Tongdy
G09-O3-3111-B50
Wall Mount Ozone Monitor
Wall Mount Ozone Monitor provides precise real-time measurement of ozone levels with temperature and humidity compensation for accurate readings.
Note: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling.
It features a tri-color backlit LCD displaying three ozone concentration ranges, enabling clear status indication. The unit offers one analog output (0-10V/4-20mA), one relay output for controlling devices like ventilators or ozone generators, and an optional RS485 interface for integration with PLC or control systems. Its replaceable sensor and zero-point calibration ensure long-term reliability, while configurable control modes and an audible alarm enhance operational safety and flexibility.
The unit includes a handheld remote controller for parameter setup and additional functionality. The unit is designed to be hardwired for power, and an 120V AC power adapter is also available as an option.
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Real-time monitoring of ambient ozone levels and temperature
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High-sensitivity electrochemical ozone sensor for accurate detection
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LCD display with three-color backlight (Green/Yellow/Red) for immediate visual alert
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Adjustable measurement range: 0–5000 ppb (0–9.81 mg/m³) or 0–1000 ppb, user-resettable
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Two dry-contact outputs for dual-stage alarms, ozone generator, or ventilator control
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Buzzer alarm with 3-color LCD indication
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Analog output (0–10 VDC / 4–20 mA) usable as a transmitter
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Modbus RS485 interface with 15 kV antistatic protection and individual IP address
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Easy calibration and alarm setup via infrared remote or RS485 interface
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Temperature measurement included, optional humidity monitoring
- Remote Control included for setup and maintenance
| Gas Detected | Ozone |
| Sensing Element | Electrochemical gas sensor |
| Sensor lifetime | >2 years, removable |
| Temperature Sensor | NTC |
| Humidity Sensor | HS series capacitive sensor |
| Power Supply | 24VAC/VDC (power adaptor selectable) |
| Power Consumption | 2.8W |
| Response Time | <60s @T90 |
| Signal Update | 1s |
| Warm up Time | <60 seconds |
| Ozone Measuring Range | 0~5000ppb (0-5ppm)( 0~9.81mg/m3)
0~1000ppb |
| Display Resolution | 1ppb (0.001ppm) (0.01mg/ m3) |
| Accuracy | ±0.01ppm + 10% reading |
| Nonlinear | <1%FS |
| Repeatability | <0.5% |
| Zero Drift | <1% |
| Alarm | Buzzer and Yellow or Red backlight switch |
| Display | Green-normally, Orange – first stage alarm, Red- second stage alarm. |
| Temperature/humidity Measuring Range | 5℃~60℃ (41℉~140℉)/0~80%RH |
| Analog Output | 0～10VDC(default) or 4~20mA linear output selectable |
| Analog Output Resolution | 16Bit |
| Relay dry contact Output |
Two dry-contact outputs
Max, switching current 3A (220VAC/30VDC), resistance Load |
| Modbus Communication Interface |
Modbus RTU protocol with 19200bps(default)
15KV antistatic protection |
| Working Condition/Storage Conditions | 5℃~60℃ (41℉~140℉)/ 0~ 80% RH |
| Net Weight | 190g |
| Dimensions | 130mm(H)×85mm(W)×36.5mm(D) |
| Installation Standard | 65mm×65mm or 85mmx85mm or 2”×4” wire box |
| Interface Connection (Max) | 9 terminals |
| Wiring Standard | Wire section area<1.5mm2 |
| Manufacturing Process | ISO 9001 Certified |
| Housing and IP class | PC/ABS fireproof plastic material, protection class: IP30 |
| Compliance | EMC Directive 89/336/EEC |
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