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ShockWatch Impact Label

ShockWatch impact indicators for packaging deter mishandling and reduce damage related costs by indicating when fragile products have been exposed to a potentially damaging impact during transit or in storage. ShockWatch labels are tamperproof, mechanically-activated devices that turn bright red when an impact occurs.

Over 7 million ShockWatch labels are used each year as a highly visible deterrent to product mishandling.


  • Scientific Instruments
  • Medical Devices
  • Auto and Truck Parts
  • Industrial Equipment
  • Art


  • Glass
  • Consumer Electronics
  • Aerospace Components
  • Defense Components
  • Small Distribution Transformers
  • Packaging/Crating
  • Musical Instruments/Equipment
  • Construction Fixtures
  • Appliances
  • HVAC

Sensitivity Range

25G, 37G, 50G, 75G, 100G


0.5 – 50 ms



Operating Temperature

-13°F to 176°F

Shelf Life

2 years from date of sale when stored at standard temperature and pressure (68°F, 1 ATM)


3.8 in x 3.8 in

Part Numbers

L-30 ShockWatch Label 100G (Green) 20100
L-35 ShockWatch Label 75G (Orange) 20300
L-47 ShockWatch Label 50G (Red) 20500
L-55 ShockWatch Label 37G (Purple) 20686
L-65 ShockWatch Label 25G (Yellow) 20700

Selection Guide

0-10 lbs
0-4.56 kg
L-30 (100G) L-30 (100G) L-35 (75G) L-35 (75G) L-35 (75G)
10-25 lbs
4.56-11.34 kg
L-30 (100G) L-35 (75G) L-35 (75G) L-47 (50G) L-47 (50G)
25-50 lbs
11.34-22.68 kg
L-35 (75G) L-35 (75G) L-47 (50G) L-47 (50G) L-55 (37G)
50-100 lbs
22.68-45.36 kg
L-35 (75G) L-47 (50G) L-47 (50G) L-55 (37G) L-55 (37G)
100-250 lbs
45.36-113.40 kg
L-47 (50G) L-47 (50G) L-55 (37G) L-55 (37G) L-65 (25G)
250-1,000 lbs
113.40-453.59 kg
L-47 (50G) L-47 (50G) L-55 (37G) L-65 (25G) L-65 (25G)
1,000+ lbs
453.59+ kg
L-55 (37G) L-65 (25G) L-65 (25G) L-65 (25G)

This product contains Ethylene Glycol a chemical known to the state of California to cause birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov/product.


Alert Sticker

This unmistakable alert affixes directly to the bill of lading to caution the carrier and consignee that the shipment is being monitored for mishandling.

Alert Tape

ShockWatch packing tape provides an unmistakable visual alert that impact indicators are in use and reinforcement that proper handling procedures are required.

ShockWatch Warning Label SpotSee Impact Indicators

Companion Label

A companion label provides a visual warning that the package is being monitored and has instructions on what to do should mishandling occur.

Related Products


Gate your supply chain with this cost-effective impact indicator label that turns red if your package takes a hit.

MAG 2000

Monitor fragile good and freight containers greater than 500 lbs. with this resettable and reusable impact indicator.

ShockWatch 2

Field-armable, tamperproof impact indicators that turn bright red when your package takes a potentially damaging impact.

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