Extech EC500 Waterproof ExStik pH/Conductivity Meter
The Extech EC500 ExStik® II is a waterproof meter that measures five parameters, conductivity, TDS, salinity, pH and temperature, with one combination electrode: a rugged flat-surface pH electrode paired with an autoranging, high-accuracy conductivity cell.
Nine units of measure, an analog bargraph for trends and memory for 25 labeled readings make it a complete pocket water tester for the field or the lab. The conductivity-to-TDS ratio is adjustable, and the RENEW feature tells you when the electrode is due for replacement.
EC500 features:
- Measures conductivity, TDS, salinity, pH and temperature with one electrode
- Combination flat-surface pH electrode with autoranging conductivity cell
- 9 units of measure: pH, µS/cm, mS/cm, ppm, ppt, mg/L, g/L, °C and °F
- Analog bargraph indicates trends
- Memory stores up to 25 labeled readings
- Adjustable conductivity-to-TDS ratio from 0.4 to 1.0; fixed 0.5 salinity ratio
- RENEW feature alerts you when the electrode needs replacement
- Replaceable electrode module (Extech EC505)
- Auto power off and low battery indicator
- Waterproof IP57 housing
The EC500 includes:
- EC500 meter with electrode
- Protective sensor cap
- Sample cup with cap
- Four CR2032 (3 V) button batteries
- 48 in (1.2 m) neck strap
The EC510 Kit Upgrade includes:
- EC500 meter with electrode, protective sensor cap and batteries
- 84 µS/cm, 1413 µS/cm and 12,880 µS/cm conductivity calibration standards
- pH buffer pouches (one each of pH 4, 7 and 10) plus rinse solution
- Weighted base
- 3 sample cups with caps
- Carrying case
The EC510 kit is also listed on its own: Extech EC510 Waterproof ExStik pH/Conductivity Kit.
Specifications
| Range | 0 to 199 µS/cm; 200 to 1999 µS/cm; 2.00 to 19.99 mS/cm |
|---|---|
| Max. resolution | 0.1 µS/cm |
| Basic accuracy | ±2% FS |
| Range | 0 to 99.9 ppm (mg/L); 100 to 999 ppm (mg/L); 1.00 to 9.99 ppt (g/L) |
|---|---|
| Max. resolution | 0.1 ppm (mg/L) |
| Basic accuracy | ±2% FS |
| Conductivity to TDS ratio | Adjustable, 0.4 to 1.0 |
| Salinity ratio | Fixed, 0.5 |
| Range | 0.00 to 14.00 pH |
|---|---|
| Max. resolution | 0.01 pH |
| Basic accuracy | ±0.01 pH |
| Range | 23 to 194 °F (-5 to 90 °C) |
|---|---|
| Max. resolution | 0.1 °F / °C |
| Basic accuracy | ±1.8 °F / ±1 °C |
| Units of measure | pH, µS/cm, mS/cm, ppm, ppt, mg/L, g/L, °C, °F |
|---|---|
| Memory | 25 labeled readings |
| Waterproof rating | IP57 |
| Power | 4 × CR2032 (3 V) button batteries |
| Certifications | CE |
| Dimensions | 1.4 × 6.8 × 1.6 in (35.6 × 172.7 × 40.6 mm) |
| Weight (meter) | 3.8 oz (110 g) |
| Warranty period | 2 years |
|---|
Shipping
| Carriers | UPS or FedEx for domestic orders; FedEx for international orders |
|---|---|
| Shipping cost | Calculated automatically at checkout for US orders. International orders require a complete ship-to address with postal code. |
| Freight terms | FOB shipping point, freight prepaid. Title passes to the buyer at the vendor's dock. |
| Hazardous items | Epoxy adhesives, batteries and paint markers cannot ship by air freight |
| International | Shipping fees do not include taxes, tariffs or duties |
Returns
| Return window | 7 calendar days from delivery. Contact us before returning any item. |
|---|---|
| Condition | New, unaltered and unused. Special and custom orders are not returnable. |
| Restocking fee | 15% on non-defective items that are not being exchanged |
| Full policy | Refund / Return Policy |
See our Shipping & Billing Terms for how estimated shipping is charged, and our Refund / Return Policy.
Questions about shipping on this item? Call (214) 238-0493 or contact us.