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Zerodha Sentinel

Zerodha Sentinel helps the user to set the triggers and alerts when the assumed trigger conditions are matched. Zerodha Sentinel is a strong tool for traders to give real-time market alerts for almost 90,000+ stocks, bonds, commodities, F&O contracts, and currencies across exchanges on OHLC, bids, and offers, and more, in addition to the price.

It is very difficult in daily busy schedule to track each and every movement of the market which you wish to capture. This is a time-consuming job as well as need lots of analysis. To overcome this issue, Zerodha had created an app that alerts you by a new methodology which is based on the triggers. Sentinel app alerts user by sending notifications on email id and Zerodha Kite mobile app.

    Sentinel Triggers

    The key features of the sentinel app is triggers. There are 15 triggers that the trader can set using free version. The premium and pro version users have even more features that we will discuss later. Let's understand how to create a basic trigger.  For instance, we want compare the last traded price of ICICI Bank from the last traded price of HDFC Bank. We name the trigger as Project A. We set the trigger to know if the value is greater than the HDFC Bank.


    Now, we click create and the trigger is created. The trigger will be active for one day and the notifications will be sent to your Kite Trading platform (Web or Mobile) and the email that we set on the Sentinel website. The trigger will look like this:


    As you can see the trigger is active. The only drawback in this app is that we have to set the triggers to active every day. For pro users there is an additional feature ADVANCED TRIGGERS.

    Sentinel Advanced Triggers

    Advanced triggers are only for pro users. These triggers are based on scripted language and arithmetic expressions. This can be easily decoded in Sentinel pro and they are classified by FUNCTIONS.

    Sentinel Functions

    Functions are nothing but the details of the instruments. Functions are classified into 3 types:

    • Instrument Function
    • Date Function
    • Math Function

    Attributes and Operations

    Attributes are the functions of the instruments. The following are all the attributes in the Sentinel app

    • Last traded price
    • Low price
    • High price
    • Open price
    • Close price
    • Day change
    • Day change percent
    • Intraday change
    • Intraday change percent
    • Last traded quantity
    • Average trade price
    • Volume Traded
    • Total buy quantity
    • Total sell quantity
    • Open interest
    • Open interest day high
    • Open interest day low

    Operators are mathematical constructs which are used to compare or bind two values. They are:

    • Greater than (>)
    • Greater than equal to (>=)
    • Less than(<)
    • Less than equal to (<=)
    • Equals (==)

    Security of Sentinel

    Sentinel app is secured by SSL encryption and 24/7 support team ready to kick out the hacker or hacker type accounts for the betterment of the security. Data transmissions are impossible because of maintenance of the identity of the customers.

    Latest update on Zerodha Sentinel

    May 2019 - Zerodha removed the charges from Sentinel, now its available for free to all the Zerodha customers.

    Dec 2018

    The latest update on Sentinel is based on Basket Orders. With basket orders in place, users can create a basket and execute it depending on the trigger condition. You will get an alert in the same way you were getting till the previous version, but now you can execute complete basket order in one click.

    • Now user can create Basket order with Multiple Scripts, ETF and F&O contracts.
    • Equity SIP alerts is possible.
    • GTC/GTD alerts can be created.
    • Conditional based multi-level triggers also possible.
    • Multi-leg F&O orders possible with basket orders.


    Using the Baskets feature, Sentinel users can create a group of equity, ETFs and F&O contracts. Once they have been bunched together, users can set up an alert that can facilitate buying or selling orders for the entire basket rather than individual entities. Once the condition set by the user is met, users will get an alert that will allow them to take necessary action almost immediately.

    Example: If you wish to buy some bank stocks, you may create a basket of bank stocks and add a trigger on bank nifty>26500. When BankNifty hits that condition, you will get an alert for your basket on Kite Notification and on your email. You can open your notification, which will redirect to your pre-set basket order. From that page, you can directly execute the basket.

    Equity SIP

    This feature is available only with Sentinel PRO. You can set up a basket of Equity or EFTs with weekly, fortnightly, or monthly alerts. On the specific date you will get an alert. By clicking on your alert, you can execute your order in just a few clicks. This is just like Equity SIP, the only extra process involved is that you need to manually execute your trade where in Equity SIP, on given date trade execute automatically.

    Longstanding Orders

    This is also a long-awaited feature with Zerodha where users can place GTC/GTD orders. The newly introduced Baskets feature can be used to create longstanding order alert, which replicates GTC/GTD orders (Good till Cancelled/Good till Day orders). To set it up, users need to create a basket with the items they wish to trade in, and then create an alert while mentioning the price for which they need to buy/sell stock, once the basket is tagged to the sentinel trigger, the trigger will then allow users to instantly carry out the requisite action. While it may be an attractive feature, there is one disadvantage which is that the trade does not execute on its own. Since you need to manually execute your order, this is not 100% GTC/GTD orders.

    Conditional Based Trigger/Execute Multiple Strategies

    With Baskets, users can create a trigger to either buy or sell any instrument if there is a change in a different instrument. Users may add the scripts or contracts that they wish to trade in along with the condition where the alert should be triggered. With the system in place, the alert, which is linked to the basket, will allow users to put/hold for various strategies.

    This is again a new feature launched in Sentinel, where if one script hits the trigger, you have the ability to buy another script. i.e if NIFTY>11000, then buy Nifty Future or buy Nifty 11000 Call.

    Also, with the latest update, you can now create a basket of multi-leg orders on one trigger.

    Sentinel Pros

      • 24/7 support team to look after privacy and security.
      • Notifications not only on the website but also on emails and phone app.
      • You can choose between volume and value of the stock to know the differences.
      • Can compare a particular stock with the same stock using different attributes.
      • Advanced triggers allow the creation of powerful triggers combining multiple stocks and instruments and mathematical conditions.
      • You can also watch the history, the last created alerts on the app.

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    Sentinel Cons

      • The mobile app only has notifications and we can’t active the trigger from there itself.
      • The trigger gets deactivated once the alert is reached by you and you have to reactivate by going to “my alerts” app.
      • There is no direct link to buy stocks from the sentinel app and the accuracy is not a bit of a high range.
      • The persons who use like 220 triggers or more triggers have to reactivate each of them. There should be one click reactivation in this app.

Final thought

The most important thing matters in the market is timing when u enter or exit, for that u can't monitor each and every script for the whole day. Zerodha managed to put a lot of efforts on Sentinel app and it also became successful. Sentinel is now an important aspect of traders and investors life and they hope to keep this app updated with lots of new features and accuracy. Zerodha Sentinel made it easy for those who need the alerts to capture special movement in the market. The best part is you can use the free version to start and can upgrade when comfortable with service/quality of triggers.

Last updated on 23rd Jun 2020



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  1. 1. Do I need a Zerodha Account to use Sentinel?

    No, you don’t need to be a Zerodha customer, you can use your Google or Facebook account with limited access of Sentinel App.



  2. 2. What are the data points/alert conditions that are supported by Zerodha Sentinel?

    You can set alerts based on today’s open price, high, low, close, volume, percentage of change, open interest, total bids, total asks, and many more.



  3. 3. What is the cost of Zerodha Sentinel?

    From May 8, 2019, Zerodha has decided to make Sentinel free, so Zerodha Sentinel pricing or charges is null.



  4. 4. For which segments I can set alerts via Sentinel Platform?

    Zerodha Sentinel support alerts for equity, derivatives, currency and commodity segment.



  5. 5. What is one of the unique features on The Zerodha Sentinel Platform?

    A unique feature you would find on this platform is to create triggers based on the total bids and asks for specific stocks. Not many platforms in the industry support this feature for day traders.



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