NSI
Brand Score B-5 products · 2 categories · Avg 4.34★ · 4,035 reviews
Price range $7 – $95
Last analyzed: June 17, 2026
Browse products ↓Quick Take on NSI
Score: B-- •Most products (80%) hit the 4-star mark — dependable across the board
- •A specialist in timers (4.13★ average) rather than a generalist
- •A narrow lineup (2 categories) — limited options if you want range
NSI Industries TES-111 Twin Probe Voltage Tester
4.7★ with 882 reviews — top-rated in testers
Brand Score: B-
B- in timers — NSI's 5 products average 4.34★ across 2 categories, with timers as the strongest line (4.13★ avg).
NSI earns a Brand Score of B- on Mubboo, based on analysis of 5 products across 2 categories. Value positioning (98/100) is the brand's strongest dimension. Category depth (25/100) is the area with the most room for improvement. NSI's primary strength is in timers, where it averages 4.13★.
How we calculate Brand Score
Quality Consistency (40%): percentage of products rated 4+ stars
Market Presence (25%): total review volume, log-scaled
Value Positioning (20%): average price vs category average
Category Depth (15%): number of active product categories
Based on 5 NSI products · last analyzed June 17, 2026.
How NSI Compares
NSI | Most Popular BN-LINK | Highest Rated Intermatic | Best Value HBN | |
|---|---|---|---|---|
| Avg Rating | 4.34★ | 4.33★ | 4.48★ | 4.36★ |
| Total Reviews | 4,035 | 89,251 | 17,205 | 21,824 |
| Avg Price | $43 | $25 | $101 | $17 |
| Brand Score | B- | A- | C+ | B+ |
Show more details
| Products | 5 | 10 | 8 | 5 |
| Quality Rate | 80% | 100% | 100% | 100% |
| Categories | 2 | 1 | 1 | 1 |
NSI
Avg Rating: 4.34★
Reviews: 4,035
Avg Price: $43
80% rated 4+★
Our Top 3 from NSI
NSI Industries TES-111 Twin Probe Voltage Tester
4.7★ with 882 reviews — top-rated in testers
NSI Industries TORK RTN112 Indoor 15-Amp Plug-in
4.4★ with 1K reviews — a solid choice in timers
NSI Industries TES-2 Voltage Tester
4.6★ with 1.1K reviews — top-rated in testers
Where NSI Is Strongest
timers
testers
What You'll Spend on NSI
Most NSI products fall between $7 and $95.
NSI prices in line with the category average — a balanced mix of cost and quality.
What People Say About NSI
Aggregated from review themes across 5 NSI products.
- Good value for money
- Easy to use
- Accurate / reliable readings
- Easy to set up and program
- Quality control issues with test leads or defective units
- Requires patience or learning curve for accurate results
- Tiny pegs/pins hard to adjust
Where to Buy NSI
NSI products are available on Amazon — 5 products across 2 categories.
Browse NSI on Amazon →Brand Bottom Line
- Brand Score
- B-
- Best Product
- Industries TES-111 Twin Probe Voltage Tester ($7) Buy on Amazon →
- Price Level
- Mid-range — near category average
- Quality
- 80% of products rated 4+★
- Best For
- Shoppers comparing options within timers
- Alternatives
- BN-LINK (Score A-) · Intermatic (Score C+)
NSI delivers dependable value — start with its best-reviewed products. Start with the Industries TES-111 Twin Probe Voltage Tester.
Frequently Asked Questions
Is NSI a good brand?
NSI earns a Brand Score of B- on Mubboo. 80% of its 5 products are rated 4 stars or above, which puts it in the reliable range in timers. The main consideration is pricing — NSI products average $43, in line with the category average.
What is the best NSI product to buy?
Based on 882 reviews and a Mubboo Score of A+, the Industries TES-111 Twin Probe Voltage Tester ($7) is NSI's top pick. For a budget option, the Industries TORK RTN112 Indoor 15-Amp Plug-in ($8) delivers 4.4★ at -17% of the cost.
Is NSI worth the premium price?
NSI prices close to the category average ($43 vs $42), so you're not paying a brand premium.
NSI vs BN-LINK: which is better?
NSI scores B- vs BN-LINK's A-. NSI edges ahead on average rating (4.34★ vs 4.33★), while BN-LINK has more total reviews (89K vs 4K).
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Brand Score, product rankings, or editorial judgments.