| Power | 4 1.5V AAA alkalinity batteries |
| Display screen | 240 × 160 dot matrix LCD |
| Operating Temperature | 0℃-50℃ |
| Total Weight | 194g |
| Complete-built unit size | 148*76*26 mm |
| Storage temperature | -20℃-60℃ |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;