# NSi Industries Twin Probe Voltage Tester TES-111

Twin-probe format indicates AC presence from 80–250 VAC, not for buyers who need a numerical voltage reading.

- [Original product page](https://www.ofertitastop.com/us/product/nsi-industries-twin-probe-voltage-tester)
- [View offer](https://www.ofertitastop.com/us/visit/nsi-industries-twin-probe-voltage-tester)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-17T22:29:57.003Z
- SKU: ofertitastop-us-101739
- Category: Electronics > Electronics Accessories > Power > Surge Protection Devices
- Source store: amazon US
- Active deal: Yes
- Price: 5.22 USD
- Previous price: 6.53 USD
- Discount: 20%
- Rating: 4.7 / 5
- Reviews: 939

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

If you need a straightforward indication of AC voltage, a neon tester keeps the job simpler than a tool designed to show a numerical reading. If you prioritize a quick presence check, this format is worth considering, if you prefer an exact voltage value, look for a tester that provides one.

The TES-111 uses a neon light to indicate AC voltage within its stated 80–250 VAC range. Its description lists a double-insulated housing, test leads, and a pocket clip.

## Getting the most from it
This tester is geared toward checking for AC voltage presence, not measuring and displaying a precise value. For example, during a basic check of an AC circuit, the neon light gives you an indication within the listed range. The stated range matters: this is not presented as a general-purpose tester for every voltage or electrical measurement.

The pocket clip is a practical detail if you want to keep the tester close at hand while working. The test leads and double-insulated housing are part of the listed setup, but the description does not give lead length, dimensions, or other operating details. Follow appropriate electrical safety procedures, an indicator alone should not be treated as proof that a circuit is safe to handle.

## Why it’s worth it
The appeal here is a focused job and a simple visual signal. There’s no numerical reading to interpret: the neon light indicates the presence of AC voltage from 80–250 VAC. That can suit someone who wants a compact, direct check rather than a more measurement-oriented approach. The country of origin is listed as the United States.

It’s a great fit if you want a twin-probe voltage tester with a pocket clip and a clearly stated AC range. From the way it is set up, its value is in indicating presence, not giving a detailed picture of the circuit. That distinction helps set expectations before you buy.

## Worth noting
The listed range is specific, and the description only mentions AC voltage. It does not claim DC testing, a digital display, or a numerical voltage measurement, so don’t choose it on the assumption that it offers those functions. That’s the main tradeoff versus a meter intended for more detailed readings.

It may not suit you if your work calls for an exact voltage value, measurements beyond the stated range, or functions not listed here. The product information also leaves out details such as dimensions and lead length, which may matter if you have a particular storage or reach requirement.

## Buying verdict
Choose the NSi Industries TES-111 if a neon indication of AC voltage presence from 80–250 VAC is the specific task you need to handle, and the pocket-clip format appeals to you. Pass on it if you need a numerical reading or broader measurement capabilities. Its description supports a narrow, clear use case, the right choice depends on whether that is enough for your electrical checks.

## Images

![NSi Industries Twin Probe Voltage Tester TES-111 — 1](https://www.ofertitastop.com/i/XQepM9xnb_JSfCPkpwGK9kUV_LzMAAS7MuKSsVrxwWloXKSxXZMFYLLToyGA0w2bbCqRkYtCsn6DjD8S-ysC9kpHWN2ozilgcOHdfYQuc6OgB0w7hXb5vg.jpg)

![NSi Industries Twin Probe Voltage Tester TES-111 — 2](https://www.ofertitastop.com/i/GFfrB0MgcPm-2tfL8Kslim29ZZbjSNlbEFYZvoebe1JFi61-c98-1T4GzFFn3RzPM1vnsSk0hi-4P8ej7wXwETleickhgt7ozb9SeVgWnMrDZvxiZvszCQ.jpg)

![NSi Industries Twin Probe Voltage Tester TES-111 — 3](https://www.ofertitastop.com/i/gFdOtl5OWLhY_XaUXVW4v3UdMPcdfmiRgli2od9nVGdrZIYRDaZ3jmmg_Y4Gf-mAokcwk_VqR611YXKl6qYvZmP6c7oNJVic6mvG0fnaBt6YnITogxevcQ.jpg)