COD Sensor

The AN-WQCOD online COD sensor is an instrument designed for detecting chemical oxygen demand (COD) in water

Inductive Water Level Staff

The AN-IWG-WC01/80 inductive water level staff is an integrated device composed of measuring unit, circuit conversion and transmission unit.

80G Radar Water Level Gauge

The AN-WLG-WC04/80G radar water level gauge is a self-developed non-contact water/liquid level detection device.

80G Radar Water Level Gauge

AN-WLG-WC02 80G radar water level gauge is an independently developed non-contact water/liquid level detection device, designed for water level monitoring of rivers,

Tipping Bucket Rain Gauge

The tipping bucket rain gauge is a professional hydrological and meteorological instrument for measuring natural rainfall.

Pressure Water Level Gauge

The AN-PWLG-WC01 pressure water level gauge adopts a diffused silicon piezoresistive pressure sensor with stainless steel isolation diaphragm as the measuring element.

Bubble Type Water Level Gauge

The AN-BSR01 bubble type water level gauge is a high-precision water level sensor independently developed and manufactured by Annaien.

Radar Current Meter

The AN-HWRCM-WC02 radar current meter is a self-developed non-contact flow velocity detection device. It is applied to monitor surface flow velocity of natural rivers,

Portable Doppler Flowmeter

Model AN-PDF11 portable Doppler flowmeter is matched with dedicated Doppler flow sensor. Pre-stored with channel section models including trapezoid,