The pen ORP meter is professional and tool for testing ORP and of your level. Suitable for aquarium pool and environment .

Features:
Use to measure the amount of Oxidation Reduction Potential (ORP) level and (°C/ °F).
Double functions, measuring ORP and .
Clear LCD display with backlight.
Apply in sources, aquarium, hydroponics, spas, swimming pools and other systems.
Waterproof IP65 and replaceable probe.
Auto shut off.
Compact and portable pen-type design.
Easy to use and provides instant display of results.

Specifications:
: -1999mV ~ 1999mV
: -50℃ ~ 70℃(-58℉ ~ 158℉)
Resolution: 1mV; 0.11℃(0.2℉)
Accuracy: ±5mV; ±1℃(±2℉)
Operating : 0℃ ~ 50℃ (32°F ~ 122°F)
: 4×1.5V(AG-13) Button Cell (not included)
Color: Yellow
Material: ABS
Item Size: 14.7 * 2.7 * 1.8cm / 5.8 * 1.1 * 0.7in
Item Weight: 74.5g / 2.6oz
Package Size: 21 * 10.4 * 5cm / 8.3 * 4.1 * 1.9in
Package Weight: 157g / 5.5oz

Package List: E0921
1 * ORP Meter ( is not included)
1 * User Manual
1 * Screwdriver