Features:
Professional for testing the Oxy-gen content of the air, with 0-25% Oxy-gen content detection range.
Adopts with good quality electrochemical sensor, the O2 meter respond quickly yet has high precision.
3.7V 1000mAh large capacity rechargeable lithium batt-ery has long standby time and low power consumption.
2.7-inch large LCD display screen, and the green backlight for clearly reading the measured data.
Compact portable size with ergonomic design is easy to use, high quality rubber buttons has comfortable hand feel during operation.
Sound and light dual-alarm when the measured result exceed the preset alarm value.
The O2 tester has stable performance and high accuracy that suitable for home use, agriculture, chemical industry, etc.

Specifications:
Material: ABS
Voltage: AC100-240V, 50/60Hz
Output: DC5V±5%, 1000±50mA
Measuring Range: 0~25%
Resolution: 0.1%
Temperature: -10~50℃
Resolution: 0.1℃
Working Humidity: 0~95%RH
Power Supply: 1 * 3.7V, 1000mAh rechargeable li-ion batt-ery
Screen Size: 4.4 * 5.3cm / 1.73 * 2.08in
Storage Box Size: 23 * 20.5 * 5cm / 9.06 * 8.07 * 1.97in
Item Size: 18.3 * 6.5 * 3cm / 7.20 * 2.56 * 1.18in
Item Weight: 245g / 8.64oz
Package Weight: 743g / 26.21oz
Package Size: 25.5 * 21 * 5.7cm / 10.04 * 8.27 * 2.24in

Package List:
1 * Detector
1 * USB Cable
1 * Storage Box
1 * Manual (English)