The XT815-M is a cost-effective mechanical pulse prepaid water meter fully aligned with the IEC 62055 STS standard. It combines a mature mechanical metering structure with secure 20-digit TOKEN recharge, intelligent valve control and optional remote communication. The model is designed for residential properties, commercial buildings and large-scale retrofit projects that require dependable prepaid billing at a controlled project cost.
| Key Feature | Customer Value |
| Secure STS prepayment | 20-digit encrypted TOKEN recharge helps protect transactions against unauthorized use and tampering. |
| Automatic valve control | Built-in motorized ball valve supports low-balance alerts, automatic shutoff and reopening after valid recharge. |
| Proven mechanical design | Mechanical impeller and pulse acquisition provide a mature, impact-resistant and economical metering solution. |
| Anti-magnetic protection | Strong magnetic interference can trigger an alarm and automatic valve closure to help prevent water theft. |
| Remote management ready | Optional 4G, LoRa or LoRaWAN supports remote reading, configuration and operational reporting. |
| Field-ready protection | IP68 sealing and a long-life lithium battery support demanding installation environments. |
| Parameter | Specification |
| Model | XT815-M mechanical pulse type |
| Metering method | Mechanical impeller + pulse acquisition |
| Nominal diameter | DN15 / DN20 / DN25 |
| Permanent flow rate Q3 | DN15: 2.5 m³/h · DN20: 4.0 m³/h · DN25: 6.3 m³/h |
| Turndown ratio | R100 |
| Accuracy class | Class 2 |
| Water volume unit | 0.001 m³ |
| Static current | ≤ 20 μA |
| Temperature class | T30 |
| Rated water pressure | 1.6 MPa |
| Ingress protection | IP68 |
| Installation orientation | Horizontal (H) or vertical (V) |
| Power supply | Long-life lithium battery; typical service life 6–10 years |
| Communication options | 4G / LoRa / LoRaWAN |
| Prepayment protocol | STS (IEC 62055), 20-digit encrypted TOKEN |
Residential billing: Prepaid water management for apartments, communities and housing developments.
Bulk meter replacement: A practical solution for budget-sensitive utility retrofit and meter renewal programs.
Commercial properties: Credit-based water supply control for shops, offices, dormitories and rental properties.
Commissioning: Open the upstream valve slowly while venting through a downstream outlet. Confirm stable flow indication, normal accumulation and leak-free connections.
The customer enters a secure 20-digit STS TOKEN. Once accepted, the credit is added and the valve can reopen automatically after a valid recharge.
The meter can issue a low-balance warning and automatically close the motorized valve when the available credit reaches the configured limit.
Yes. Depending on the selected configuration, 4G, LoRa or LoRaWAN can be used for remote reading, parameter configuration and reporting.
Remove the nearby magnetic source first, then restore the valve using the authorized error-clearing TOKEN according to the project procedure.
Address: Xiao'anzi Industrial Park, Baishabu Town, Lanshan District, Linyi City, Shandong Province
Call us now:+86 15562945993
Email:info@sdchenshuo.cn
Shandong Chenshuo Instrument Co., Ltd.
