Z7-821 wireless temperature collector can collect temperature, switch and other signals through GPRS/GSM network, support active reporting and caller-response two data transmission methods, and support SMS query and SMS alarm function.
The Z7-821 is a compact wireless temperature collection instrument designed for use where cellular signal is available. It measures temperature with a PT1000 sensor and can also acquire three auxiliary signals, sending data via GPRS or SMS.
The device operates on a 9 V‑30 V supply, offers a temperature range of –99.9 °C to +99.9 °C, and provides a display accuracy of 0.1 °C (overall accuracy 0.2 °C). Its dimensions are 121 mm × 71.5 mm × 25.5 mm, making it suitable for wall mounting. This manual is written in Chinese.
| Temperature range | -99.9°C to +99.9°C |
|---|---|
| Temperature channels | 1 |
| Display accuracy | 0.1°C |
| Overall accuracy | 0.2°C |
| Auxiliary inputs | 3 |
| Operating temperature | -10°C to +60°C |
| Power supply | +9 V to +30 V |
| AD resolution | 16 bits |
| Communication | GPRS / SMS |
| Sensor input | PT1000 |
It supports data transmission via GPRS and SMS.
It operates on a supply voltage of +9 V to +30 V.