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J-2/J-3 Overview and Characteristics

1. Compact structure design, small space, suitable for a variety of occasions.

2.LED white light with adjustable brightness and energy saving lighting can provide the operator with an optimal field of view for colony counting.

3. When counting, sound prompts to avoid the occurrence of missing and overcounting.

4. The unique upper light source compensates the illumination, which is easy to count the colonies that are difficult to observe.

5. Special light touch counting pen to ensure that there is no omission in counting.

6. Wide voltage design, effectively avoid the interference of unstable power supply to the instrument.

J-2S Overview and Characteristics

1. Pressure sensing counting system, suitable for any marker.

2. Compact structure design, small space, suitable for a variety of occasions.

3.LED white light with adjustable brightness and energy saving lighting can provide the operator with an optimal field of view for colony counting.

4. When counting, sound prompts to confirm each count.

5. The unique upper light source compensates the illumination, which is easy to count the colonies that are difficult to observe.

6. Wide voltage design, effectively avoid the interference of unstable power supply to the instrument.

Technical specification

Technical parameters	J-2	J-3	J-2S
Illumination	White light LED array	White light LED array	White light LED array
Digital display	3-digit LED display	3-digit LED display	3-digit LED display
Range of count	0-999.	0-999.	0-999.
Mode of counting	Switch-on stylus	Switch-on stylus	pressure sensitive switch
Suitable petri dish	50-90mm	50-150mm	50-90mm
Input voltage (frequency)	AC 100-240V(50/60Hz)	AC 100-240V(50/60Hz)	AC 100-240V(50/60Hz)
Input power	20W	40W	20W
Factor of magnification	3 times (9 times)	3 times (9 times)	3 times (9 times)
Enclosure protection grade	IP21	IP21	IP21
Allowable relative humidity	80%	80%	80%
Allowable ambient temperature	5-50℃	5-50℃	5-50℃
Dimensions of appearance	255x210x160mm	360x300x180mm	255x210x160mm
Net weight	2.2Kg	4.0Kg	2.8Kg