.
For technical drawings and 3-D models, click on a part number.
Light Color | Light Pattern | Ht. | Dia. | Female Pipe Size | Male Pipe Size | Thread Type | No. of Wire Leads | Wire Lead Lg. | Material | Environmental Rating | Fasteners Included | Current, A | Each | |
120V AC | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LED | ||||||||||||||
Amber/Blue/Red | Flashing | 3 7/8" | 3 1/4" | 1/2 | 3/4 | NPT | 4 | 18" | Plastic | NEMA 4X | Yes | 0.1 | 0000000 | 0000000 |
Amber/Green/Red | Flashing | 3 7/8" | 3 1/4" | 1/2 | 3/4 | NPT | 4 | 18" | Plastic | NEMA 4X | Yes | 0.1 | 0000000 | 000000 |
24V DC | ||||||||||||||
LED | ||||||||||||||
Amber/Blue/Red | Flashing | 3 7/8" | 3 1/4" | 1/2 | 3/4 | NPT | 4 | 18" | Plastic | NEMA 4X | Yes | 0.15 | 0000000 | 000000 |
Amber/Green/Red | Flashing | 3 7/8" | 3 1/4" | 1/2 | 3/4 | NPT | 4 | 18" | Plastic | NEMA 4X | Yes | 0.15 | 0000000 | 000000 |
Replacement Lens | 0000000 | Each | 000000 |