Formaldehyde Meter
Model: PHCHO-500

Features :
* Formaldehyde ( HCHO ), Temperature.
* Formaldehyde range : 0 to 50 ppm x 0.1 ppm.
* Temperature. : 0 to 50°C,°C °F.
* HCHO response time : <120 seconds.
* Alarm beeper.
* Data hold.
* DC 1.5V battery ( UM-4/AAA ) x 4.
* Pen type, easy carry