BTR-1000 / HM DIGITAL Coffee Refractometer It can store up to 20 data and has Bluetooth technology. This allows you to store and read data using your smartphone.

COM-100 HM Digital EC / TDS / Temperature Water Meter EC / TDS / Temperature Meter Waterproof Calibrate button press for water quality measurement EC Fertilizer Hydroponics

COM-300 / HM DIGITAL pH / EC / TDS / Temp Meter for pH, EC / TDS / Temp Meter Suitable for use in food, water, swimming pool, hydroponics

DM-1 HM Digital Tachometer In-Line Dual TDS Monitor Measuring Range 0-9990 ppm Resolution 1 ppm

DM-2: Commercial In-Line Dual TDS Monitor Install on industrial systems such as car washes, window washing, manufacturing, and food processing.

EC-3 HM Digital Conductivity Meter The EC meter is ideal for measuring the purity of water. Aquarium water treatment system, aquaculture water, hydroponics fertilizer.

ORP-200 HM Digital ORP Meter Waterproof ORP Meter is an ORP level measuring instrument, including antioxidant measurement, environmental testing, aquaculture, agriculture or hydroponics. Knicks

PH-200 HM DIGITAL pH Meter Waterproof pH Meter is suitable for pH testing with advanced microprocessors. Provides reliable reading. Highly accurate in applications such as hydroponics, hydroponics, ...

PS-54S / HM DIGITAL ECS TDS Controller EC / TDS Controller The EC / TDS Controller has a large LCD display with backlight readability and clarity. 4-20mA The signal can be connected to the PLC to record the value.

SP-1 HM DIGITAL TDS / EC Sensor Probe for Panel Mounted Controllers for use with PS-100, PC 100, PS 200 and PS-202. Long use

TDS-3 HM DIGITAL TDS Meter TDS Meter TDS Meter Silt Meter For general water quality Water filters, drinking water vending machines.

AP-2 HM Digital Conductivity Meter Hydroponic Meter Conductivity Hydroponic Meter- Conductivity and Temperature Measurement - Measuring Range: 0-9999 μS- Waterproof