The electrode is composed by the glass electrode and reference electrode. It is the measuring of meter, using to measure the of aqueous solution/.

Features:
Replacement electrode for pH-990, -217, -218, /EC-9853, -117, -118, -991, -3012, /-9851, ORP/-999.
Widely used to test the the of aqueous solution/.
accessory for water quality tester.
laboratory electrode probe.
Suitable for most meter and controller with BNC-Q9 connector.
Apply in sources, aquarium, hydroponics, laboratory, spas, swimming pools and other systems.

Specifications:
Type: Laboratory Electrode
Model: -990, -217, -218, /EC-9853, -117, -118, -991, -3012, /-9851, ORP/-999
Suitable : E1595, E1597, E1598, E1274, E0919, E1135, E1147, E1149, E1150, E1273
Display: Digital Display
Probe Type: Sensitive Crystal Ball Bubble
: 0.00 ～ 14.00pH
Resolution: 0.01pH
Accuracy: ±0.1pH  
: 0℃ ～ 50℃ (32℉ ～ 122℉)
Color: Black
Material: ABS
Type of Electrode : Q9 
BNC: Upright 
Length of Electrode Line: Approx. 1.1m / 43.3in 
Item Size:  Approx. 65 * 25mm / 2.56 * 0.98in (H * D)
Item Weight: Approx. 41.7g / 1.47oz
Package Size: Approx. 7.5 * 5 * 6.5cm / 2.95 * 1.97 * 2.56in
Package Weight: Approx. 43g / 1.52oz

Package List: E1926
1 * Electrode