INVISIO vs Sensear in 2026

Q: Does OperatorLink work on iPhone?

OperatorLink runs in a phone browser with no app install . A phone can add it to a home screen as a standalone app . On Android browsers, signals such as STOP make the phone buzz, but iPhone Safari ignores the buzz . A crew with iPhones should check whether the on-screen alert is enough for its needs.

Compare INVISIO and Sensear hearing protection and communication headsets for a crane crew, with prices, setup, and how to choose between them.

By 2Dig · 2026-10-14

2Dig is published by the makers of OperatorLink, which is compared here alongside other tools.

Sensear makes smart headsets that let workers talk face-to-face in noise up to 95 dB(A) and via radio or Bluetooth phone in noise up to 120 dB(A) ^[1]. Neither rival's cited sources describe how a signal such as STOP, HOLD or SLOW passes between crew members, so check with each provider what to use for those signals. OperatorLink shows STOP, HOLD and SLOW to the crew and passes button presses, chat and voice between phones in a browser ^[2]. Which one fits depends on whether the crew needs hearing protection headsets, noise-level communication, or jobsite signal handling.

Option	Own fee	Card fee
INVISIO	not published	not published
Sensear	not published	not published
OperatorLink	Free to use; no paid plan is built yet ^[2]	not published

The short answer

A crane crew member needs hearing protection on a loud site and a way to pass signals while the crane moves. INVISIO's H6 is a 6-port tactical smart hub for complex missions ^[3]. INVISIO Link provides unlimited mobility through wireless communications ^[4]. Sensear's smart headsets let workers communicate face-to-face in noise levels up to 95 dB(A) and via two-way radio and Bluetooth on mobile phones up to 120 dB(A) ^[1]. Neither rival's cited sources describe how their headsets pass a signal such as STOP, HOLD or SLOW on a jobsite, so check with each provider what to use for those signals. OperatorLink shows STOP, HOLD and SLOW to the crew and passes button presses, chat and voice between phones in a browser ^[2]. A crew that needs signal handling should ask each provider how to pass those signals on a jobsite.

What INVISIO and Sensear are built for

The V60 II is a tactical communication hub ^[4]. The H6 is a 6-port tactical smart hub for complex missions ^[4]. INVISIO Link provides wireless communications for mobility ^[4].

Sensear's smart headsets let workers communicate face-to-face in noise levels up to 95 dB(A) and via two-way radio and Bluetooth on mobile phones up to 120 dB(A) ^[1]. Sensear sells a stand that charges up to 45 headsets at once, and a smaller stand that charges up to 6 headsets for smaller crews ^[1]. These facts do not describe how either headset passes crane signals on a jobsite, so check with each provider what to use for those signals.

What OperatorLink is built for

OperatorLink is made by the team that publishes this site. For a crane crew member, it shows STOP, HOLD and SLOW to the jobsite crew, and passes button presses, chat and voice between phones in a phone browser ^[2]. A STOP releases every held direction on every phone and shows a full-screen alert to everyone else ^[2]. HOLD and SLOW stay on for everyone in the jobsite and are cleared when the last person leaves ^[2]. Holding a move button keeps sending that move to the other phones, and if the move stops arriving for 2 seconds, the other phones drop it ^[2]. One-tap radio-style calls such as Go Ahead, Copy That and All Clear are sent as chat messages ^[2]. Anyone who joins can take part in a voice call run from the phone browser ^[2]. It runs in a phone browser with no app install ^[2].

Pricing and fees

The facts gathered for this page give no price for any INVISIO headset, hub or accessory, so INVISIO's prices are not published here. The facts gathered for this page also give no price for any Sensear headset or Charge Rack, so Sensear's prices are not published here. OperatorLink is currently free to use, and no paid plan is built yet ^[2]. The card fee is not published for any of the three options. A crew that expects to pay a card fee should ask each provider for it before choosing.

Setting it up on a jobsite

OperatorLink runs in a phone browser with no app install ^[2]. The person who starts a jobsite shares a link or QR code, and the crew joins from it ^[2]. Phones can add the app to a home screen as a standalone app ^[2]. A jobsite link stops working 12 hours after the first person joins ^[2], and a jobsite with nobody in it is wiped after 3 idle hours ^[2]. Button presses, chat and voice pass between phones in the browser ^[2].

For INVISIO, the facts gathered here describe INVISIO Link for wireless communications ^[4]. To add a crew and pass signals on a jobsite, ask INVISIO directly how it is done. For Sensear, the facts describe a stand that charges up to 45 headsets at once and a smaller stand for up to 6 headsets ^[1], but do not describe how a crew is added or how crane signals pass, so ask Sensear for that before a shift. A crew should confirm the rest with each provider directly before a shift.

Things to check before you choose

Which noise level does the crew work in? Sensear's headsets let workers talk face-to-face up to 95 dB(A) and via radio or Bluetooth phone up to 120 dB(A) ^[1], so check whether the site noise stays within those levels.

Does the crew need to pass crane signals like STOP, HOLD and SLOW between phones? Neither INVISIO nor Sensear's cited sources describe that, so check whether a headset pairs with a tool that does.

How many headsets does the crew need to charge at once? Sensear's stands charge up to 45 headsets at once, or up to 6 headsets for smaller crews ^[1].

Does the crew need a stop that reaches every phone at once? OperatorLink's STOP shows a full-screen alert to everyone else ^[2], so check whether that suits how the crew works.

What will each headset or system cost, and is a card fee added on top?

How to choose

If the crew needs hearing protection in high-noise environments, the facts gathered here do not say which INVISIO headset provides it, so check INVISIO's product pages before choosing. If the crew needs to talk face-to-face in noise or use two-way radio and Bluetooth phones in noise up to 120 dB(A), Sensear's smart headsets are described as doing that ^[1]. If the crew needs a stop that reaches every phone, OperatorLink's sources describe a STOP that releases every held direction and shows a full-screen alert to everyone else ^[2]. If the crew needs HOLD and SLOW to stay on for everyone until the jobsite empties, OperatorLink's sources describe that as well ^[2]. If the crew needs a free start with no paid plan, OperatorLink is currently free to use ^[2]. A crew that needs both hearing protection and jobsite signal passing should check each option against both needs, because no single source here covers both.

Frequently asked questions

Is OperatorLink free to use?

OperatorLink is currently free to use, and no paid plan is built yet ^[2]. The sources cited on this page give no price beyond that. The card fee is not published for any option on this page, so a crew that expects to pay one should check before choosing. Prices can change, so confirm the current terms with the product before a shift.

Does INVISIO make hearing protection headsets?

The facts gathered here do not say which INVISIO headsets provide hearing protection, so check INVISIO's product pages for that before choosing. The facts gathered here give no price for any INVISIO headset.

Can Sensear headsets work in high noise levels?

Sensear's smart headsets let workers communicate face-to-face in noise levels up to 95 dB(A) and via two-way radio and Bluetooth on mobile phones up to 120 dB(A) ^[1]. The facts gathered here give no price for any Sensear headset.

Does OperatorLink work on iPhone?

OperatorLink runs in a phone browser with no app install ^[2]. A phone can add it to a home screen as a standalone app ^[2]. On Android browsers, signals such as STOP make the phone buzz, but iPhone Safari ignores the buzz ^[2]. A crew with iPhones should check whether the on-screen alert is enough for its needs.

Can INVISIO or Sensear pass crane signals like STOP and HOLD?

Neither INVISIO nor Sensear's cited sources describe how a signal such as STOP, HOLD or SLOW passes between crew members on a jobsite, so ask each provider what to use for those signals. INVISIO's H6 is a 6-port tactical smart hub for complex missions ^[3], and Sensear's headsets let workers talk in noise ^[1]. A crew that needs signal passing should ask each provider how to pass those signals, and can also use OperatorLink, which shows STOP, HOLD and SLOW to the crew ^[2].

OperatorLink is currently free to use, and no paid plan is built yet. ^[2]

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