Product Overview
MODBUS WMD20It is aDN20A remote valve controlled intelligent water meter with a caliber, usingOptoelectronic direct reading technologyDirectly read the mechanical dial numbers of the water meter without cumulative error, and the reading is completely consistent with the dial display. Built in electric valve, can pass throughRS485 ModbusInstruct remote valve opening and closing to achieve dual functions of remote meter reading and remote water control. coordinationHome AssistantCan create a smart home water management system.
Photoelectric direct reading vs Pulse type
| Comparison items | Photoelectric direct reading | Pulse type |
|---|---|---|
| Reading method | Directly read the character wheel numbers | Counting water flow pulses |
| Accumulated error | None (reading the dial number each time) | Yes (pulse loss/multiple counts) |
| Does the power outage have an impact | No impact, read incoming calls directly | Water loss during power outage |
| Consistency with mechanical watches | 100%agreement | Possible deviation |
Core parameters
- Caliber: DN20(6 points)
- Measurement level: R80/R100(High sensitivity)
- Reading method: Optoelectronic direct reading
- ValveBuilt in electric ball valve (can be remotely opened and closed)
- signal communication: RS485 Modbus RTU
- Power supply: DC 12V(External power supply, non battery)
HASmart water management scenario
- Remote meter readingAutomatically read and record water meter readings daily, replacing manual meter reading
- Leakage detectionDuring the 'unmanned water period' at night, there is still continuous flow of water→Possible water leakage→Push alerts and remotely close valves
- Water consumption analysisDaily/weekly/monthly water consumption statistics and trend charts
- Budget controlMonthly water usage exceeds budget→Automatic valve closing reminder
🛒 Purchase and consultation
The Modbas products introduced in this article can be purchased through official channels.MODBUSModbas Intelligence
📍 Tower A, Langqing Plaza, Guanyin Bridge, Jiangbei, Chongqing, China | Building12Phone:
📞 Email:+86-18801054468
📧 Official website:iot@modbus.com | 🌐 WeChat Mini Program Searchwww.modbus.cn
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