SentriLock is GKAR's official lockbox provider, however GKAR Members are able to utilize the 上eKey app to access lockboxes outside of the GKAR service area.




You can access Supra lockboxes, key free, in three easy steps:

  1. 下载 上eKey应用 在你的智能手机.
  2. 联系 the listing agent to provide you with One-Time Only a
    ccess (an email or text message will be sent to you confirming this access with a link to create an account).
  3. Create your account by following the 非会员指令.

If you're interested in leasing a Supra Key, they are available through the Southwest Michigan Association of 房地产经纪人S®. Email for more information.



Assigning a Lockbox to a Listing (PDF) 改变你的SentriCard® 销(PDF) Generating 1-Day Codes (PDF)
Lockbox Battery Replacement (PDF) Lockbox Policies and Procedures (PDF) 失去了SentriCard®
SentriKey应用 Overview (Video) SentriKey应用 Getting Started Guide (PDF) SentriConnect® Help Sheet (PDF)



1. How do I get 带锁的箱子 and what is the 成本?
带锁的箱子 are available from your broker. Ask your broker what their office policy and procedure is for obtaining lockboxes. GKAR does not charge a per lockbox fee, the lockboxes are included in your 房地产经纪人® 费和费用.

2. What if I lose or damage my SentriCard®?
In the event of a lost SentriCard®, the key-holder will be required to pay $13.00美元买辆新的SentriCard®. Replacement cards will be offered at no charge for a damaged SentriCard® that can still be offered to GKAR staff as proof of possession. Amounts are subject to adjustment at the discretion of the GKAR 董事会 when necessary. Cards that need to be replaced due to product defect can be exchanged at no charge.

3. Can I use a mechanical lockbox on my listings?
Check with your broker to see what your office policy is. GKAR does not require a SentriLock lockbox to be placed on every listed property, however using a mechanical lockbox versus a secure electronic lockbox does increase your liability.

4. When will I get my SentriCard®?
Once you complete the lockbox portion of 新成员取向 and submit a signed SentriCard® Agreement, GKAR staff can create a SentriCard® 为你.

5. 一辆SentriCard多少钱® 成本?
你的第一个SentriCard® 免费提供吗. If you break your SentriCard® or it becomes worn out from extensive use, bring it into GKAR for a free replacement. If you lose your SentriCard®, there is a $13 fee charged for the replacement card.

6. Is there a SentriLock app I can use?
SentriKey is an app available as a free Member Benefit. 一旦你有了SentriCard® issued in your name you may download and use the SentriKey应用 to generate an access code to show properties you have received permission from the listing agent to show. Always following the Showing Instructions found on every listing in flexmls.

7. How often do I need to renew my SentriCard® 让它继续工作?
一个SentriCard® 每一天到期. During the renewal process the 读者 is taking all of the showing information from the chip of the card and updating the SentriLock website, 而上市代理, which lockboxes you’ve accessed for showings. The 读者 is also checking to make sure you are still a GKAR Member in good standing so the SentriCard® 可以继续工作.

8. Do I need to buy a SentriCard® 读者?
Each Broker was supplied with a SentriCard® 读者 for their office and some offices have purchased additional 读者s that are located at workstations throughout their office. GKAR also has several 读者s that can be used to renew a SentriCard® 应会员要求. If you do not predominantly use the SentriKey应用 and it is not convenient to renew your card at your Broker’s office or GKAR, SentriCard® 读者s can be purchased at GKAR.

9. What do I do if I have problems with a lockbox?
Anytime an error light is illuminated on a lockbox or it is non-responsive, contact SentriLock Support at the number located on the back of your SentriCard® 或使用 SentriKey智能应用 to tap the Support icon at the bottom right corner of the screen.

10. If I'm not a Member of GKAR, can I rent a SentriCard® 访问属性?
Non-GKAR Members (who are Members of MichRIC®) may lease GKAR SentriCards® 收费的. To inquire about this service, please contact 萨曼莎Bartlett.
11. Does GKAR have Supra Keys available for agents to show properties outside of the GKAR service area?
SentriLock is the official lockbox vendor of GKAR; we recommend GKAR Members utilize the 上ekey app to show properties outside of the GKAR service area. 

12. 什么是SentriConnect®?
SentriConnect® is a mobile app that allows the user to temporarily access a listing agent's lockbox. The user must be granted SentriConnect® access by the listing agent. SentriConnect® accesses to a lockbox are displayed in the listing agent's access log. This allows secure tracking of lockbox activity. The app now takes the place of the Contractor Codes, which are no longer available.