Features 1、Material is environmentally friendly, harmless to the human body, and has good electrical conductivity. 2、Great laboratory or electrode probe, widely used for testing of aqueous solutions. 3、Suitable for most ORP instruments and controllers with BNC connectors. 4、It is filled with saturated kcl colloidal solution for containing waste water for printed circuit boards and ORP online detection. 5、Suitable for water sources, aquariums, hydroponics, laboratories, hot springs, swimming pools and other water systems. Specifications Item Type: Electrode Probe Material: PC Weight: Approx. 112g / 3.9oz Size: Approx. 155 x 20 x 20mm / 6.1 x 0.8 x 0.8in(ORP Electrode) Probe Type: Sensitive Ball Bubble Range: 0~±1999mV Accuracy: ±5mV Applicable Temperature Range: 5~70℃ Electrode Potential: 245-270mv (15~30℃) Internal Resistance of Reference Electrode: ≤10kΩ Electrode Stability: ±8mv/24 Electrode Indicator Electrode: Good Conductivity Electrode Plug Type: For Q9 BNC: Upright PH Electrode Wire Length: 1.2m Scope of Application: It can be widely used in water source systems such as aquariums, hydroponics, hot springs, swimming pools, etc. Package List 1 x Electrode Probe Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin