Order no.: PCE-WMM 50

Gas Test Instrument PCE-WMM 50

£ 435.00
£ 522.00
price ex. (VAT / delivery)


Gas Test Instrument to detect carbon dioxide (CO2) / 2 configurable alarm thresholds / 
4-digit digital display / Integrated alarm transmitter / Simple wall assembly

The PCE-WMM 50 is a well-priced device to detect carbon dioxide (CO2). The PCE-WMM 50 prevents heath issues caused by the colourless and inodorous gas, used in the food industry, metal industry, in chemical processes and in the waste industry. The gas detector consists of two units: the detector is to be placed within locations with higher risks, while the alarm unit is placed outside that area. The gas detector features two adjustable alarm thresholds. If the measured value trespasses the pre-set threshold, an alarm is set-off (alarm lights and alarm-buzzer). The gas detector PCE-WMM 50 featured a 4-digit digital display as well as four LED lights assuring a steady visual monitoring of the gas concentration. Through the accessible, potential-free change-over contacts you can activate further alarm units, switch-on an exhauster or stop a machine. The PCE-WMM 50 can be easily mounted to a wall. It consists of a system compartment, a gas detector, an alarm unit and a cable to connect the gas detector with a remote controlling unit. Even smaller amounts of carbon dioxide might cause severe effects on the human organism. A concentration above 0.3% in the air might effect the health. If the concentration arises to 5%, it causes headaches and dizziness, while a concentration of more than 8% lead to unconsciousness and even death.


- Detection of carbon dioxide (CO2)
- 2 configurable alarm thresholds
- 4 digit digital display
- Steady visual control option
- Potential-free change-over contact
- Integrated alarm 
- Easy mounting on wall
- Three system-components


Technical Specifications 
Gas Detector
Measured gasCarbon dioxide (CO2): 0... 50,000 ppm (5%) (vol.) NDIR sensor
Temperature (gas / environment)0... 113°F / 0... 45 °C
Supply of gas samplesBy diffusion
Alarm contacts- 1 potential-free change-over contactor to control external devices (NO/NC) by releasing alarm 1
- Switching power: 30V DC / 250V AC, max. 2 A
Alarm thresholdsAlarm 1
0.5 / 1 / 1.5 / 2%
Alarm 2 
1.5 / 2 / 2.5 / 3 / 3.5 / 4%
Menu itemsFunction test of connection between detection unit and alarm unit, calibration, switch between °C and °F, alarm 1, 2 and factory setting
Display elements- 4-digit digital display for measured gas concentration within range 0... 9999 ppm 
- 3-digit digital display for measured gas concentration within range 1... 5 %
- additional 3-digit digital display for measurement and temperature in °C and °F
- LEDs for operation, alarm 1, 2 and monitoring of voltage supply
Operating elementsReset, menu selection, enter
SafetyContinuous self-surveillance of temperature range, sensor life-time, unplausible values, EEPROM system, internal data transfer
EnclosureSynthetic, IP 54, splash-water proof
Diameters6.6 x 4.9 x 1.8 in / 168 x 125 x 47 mm (without connections)
Voltage SupplyAdapter 100 ... 240 V AC, 50 / 60 Hz
Measuring unit
Temperature (gas / environment)0... 113°F / 0... +45 °C
Menu items- 4-digit digital display for gas concentration within range 0... 9999 ppm 
- 3-digit digital display for concentration within range 1... 5%
- additional digital display to measure temperature in °C and °F
- LEDs for operation, alarm 1, 2 and monitoring of voltage supply
Display elementsFunction test, reset, menu selection, enter, shifting between °C and °F
EnclosureAluminum, IP 54, splash water proof 
Diameters4.6 x  3.3 x 1.3 in / 118 x 85 x 34 mm (without connections)
Voltage SupplyVia data cable to gas detector

Delivery Scope

1 x Gas detector PCE-WMM 50
1 x Instruction manual