●Wall mounting
●128 * 64 dot-matrix LCD display, switchable in Chinese and English, IP65 protection level, all-weather stable operation
●simple menu design, simple and convenient operation, graphical prompt, beautiful and clear interface
●software digital filtering is adjustable, with enhanced hardware resistance to interference, making measurements more stable and adapted to complex industrial environments
●global access power supply 85~260VAC, but also customized DC model 18 to 36 V D C
●RS-485 digital interface, MODBUS-RTU communication protocol, read and write two-way communication, can achieve remote complete control of the instrument
●The is compatible with two types of electrodes, 400nA or 80nA

oxygen concentration DO mg/L	measuring range	0.00～40.00 mg/L
	resolution ratio	0.01 mg/L
	Measurement accuracy (electronic unit)	±0.05 m g/L
Percentage oxygen content DO %	measuring range	0.0～400.0 %
	resolution ratio	0.1 %
	Measurement accuracy (electronic unit)	±0.5 %
temperature	measuring range	-5.0～105℃.0
	resolution ratio	0.1℃
	Measurement accuracy (electronic unit)	±0.3℃
	Temperature input	NTC22K
	Temperaturecompensation	Automatic / manual
Transfer current	Output, type	Two roads of 4~20 mA (the corresponding range can be set)
	Current accuracy	±1% F .S
	output loading	less-than 500Ω
control	Functional relay	One (which can be set to the cleaning or alarm function)
	Switch relay	2 SPST relays
	load capacity	2.5A 230VAC
data transmission	coffret	All-way RS485 isolation voltage is 2500Vrms
	protocol	MODBUS-RTU (read-write two-way communication)
Other parameters	working power supply	85~260VAC or 18~36VDC (optional before order)
	working temperature	0～60℃
	Work humidity	Relative humidity was <90%
	levels of protection	IP65
	way to install	Wall Mounting
	outline dimension	(H×W×D) 160×188×108 mm