Shanghai Boqu Environmental Technology Co., Ltd

China‑based Shanghai Boqu Environmental Technology Co., Ltd lists seven active products in its catalogue. The portfolio includes portable EC meters, conductivity meters, multiple portable pH meters, a dissolved‑oxygen meter, an industrial‑grade pH meter, and a hydroponic dosing EC controller. Three of the devices - the Portable EC Meter, Portable pH Meter, and the Dissolved Oxygen Meter - are classified under HS code 9027.80, which covers instruments for measuring or testing electrical quantities. The remaining items are also electronic measuring instruments, though specific HS codes are not provided in the source data. All products feature ABS plastic housings combined with electronic circuitry and sensor elements such as platinum electrodes or electrochemical sensors.

The catalogue shows a focus on field‑ready water‑quality instruments: a Portable EC Meter, a Dds‑1702 Conductivity Meter, Portable pH Meters (two models), a Dos‑1703 Dissolved Oxygen Meter, an industrial Phg‑1901 pH Meter, and a Hydroponic Dosing EC Controller. In the broader market, portable EC meters are typically offered with measurement ranges from 0 to 20 mS cm⁻¹, accuracy of ±1 % of reading, temperature compensation of ±0.5 %/°C, and battery life of 8 - 12 hours. Portable pH meters usually cover pH 0 - 14 with accuracy of ±0.01 to ±0.02 pH units and feature automatic temperature compensation. Dissolved oxygen meters for field use commonly provide ranges up to 20 mg L⁻¹, accuracy of ±0.2 mg L⁻¹, and use either polarographic or optical sensors. Buyers often request compliance with IEC 60757 (electronic meters) and CE marking for safety and electromagnetic compatibility, although the supplier’s certifications are not listed in the facts.