Model ETC-961 Thermostat Temperature Controller with Thermometer and Hygrometer A compact, easy-to-mount controller for precise temperature monitoring and on-off control in refrigeration and other temperature-sensitive applications. Offers selectable NTC or PTC probe input, switchable display resolution, and a relay output suitable for common AC refrigeration loads. Key benefits Precise temperature control and monitoring with selectable probe type for different sensor and application needs. Relay output rated for typical refrigeration loads to control compressors or heaters. Compact panel-mount design for straightforward installation in cabinets, control panels, or equipment enclosures. Clear numeric display with switchable resolution between integer and 0.1 to suit coarse or fine control needs. Main specifications Model: ETC-961 Power supply: 230 VAC plus or minus 10 percent, 50/60 Hz Relay output rating (refrigeration): 10 A at 220 VAC Operating temperature range: -5 to 55 C Relative humidity: 10 to 90 percent RH (non-condensing) Storage temperature: -30 to 85 C Temperature control range: NTC probe: -50 to 110 C (corresponding to -58 to 230 F) PTC probe: -55 to 140 C (corresponding to -67 to 284 F) Probe types supported: NTC range: -50 to 120 C PTC range: -50 to 150 C Display resolution: selectable between 1 and 0.1 Accuracy: NTC probe: approximately 0.5 C in -30 to 50 C range, about 1 C outside that range PTC probe: approximately 1 C in -30 to 50 C range, about 2 C outside that range Physical size (product): 77 x 34.5 x 58 mm Cutout / mounting size: 71 x 29 mm Probe cable length: 2 m (including probe) Color: black Material: plastic Typical applications Refrigeration control for small cabinets, display cases, or cold rooms where reliable on-off control is required. Environmental monitoring in hobby or laboratory setups, such as climate cabinets, fermentation or brewing stations, and plant growth chambers. General temperature and humidity monitoring for aquariums, terrariums, or storage cabinets where compact panel mounting is needed. What is in the box 1 x temperature controller (probe included) Other items shown in images are not included Notes Allow slight differences in color due to lighting and display variations. Allow small measurement tolerance in physical dimensions due to manual measurement.