GRI TS-30-KNOX Tamper Switch, Open Loop
SKU
TS-30-KNOX
Model No
TS-30-KNOX
$112.32
GRI TS-30-KNOX Tamper Switch, Open Loop is available to buy in increments of 10
Product Highlights
- Recessed adjustable plunger from 1/4″ to 1/2″
- 3/8″ diameter (Smallest in the industry!)
- Easy to install
- Replaces old mechanical tampers
- Strong spring action

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The GRI TS-30-KNOX Tamper Switch is an innovative adjustable plunger actuated switch designed for applications with space constraints. Featuring a compact 3/8” diameter, it is perfect for doors and windows where traditional switches may be too bulky. Its reliable construction with nylon and stainless steel ensures durability, while the unique oval flange design prevents locking issues from environmental changes. Ideal for replacing outdated mechanical tampers, the TS-30-KNOX guarantees easy installation and long service life.
GRI TS-30-KNOX Tamper Switch Features
- Recessed adjustable plunger: Adjusts from 1/4” to 1/2” to suit various applications.
- 3/8” diameter: The smallest in the industry, allowing for installation in tight spaces.
- Easy to install: Simplifies the replacement of old mechanical tampers with minimal effort.
- Strong spring action: Ensures reliable performance and durability over time.
- Press to fit: Facilitates quick and hassle-free installation without complex tools.
- 12” #22 AWG leads: Allows for versatile wiring options suitable for a range of installations.
- Screw down flange on TS-20: Provides positive retention for secure installation.
- Longer leads available: Custom options for zip cords or jacketed cables can be requested.
- Hermetically sealed: Protects internal components from moisture and contamination.
- Plated contacts: Resists sticking or freezing for dependable operation in varying conditions.
- Travel distance: Total .250; pre-travel is .105 ± .035, allowing for accurate sensitivity.
- Mounting hardware included: Provides everything needed for a straightforward installation.
- Supervisory loops upon request: Enhances monitoring and security capabilities.
GRI TS-30-KNOX Detailed Specifications
| Feature | Detail |
| Type | Adjustable plunger switch |
| Diameter | 3/8” |
| Adjustment Range | 1/4” to 1/2” |
| Material | Nylon, Stainless steel for spring |
| Leads | 12” #22 AWG |
| Resolution | Travel distance: .250; Pre-travel: .105 ± .035 |
| Flange Type | Oval with screw down option |
| Sealing | Hermetically sealed |
| Availability | Longer leads or supervisory loops upon request |
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