# SMS Alert

> Remote monitoring and alarm system for environmental and power conditions. (iPhone/iPad app by 朝山 马.)

- Source: https://appshunter.io/ios/app/sms-alert/id1100172188 (this page in markdown: same URL + `.md`)
- Developer: [朝山 马](https://appshunter.io/developer/596304901)
- Category: Utilities
- Price: Free
- Rating: 4.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 7 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2016-05-07
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sms-alert/id1100172188/reviews.md

## What is SMS Alert?

RTU5023 (temperature and humidity monitoring), RTU5026 (temperature monitoring), RTU5027 (analog monitoring), RTU5028 (power monitoring), RTU5029 (3/single-phase power monitoring) series products are the temperature/humidity/analog power/voltage/monitoring alarm.Can be set up according to the practical application of temperature/humidity/analog/power supply voltage of the high and low limit alarm value, when the current value reaches the alarm value, when will send alarm messages and telephone inform the user.

User can from the authorization number by calling equipment number, will automatically reject and immediately send current status messages to BoDaZhe, users can query the current state via text message instructions.Equipment can be set up on a daily basis fixed point and periodic reports the current status messages to the first user.At the same time support the Modbus RTU and Modbus TCP connection cloud platform, can through the network real-time monitoring of the current state.

This series product can be used for monitoring temperature and humidity monitoring, 4~20 mA, or 0~5V DC voltage analog signal monitoring, monitoring, three-phase power single-phase power monitoring, monitoring, and is suitable for classrooms, public places, hospitals, railway stations, food warehouses, offices, factories, libraries, LABS and so on, and any needs to be monitored and support.

## Key features

- Temperature and humidity monitoring
- Analog signal monitoring (4-20mA, 0-5V)
- Power monitoring (single/three-phase)
- SMS and phone call alerts
- Remote status query via text
- Scheduled status reporting
- Modbus RTU/TCP cloud platform support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sms-alert/id1100172188/reviews.md

### 3/5 — Seems broken

*2022-09-21*

Just had need to set some new parameters, seems like iOS 15 breaks the entry field of the app. You can still manually set things via SMS, however.

## Frequently asked questions about SMS Alert

### What devices does SMS Alert support?

SMS Alert supports RTU5023, RTU5026, RTU5027, RTU5028, and RTU5029 series products for monitoring temperature, humidity, analog signals, and power.

### How does SMS Alert notify users of alarms?

When a monitored value reaches a set alarm limit, SMS Alert will send an alarm message and make a phone call to inform the user.

### Can I check the current status of my devices with SMS Alert?

Yes, users can query the current device status by calling the equipment number. The device will automatically reject the call and send a status message.

### Does SMS Alert offer periodic status reports?

Yes, the equipment can be configured to send current status messages to the user at fixed points or periodically on a daily basis.

### What platforms is SMS Alert available on?

SMS Alert is available on iPhone and iPod devices.

### What is the age rating for SMS Alert?

SMS Alert has an age rating of 4+.

### How often is SMS Alert updated?

The latest version of SMS Alert is 2.1, which was last updated on December 21, 2020.

### Does SMS Alert have ads?

No, SMS Alert does not contain advertisements.

## Version history (last 5 releases)

### 2.1 — 2020-12-21

- RTU5028 upgrade adds voltage over-high/low-limit alarm function

### 2.0 — 2019-04-30

- add support RTU5029S

### 1.2 — 2018-08-10

- add support 5026, 5027, 5028, 5029 on the RTU5023
- add Modbus RTU and Modbus TCP protocol
- add equipment networking related instructions

### 1.1 — 2016-12-29

Add four new commands:
- Setting Restart Cycle
- Inquiry Restart Cycle
- Restart
- Reset (Format)

### 1.0 — 2016-05-07

No release notes.

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| [YY BMS](https://appshunter.io/ios/app/yy-bms/id1574291362) | — | Free | Utilities |
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## More apps by 朝山 马

- [GSM Emergency call alarm system](https://appshunter.io/ios/app/gsm-emergency-call-alarm-system/id1087839201)
- [GSM 3G Touch Keypad Alarm System](https://appshunter.io/ios/app/gsm-3g-touch-keypad-alarm-system/id1090013292)
- [GSM 3G M2M RTU](https://appshunter.io/ios/app/gsm-3g-m2m-rtu/id1095288504)
- [GSM GPRS 3G Gate Opener](https://appshunter.io/ios/app/gsm-gprs-3g-gate-opener/id1099574609)
- [GSM Elderly Care Alarm](https://appshunter.io/ios/app/gsm-elderly-care-alarm/id1100709587)

All apps by 朝山 马: https://appshunter.io/developer/596304901

## Related topics

[free ota monitoring](https://appshunter.io/ios/topics/free-ota-monitoring) · [ota monitoring app](https://appshunter.io/ios/topics/ota-monitoring-app)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*