Technical parameters: ※ Temperature range: -30 ℃ ~ 70 ℃. Humidity range: 0 ~ 100% ※ Measurement accuracy: ± 0.2 ℃. Measurement accuracy: ± 3% ※ Temperature Resolution: 0.1 ℃. Humidity resolution: 0.1% ※ Probe Dimensions: 20mm * 50mm. Sealing material: Epoxy Lead Length: 2 m (standard) ※ Average power consumption: <1mA (storage interval 60 seconds) ※ Record Capacity: 524,280 ※ Number of channels: 2 channels (can be extended to 15 channels) ※ Recording interval: 1 minute to 100 days adjustable ※ Data Interface: USB2.0, complimentary PC software ※ Power supply: battery 9V, USB5.0V (default configuration) 220V mains (extended configuration, use both!) ※ cable configuration: GB shielded cable 2 m (standard) Functions and Features: ※ The machine smaller, simple operation, reliable performance. Full data tracking, recording time length, data acquisition, recording in one, and after the data is not lost. ※ low-power design, can be used to replace the battery once a month to one year. Recording interval of 1 to 100 days arbitrarily set (recommended setting in minutes or more, the battery life and the length of the interval is proportional.) ※ LCD Chinese display segment, with standby and sleep mode. Supports automatic memory refresh and timing, etc.. ※ professional data processing, with a low battery flash protection, storage failure detection, the device after power data recovery functions. ※ flexible and efficient power management, with hardware reverse and internal short circuit protection. In the DC power supply, AA batteries, lead-acid batteries and solar power coexist USB5.0V other work under way. ※ complimentary PC software, you can easily view or export data charts, support EXCEL spreadsheet storage. Software has 100,000 times zoom capability curve chart display components, view details of the data curve movements and excellent ability. ※ collector communication can be flexibly configured, in addition to USB (UART) mode, but also accepts RS485 communication customization. ※ Optional small earth drill, hole diameter 20mm, depth of up to one meter. The probe can be measured directly into the borehole. Note: ※ probe completely waterproof, but collectors can only withstand humid environment and rain erosion, not soaked, soaking, in order to avoid damage! Scope: ※ can be generalized to apply water-saving irrigation, greenhouse, forest protection, plant culture, food testing, fertilizer culture laboratories. Housing benefit Yafei Handan City Union Electronic Co., Ltd. Mobile: 15369029761 Tel :0310 -5343139 Fax 0310 -8195305 Online QQ: 1756494689 E-mail: 1756494689@qq.com Website: www.hdyimeng.com Company Address: Building A, Handan Cornell Room 1103, Block