Laboratory analytical instruments (except optical) manufacturing · California

Sierra Monitor Corporation

Name: Sierra Monitor Corporation Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Milpitas, CA · ~37 workers · 4 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.8
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Sierra Monitor Corporation runs at 25% of its industry's injury rate - far safer than the typical Laboratory analytical instruments (except optical) manufacturing workplace, earning a grade A.

Sierra Monitor Corporation: 0.8 TCR = 25% of Laboratory analytical instruments (except optical) manufacturing BLS 3.3 · 4y Form 300A (see methodology below)

Sierra Monitor Corporation safety composite

Sierra Monitor Corporation scores strongest on dart rate (safer than 75% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

64/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): C 0.81 per 100 workers

Safer than 64% of industry peers
DART rate: B 0 per 100 workers

Safer than 75% of industry peers
Fatalities: D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Sierra Monitor Corporation held a steady TCR band

Sierra Monitor Corporation's TCR held near 0.0 from 0.0 in 2019 to 0.0 in 2022. Peak filing year was 2020 at 3.2 TCR. In 2022, DART was 0× this establishment's average TCR (severity share of cases).

2019=0.0 · 2020=3.2 · 2021=0.0 · 2022=0.0

OSHA ITA Form 300A scorecard

Establishment book 334516 · Milpitas, CA AT/BELOW-IND · SMALL

Grade A · TCR 0.8 · 25% of ind

DART 0.0 DART
RANK #16/51
PHOTO Microsense - Lowell
BOOK 4y book
INJ 1 inj
SIZE ~37 FTE

Nearest TCR peer: Microsense - Lowell (0.0 TCR gap)

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This site

0.8
Microsense - L

0.8
TA Instruments

0.8
Brea, CA

0.8
USA Field Forc

0.8

What this shows Sierra Monitor Corporation averages 0.8 TCR (25% of the Laboratory analytical instruments (except optical) manufacturing BLS benchmark).

Sierra Monitor Corporation TCR series: 2019=0 · 2020=3.2 · 2021=0 · 2022=0 · BLS 3.3

Where Sierra Monitor Corporation falls in its industry

213 Laboratory analytical instrume establishments

Safer than 64% of graded establishments in this industry, whose median TCR is 1.2.

Grade A

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #16 safest of 51 Laboratory analytical instrume employers in California.

Sierra Monitor Corporation (37 employees, TCR 0.8) among 29 same-industry peers, split at the industry median of 133 employees and a TCR of 1.2

Sierra Monitor Corporation has fewer employees than the Laboratory analytical instruments (excep median and a lower injury rate than the industry's median TCR of 1.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year	TCR	DART	Injuries
2022	0.0	0.0	0
2021	0.0	0.0	0
2020	3.2	3.2	1
2019	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

334516 · CA · Milpitas

213 Laboratory analytical instruments (except optical) manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 161 employers in Milpitas, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Microsense - Lowell	LOWELL, MA	0.8 TCR
NAICS-TCR	TA Instruments Eden Prairie, MN	EDEN PRAIRIE, MN	0.8 TCR
NAICS-TCR	Brea, CA	BREA, CA	0.8 TCR
NAICS-TCR	USA Field Force	MENLO PARK, CA	0.8 TCR
STATE-SIZE	BULLSEYE FARMS LLC	WOODLAND	37 FTE
STATE-SIZE	KP Spraying LLC	MADERA	37 FTE
STATE-SIZE	KAN - 01	FRESNO	37 FTE
STATE-SIZE	Kimberlina Shop	BAKERSFIELD	37 FTE
CITY-NEAR	California Department of Transportation Facility 454	Milpitas	2,891 FTE
CITY-NEAR	California	Milpitas	2,531 FTE
CITY-NEAR	2636-CALIFORNIA, MILPITAS	Milpitas	2,400 FTE
CITY-NEAR	011 SanDisk HQ	Milpitas	1,952 FTE
NAT-TCR	Mystic	Charlestown, MA	0.8 TCR
NAT-TCR	Delaware City Refining Company	Del City, DE	0.8 TCR
NAT-TCR	Shadydale	Shadydale, GA	0.8 TCR
NAT-TCR	Microsense - Lowell	Lowell, MA	0.8 TCR
NAT-SIZE	Delmar Company	Lakeville, MN	37 FTE
NAT-SIZE	Grand Lake	Citra, FL	37 FTE
NAT-SIZE	BTR-ODFL	Baton Rouge, LA	37 FTE
NAT-SIZE	SouthernCarlson - Phoenix	Phoenix, AZ	37 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2022, 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.